Turner Motorsport offers a variety of Performance Intake options for your BMW, including Genuine BMW, aFe Eventuri, Dinan, Gruppe M, Agency Power, and ECS Tuning.
We are proud to present you with our long-awaited Turner Motorsport Carbon Fiber N55 Intakes. Like all of our Turner Motorsport products, our N55 intake was CAD Designed in-house to give you the best performing, most beautiful intake we could possibly imagine for your N55 powered BMW. The best part? Our design seamlessly integrates with OEM ducting and stock mounting locations to give you a simple install and an OEM+ fit and finish. We believe this is the way the N55 engine bays should have come from the factory. It’s time to ditch all that plastic. Our higher flow filter and intake design gave our F30 335i an additional 7 WHP and 14 ft-lbs of torque over stock when we tested on our dyno. Our less restrictive intake design reduced post filter pressure by 0.2 psi over stock, allowing for gains across the entire RPM range - this reduced pressure drop also results in less stress on your N55’s turbo. We offer our N55 carbon intake in either gloss or matte finish, so you can choose what best suits your engine bay. Select either gloss or matte finish below, and then please select whether or not you are purchasing an intake for a manual transmission vehicle. If your vehicle has a manual transmission, it will require BMW Part # 13907515387. If you are looking for our Turner Motorsport Enclosed Carbon Intake, see T#568148. Note that we only offer Open intakes for F87 M2. Download PDF Installation Instructions Key Features & Benefits: 2x2 twill weave carbon fiber, clear coated for UV protection Wrinkle Black Powder Coated heat shield Ovaled Intake tube for OEM quality fitment High flow cleanable Turner Motorsport air filter Peak gains of +7 WHP / +14 lb-ft of torque (with max gains of +12 WHP / +15 WTQ) Special care instructions: If clear coat gets scratched, reseal affected area with clear coat touch up To retain UV resistance and protect finish, wax with high quality carnuba wax Our N55 Carbon Intake fits the following BMWs: 2016+ F87 M2 *WILL NOT FIT M2 CS (N55 only) 2014 - 2016 F22 M235i, M235i xDrive 2012 - 2015 F30 335i, 335i xDrive 2012 - 2015 F32 435i, 435i xDrive Want more in-depth details? We’ve got you covered below: Carbon Fiber Intake Tube: 2x2 twill weave carbon fiber, protected by a clear coat for UV protection Ovaled intake tube design allowing for ideal cross-sectional area and optimal flow MAF scaling matches factory intake MAF sensor flange machined from 6061-T6, black anodized and bonded to the intake tube directly in the center of the tube for accurate temp/airflow reading Vacuum line port machined from 6061-T6, black andozed and bonded to intake tube Integrated carbon flange allows secure mounting of intake tube to our heat shield Heat shield: One piece design manufactured from 12 gauge 5052 aluminum Wrinkle black powder coated Supplied gold heat shield tape High Flow Air Filter: Conical high flow cleanable air filer 8 ply oiled cotton gauze Bellmouth filter flange inlet reduces turbulence and maximizes flow
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Designed with a smooth contour for unobstructed flow compared to the OE molded plastic. This provides increased turbo response, increased airflow, & less turbo lag. Constructed of 5-Ply reinforced silicone for improved durability. Pair with our Turner upper intake pipe for even more intake noises!
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Constructed of 5-Ply reinforced silicone for improved durability. Designed with a smooth contour for unobstructed flow compared to the OE molded plastic. Increase turbo response, increase airflow, and reduce turbo lag.
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Designed with a smooth contour for unobstructed flow compared to the OE molded plastic. Increased turbo response, increased airflow, less turbo lag. Constructed of 5-Ply reinforced silicone for improved durability.
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We are proud to present you with our long-awaited Turner Motorsport N20 Intakes for F3x Chassis! Like all of our Turner Motorsport products, our N20 intake was CAD-Designed in-house to give you the best performing, most beautiful intake we could possibly imagine for your N20 powered BMW. The best part? Our design seamlessly integrates with OEM ducting and stock mounting locations to give you a simple install and an OEM+ fit and finish. We believe this is the way the N20/N26 engine bays should have come from the factory. It’s time to ditch all that plastic. Our higher flow filter and intake design reduced post filter pressure by 0.2 psi over stock, allowing for gains across the entire RPM range - this reduced pressure drop also results in less stress on your turbo. If you are looking for our Turner Motorsport Enclosed Carbon Intake, see T#:656162
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We are proud to present you with our long-awaited Turner Motorsport Carbon Fiber N55 Intakes. Like all of our Turner Motorsport products, our N55 intake was CAD Designed in-house to give you the best performing, most beautiful intake we could possibly imagine for your N55 powered BMW. The best part? Our design seamlessly integrates with OEM ducting and stock mounting locations to give you a simple install and an OEM+ fit and finish. We believe this is the way the N55 engine bays should have come from the factory. It’s time to ditch all that plastic.
Our higher flow filter and intake design gave our F30 335i an additional 7 WHP and 14 ft-lbs of torque over stock when we tested on our dyno. Our less restrictive intake design reduced post filter pressure by 0.2 psi over stock, allowing for gains across the entire RPM range - this reduced pressure drop also results in less stress on your N55’s turbo. Our enclosed intake also lowers your intake temperatures by 13 degrees over running an open intake.
We offer our N55 carbon intake in either gloss or matte finish, so you can choose what best suits your engine bay. Select either gloss or matte finish below, and then please select whether or not you are purchasing an intake for a manual transmission vehicle. If your vehicle has a manual transmission, it will require BMW Part # 13907515387.
If you are looking for our Turner Motorsport Open Carbon Intake, see T#568168
Download PDF Installation Instructions
Key Features & Benefits:
2x2 twill weave carbon fiber, clear coated for UV protection
Wrinkle Black Powder Coated heat shield
Ovaled Intake tube for OEM quality fitment
High flow cleanable Turner Motorsport air filter
+7 WHP / +14 lb-ft of torque!
Lowers intake temperatures by 13 degrees over running an open intake.
Special care instructions:
If clear coat gets scratched, reseal affected area with clear coat touch up
To retain UV resistance and protect finish, wax with high quality carnuba wax
Want more in-depth details? We’ve got you covered below:
Carbon Fiber Intake Lid:
2x2 twill weave carbon fiber, protected by a clear coat for UV protection
Reduces intake temperatures by 13 degrees compared to running an open intake
Carbon Fiber Intake Tube:
2x2 twill weave carbon fiber, protected by a clear coat for UV protection
Ovaled intake tube design allowing
MAF scaling matches factory intake
MAF sensor flange machined from 6061-T6, black anodized and bonded to the intake tube directly in the center of the tube for accurate temp/airflow reading
Vacuum line port machined from 6061-T6, black andozed and bonded to intake tube
Integrated carbon flange allows secure mounting of intake tube to our heat shield
Heat shield:
One piece design manufactured from 12 gauge 5052 aluminum
Wrinkle black powder coated
Supplied gold heat shield tape
High Flow Air Filter:
Conical high flow cleanable air filer
8 ply oiled cotton gauze
Bellmouth filter flange inlet reduces turbulence and maximizes flow
We are proud to present you with our long-awaited Turner Motorsport N20 Intakes for F3x Chassis! Like all of our Turner Motorsport products, our N20 intake was CAD-Designed in-house to give you the best performing, most beautiful intake we could possibly imagine for your N20 powered BMW. The best part? Our design seamlessly integrates with OEM ducting and stock mounting locations to give you a simple install and an OEM+ fit and finish. We believe this is the way the N20 engine bays should have come from the factory. It’s time to ditch all that plastic. Our higher flow filter and intake design reduced post filter pressure by 0.2 psi over stock, allowing for gains across the entire RPM range - this reduced pressure drop also results in less stress on your turbo. If you are looking for our Turner Motorsport Open Carbon Intake, see T#:811408
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We are proud to present you with our long-awaited Turner Motorsport Carbon Fiber B58 Intakes. Like all of our Turner Motorsport products, our B58 intake was CAD-Designed in-house to give you the best performing, most beautiful intake we could possibly imagine for your B58 powered BMW. The best part? Our design seamlessly integrates with OEM ducting and stock mounting locations to give you a simple install and an OEM+ fit and finish. We believe this is the way the B58 engine bays should have come from the factory. It’s time to ditch all that plastic.
Our higher flow filter and intake design reduced post filter pressure by 0.2 psi over stock, allowing for gains across the entire RPM range - this reduced pressure drop also results in less stress on your B58’s turbo. Our enclosed intake also lowers your intake temperatures by 13 degrees over running an open intake.
If you are looking for our Turner Motorsport Open Carbon Intake, see T#638290
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We are proud to present you with our long-awaited Turner Motorsport Carbon Fiber B58 Intakes for F2x/F3x Chassis! Like all of our Turner Motorsport products, our B58 intake was CAD-Designed in-house to give you the best performing, most beautiful intake we could possibly imagine for your B58 powered BMW. The best part? Our design seamlessly integrates with OEM ducting and stock mounting locations to give you a simple install and an OEM+ fit and finish. We believe this is the way the B58 engine bays should have come from the factory. It’s time to ditch all that plastic. Our higher flow filter and intake design reduced post filter pressure by 0.2 psi over stock, allowing for gains across the entire RPM range - this reduced pressure drop also results in less stress on your B58’s turbo. If you are looking for our Turner Motorsport Enclosed Carbon Intake, see T#638252
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BMW B58 Replacement Filter For High Flow Carbon Fiber Intake is designed to enhance the performance of BMW's B58 engine by providing superior filtration and airflow. This high-quality replacement filter is engineered for use with high-flow carbon fiber intakes, ensuring optimal engine performance and longevity.
Enhanced Airflow: Increases the volume of air entering the engine for improved horsepower and torque.
Superior Filtration: High-performance filtration media traps contaminants while allowing maximum airflow.
Durable Construction: Crafted with high-quality materials for long-lasting performance and reliability.
Easy Maintenance: Designed for straightforward replacement, maintaining the efficiency of your high-flow intake system.
Perfect Fit: Specifically engineered for the BMW B58 engine, ensuring compatibility and performance.
This replacement filter is a vital component for BMW enthusiasts looking to maximize the efficiency and effectiveness of their high-flow carbon fiber intake systems.
Airflow efficiency and maximizing the potential of the stock intake design were the keys to development for the Dinan N55 intake. Dinan improves on the factory air box system by delivering more cool, dense air. The increased amount of air feeds into dual larger volume airbox complete with a larger cone filter that elicit a slightly more audible and sporty tone over its stock counterpart. Dinan claims 10hp and 15ft-lb torque gain with this kit.
For over 35 years, Dinan has been America's premier tuning company, pioneering advancements in BMW modification while retaining a focus on balanced performance that preserves the original character and driving feel that a BMW offers. When you install a Dinan part on your car, know that it's not only carefully developed and tested, but that Dinan stands behind it with a four year, 50,000-mile warranty. Dinan believes so fully in their “total package” approach that once your car has been fitted with enough of their parts, they celebrate your conversion from stock to Dinan with an exclusive trunk badge, displayed proudly by BMW enthusiasts everywhere. This intake is worth 3 points toward your Dinan badge.
Fitment note: Convertible models require modification to a factory chassis brace. Detailed instructions are included.
This item fits the following BMWs: 2014+ F22 F23 BMW M235i M235iX 2012-2015 F30 BMW 335i 335i X-Drive - Sedan 2012-2016 F32 BMW 435i 435i X-Drive - Coupe 2013-2016 F33 BMW 435i 435i X-Drive - Convertible 2012-2015 F34 BMW 335i 335i X-Drive - Gran Turismo 2012-2016 F36 BMW 435i 435i X-Drive - GranCoupe
Following in the footsteps of the immensely popular and heralded intake for the BMW N55 engine, the next generation of 6 cylinder intake takes the same path to success. Improve upon the factory design by increasing flow via a larger air box and filter element thereby improving throttle response and lessening the strain on the turbocharger for maximum efficiency. While box and filter enlargement and redesign is a major factor in ultimately producing a more potent intake they are not the only variables in creating a more efficient design either. The devil is in the details which is where Dinan thrives. Coupled with maintaining Dinan's standard practice of utilizing a sealed system to ensure as much cold, outside air as possible is employed Dinan engineers focused their attention on the intake pipe itself where numerous improvements could be made. In factory configuration the intake tube comes complete with baffling and a small helmholtz chamber to reduce unwanted sound. As a byproduct these features also cause a more turbulent air flow path which robs the factory system of potential power. These 2 specific details are diametrically opposed to our intended markets desires so the removal of these features was paramount. Through numerous iterations a carbon fiber intake tube was developed that eliminated flow disruptions and allowed the natural sound of an unimpeded intake tract to sing. All told this thorough methodology of design allows the Dinan carbon fiber cold air intake for the B58 engine to elicit gains of 15 HP and 13 TRQ @ 6000 RPM on a completely stock vehicle. An impressive feat on today's turbocharged engines.
Not to be outdone by the performance side of the equation the B58 intake also is completely made up of carbon fiber unlike 6 cylinder intakes of the past where a mix of materials was used. Not only is the intake completely carbon construction but the quality of the material has been improved over previous generations as well. While looks are surely important, and this piece has that department covered in spades, the improved construction and coating also guarantees that the appearance of the engine bay with the Dinan intake will not be marred over time. Built to present well, perform well, and last the duration, the Dinan B58 carbon fiber cold air intake is a modification that is a must for any high high performance build.
Benefits of the Dinan Carbon Fiber High Flow Air Intake for the F22/F23 M240i, F30/F34 340i and F32/F33/F36 440i:
More Power: +15 HP & +13 lb-ft of torque @ 6000 RPM without additional modifications (13 WHP / 11 WTQ)
Sportier Sound
Improved throttle response
Larger volume air box (30% larger than stock) that completely seals
34% increase in filter area (stock: 76.3in², Dinan: 102.1in²)
Optimized carbon fiber intake tube
Free flowing injection molded Air Mass Meter housing (8% larger then stock)
Revitalize your BMW's performance with the Dinan Replacement Air Filter designed for Dinan air intake model D760-0038. Whether your filter is dirty, damaged, or lost, this replacement ensures the restoration of Dinan's expected performance and maintains the optimal functioning of your BMW.
For more than 35 years, Dinan has been a leading tuning company in America, specializing in BMW modifications that prioritize balanced performance while preserving the original driving experience. Every Dinan part is meticulously developed, rigorously tested, and backed by a comprehensive four-year, 50,000-mile warranty. Dinan's commitment to a holistic enhancement approach is symbolized by an exclusive trunk badge awarded to enthusiasts who embrace a complete Dinan conversion, showcasing their dedication to elevated performance.
Following in the footsteps of its big brother on the B58 engine, the 4 cylinder intake takes the same path to success. Improve upon the factory design by increasing flow via a larger airbox and filter element thereby improving throttle response and lessening the strain on the turbocharger for maximum efficiency. While box and filter enlargement and redesign is a major factor in ultimately producing a more potent intake they are not the only variables in creating a more efficient design either. The devil is in the details which is where Dinan thrives. Coupled with maintaining Dinan's standard practice of utilizing a sealed system to ensure as much cold, outside air as possible is employed Dinan engineers focused their attention on the intake pipe itself where numerous improvements could be made. In factory configuration, the intake tube comes complete with baffling and a small helmholtz chamber to reduce unwanted sound. As a byproduct, these features also cause a more turbulent air flow path which robs the factory system of potential power. These 2 specific details are diametrically opposed to our intended markets desires so the removal of these features was paramount. Through numerous iterations, a carbon fiber intake tube was developed that eliminated flow disruptions and allowed the natural sound of an unimpeded intake tract to sing. All told this thorough methodology of design allows the Dinan carbon fiber cold air intake for the B46/B48 engine to elicit gains of 6 HP and 6 TRQ at 5000 RPM on a completely stock vehicle. An impressive feat on today's turbocharged engines.
Not to be outdone by the performance side of the equation the B46/B48 intake also is completely made up of carbon fiber unlike 4 cylinder intakes of the past where a mix of materials was used. Not only is the intake completely carbon construction but the quality of the material has been improved over previous generations as well. While looks are surely important, and this piece has that department covered in spades, the improved construction and coating also guarantee that the appearance of the engine bay with the Dinan intake will not be marred over time. Built to present well, perform well, and last the duration, the Dinan B46/B48 carbon fiber cold air intake is a modification that is a must for any high-performance build.
Benefits of the Dinan Carbon Fiber High Flow Air Intake for the F22/F23 230i, F30/F31/F34 330i, and F32/F33/F36 430i:
More Power: +6 HP & +6 lb-ft of torque at 5000 RPM Sportier Sound Improved throttle response Larger volume air box (30% larger than stock) that completely seals 34% increase in filter area (stock: 76.3in², Dinan: 102.1in²) Optimized carbon fiber intake tube Free flowing injection molded Air Mass Meter housing (over 20% larger than stock) Quick and easy installation
Bespoke. A word that perfectly encapsulates the mindset of Eventuri. Performance parts with an obsessive attention to detail and an unyielding dedication to quality. Perfectly designed to maximize the potential of each individual vehicle and meticulously refined through rigorous testing. Eventuri offers a product that stands in a class of its own and delivers outstanding power increases without making false claims or exaggerating dyno numbers. With patented designs such as a custom velocity stack filter housing and improved ducting that guides the flow of air into the engine, to the breathtaking uniformity of the weave pattern. These are performance products for the truly discerning customer.
When it comes to styling a vehicle the proper look is one that compliments, not cheapens the inherent design. Race inspired carbon fiber completes the look and style of every BMW M-powered model and Eventuri delivers on an entirely new level. Instead of simply offering black carbon and yellow kevlar that has become the norm, Eventuri has stepped things up by offering their carbon/kevlar accessories in multiple colors. Now you can choose between Blue, Red, Orange and Yellow weave to further set your ride apart from the pack.
Performance Increase : 12-15hp, 14-18ft-lb
The B58 Eventuri intake system is another example of a “Complete System” principal. It demonstrates the perfect balance between allowing for unrestricted airflow with our open filter housing whilst maintaining low IAT by cold air saturation with our scoop and shield combination. Every detail has been meticulously developed from the prepreg carbon pieces to the double layer heat shields. This intake sets a new benchmark in design and craftsmanship for the B58 platform.
The B58 Eventuri system uses a Patent Pending Carbon fiber Housing which provides an aerodynamically efficient airflow path from the filter to the turbo. Not just another cone filter with a heat shield but a unique design which invokes the Venturi affect and maintains laminar flow conditions to reduce the drag on the turbo.
The filter housing comprises of a high flow filter, aluminium cowl, laser cut bracket, carbon heat shroud and the carbon pod itself, which extends to incorporate the MAF sensor and turbo tube. The carbon pod shrouds the reverse mounted filter and smoothly shapes the airflow down to the integrated MAF intake tube. This smooth reduction in cross sectional area invokes the Venturi effect where the airflow accelerates whilst maintaining laminar conditions. It can be thought of as a large velocity stack. The carbon filter housing and the inlet tube have been integrated to be one continuous piece. This reduces the number of internal interfaces and allows for smoother airflow to the turbo. The diameter of the tube smoothly transitions from the required diameter at the MAF sensor end to the larger diameter of the turbo inlet.
A lot of attention was placed on the heat shielding since the intake is located next to the exhaust manifold. For this Eventuri used a double layer main shield with a silver finish on the exhaust side and black on the intake side. The silver layer reflects radiant heat from the exhaust and the black layer absorbs and radiant heat on the inlet side. The air gap between the two layers acts as an insulator to stop the conductive heat spreading to the inner layer.
Each intake system includes:
Prepreg Carbon Filter Housing and integrated MAF tube
Bespoke. A word that perfectly encapsulates the mindset of Eventuri. Performance parts with an obsessive attention to detail and an unyielding dedication to quality. Perfectly designed to maximize the potential of each individual vehicle and meticulously refined through rigorous testing. Eventuri offers a product that stands in a class of its own and delivers outstanding power increases without making false claims or exaggerating dyno numbers. With patented designs such as a custom velocity stack filter housing and improved ducting that guides the flow of air into the engine, to the breathtaking uniformity of the weave pattern. These are performance products for the truly discerning customer.
When it comes to styling a vehicle the proper look is one that compliments, not cheapens the inherent design. Race inspired carbon fiber completes the look and style of every BMW M-powered model and Eventuri delivers on an entirely new level. Instead of simply offering black carbon and yellow kevlar that has become the norm, Eventuri has stepped things up by offering their carbon/kevlar accessories in multiple colors. Now you can choose between Blue, Red, Orange and Yellow weave to further set your ride apart from the pack.
The N55 intake system is a perfect example of Eventuri's “Complete System” principal. It demonstrates the perfect balance between allowing for unrestricted airflow with an open filter housing and cold air saturation with proprietary scoop and duct combination. Every detail has been meticulously developed from the prepreg carbon pieces to the precision bracket work. This intake sets a new benchmark in design and craftsmanship for the N55 platform.
The Eventuri system uses a Patent Pending Carbon fibre Housing which provides an aerodynamically efficient airflow path from the filter to the MAF tube. Not just another cone filter with a heat shield but a unique design which invokes the Venturi affect.
The filter housing comprises of a high flow filter, aluminium cowl, laser cut bracket and the carbon pod itself. The carbon pod shrouds the reverse mounted filter and smoothly shapes the airflow down to the intake tube. This smooth reduction in cross sectional area invokes the Venturi effect where the airflow accelerates whilst maintaining laminar conditions. It can be thought of as a large velocity stack.
Each intake system includes:
Prepreg Carbon Fiber Venturi Housing
High Flow Double Cone Air Filter
Aluminium Cowl for smooth airflow entry
Prepreg Carbon Fibre Intake Tube with integrated MAF Sensor Mount
Prepeg carbon Fibre Air Scoop
Laser Cut Intake Duct
Laser Cut Stainless Steel Brackets
High quality Silicone couplers with BMW specification hose clamps
Looking for more sound than what can be attained from the standard Dinan closed box intake for F2x/F3x B58 powered vehicles and don't want to sacrifice all the performance gains or the beautifully crafted carbon fiber design in the process? This semi-open variant of the same intake meets those demands using a revised lid with an additional auditory port so those intoxicating turbo noises can be more easily heard. When paired with the optional turbo inlet the full intake tract to the turbo is effectively replaced for further audio enhancement. Beyond the additional sound opening the semi-open intake takes the same path to success as its closed box counterpart. Improve upon the factory design by increasing flow via a larger airbox and filter element thereby improving throttle response and lessening the strain on the turbocharger for maximum efficiency. While box and filter enlargement and redesign are major factors in ultimately producing a more potent intake, they are not the only variables in creating a more efficient design either. The devil is in the details which is where Dinan thrives. Dinan engineers focused their attention on the intake pipe itself where numerous improvements could be made. In factory configuration, the intake tube comes complete with baffling and a small Helmholtz chamber to reduce unwanted sound. As a byproduct, these features also cause a more turbulent airflow path that robs the factory system of potential power. These 2 specific details are diametrically opposed to our intended market's desires so the removal of these features was paramount. Through numerous iterations, a carbon fiber intake tube was developed that eliminated flow disruptions and allowed the natural sound of an unimpeded intake tract to sing. All told this thorough methodology of design allows the Dinan carbon fiber intake for the B58 engine to elicit gains of 15 HP and 13 TRQ 6000 RPM on a completely stock vehicle. An impressive feat on today's turbocharged engines. Not to be outdone by the performance side of the equation, the B58 intake also is completely made up of carbon fiber unlike 6-cylinder intakes of previous generations where a mix of materials were used. Not only is the intake completely carbon construction but the quality of the material has been improved as well. While looks are surely important, and this piece has that department covered in spades, the improved construction and coating also guarantees that the appearance of the engine bay with the Dinan intake will not be marred over time. Built to elicit a more pronounced sound, imbue the engine bay with some carbon class, perform, and last the duration-- the Dinan semi-open B58 carbon fiber intake is a modification that is a must for any enthusiast that places sound atop their requirements list. Features: More Power: + 15 HP @ 6000 RPM & + 13 lb-ft @ 6000 RPM (+ 13 WHP & + 11 WTQ) without additional modifications A pronounced sporty sound courtesy of a semi-open design Improved throttle response Larger volume air box (30% larger than stock) for increased breathability 34% increase in filter area (stock: 76.3in², Dinan: 102.1in²) for optimum flow Optimized carbon fiber intake tube Free flowing injection molded Air Mass Meter housing (8% larger then stock) Quick and easy installation 50 State Emissions Legal (partial application list): CARB EO D-176-56 (2019-21 F2x/F3x M240i/340i/440i Only)
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Looking for more sound than what can be attained from the standard Dinan closed box intake for F2x/F3x B46/B48 powered vehicles and don't want to sacrifice all the performance gains or the beautifully crafted carbon fiber design in the process? This semi-open variant of the same intake meets those demands using a revised lid with an additional auditory port so those intoxicating turbo noises can be more easily heard. Beyond the additional sound opening the semi-open intake takes the same path to success as its closed box counterpart. Improve upon the factory design by increasing flow via a larger airbox and filter element thereby improving throttle response and lessening the strain on the turbocharger for maximum efficiency. While box and filter enlargement and redesign are major factors in ultimately producing a more potent intake, they are not the only variables in creating a more efficient design either. The devil is in the details which is where Dinan thrives. Dinan engineers focused their attention on the intake pipe itself where numerous improvements could be made. In factory configuration, the intake tube comes complete with baffling and a small Helmholtz chamber to reduce unwanted sound. As a byproduct, these features also cause a more turbulent airflow path which robs the factory system of potential power. These two specific details are diametrically opposed to our intended market's desires, so the removal of these features was paramount. Through numerous iterations, a carbon fiber intake tube was developed that eliminated flow disruptions and allowed the natural sound of an unimpeded intake tract to sing. All told this thorough methodology of design allows the Dinan carbon fiber intake for the B46/B48 engine to elicit gains of 6 HP and 6 TRQ at 5000 RPM on a completely stock vehicle. Not to be outdone by the performance side of the equation, the B46/B48 intake also is completely made up of carbon fiber unlike 4-cylinder intakes of previous generations where a mix of materials were used. Not only is the intake completely carbon construction but the quality of the material has been improved as well. While looks are surely important, and this piece has that department covered in spades, the improved construction and coating also guarantees that the appearance of the engine bay with the Dinan intake will not be marred over time. Built to elicit a more pronounced sound, imbue the engine bay with some carbon class, perform, and last the duration-- the Dinan semi-open B46/B48 carbon fiber intake is a modification that is a must for any enthusiast that places sound atop their requirements list. Features: More Power: + 6 HP @ 5000 RPM & + 6 lb-ft @ 5000 RPM (+ 5 WHP & + 5 WTQ) without additional modifications A pronounced sporty sound courtesy of a semi-open design Improved throttle response Larger volume air box (30% larger than stock) for increased breathability 34% increase in filter area (stock: 76.3in², Dinan: 102.1in²) for optimum flow Optimized carbon fiber intake tube Free flowing injection molded Air Mass Meter housing (ove 20% larger then stock) Quick and easy installation 50 State Emissions Legal (partial application list): CARB EO D-176-56 (2019-21 F2x/F3x 230i/330i/430i Only)
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