BMW Exhaust Parts, Mufflers & Catalytic Converters for BMW 4 Series F33 (2014+)

BMW N54 N55 N63 S63 HJS V-Band Exhaust Clamp - Priced Each is designed for superior performance and reliability in exhaust system maintenance and upgrades. Engineered by Turner Motorsport, this high-quality clamp ensures a secure and leak-free connection in your BMW's exhaust system.

• Durable Construction: Made from premium materials to withstand high temperatures and harsh conditions, ensuring long-lasting performance.
• Precision Fit: Designed to fit perfectly with BMW N54, N55, N63, and S63 engines, offering a secure and reliable seal.
• Improved Exhaust Efficiency: Prevents leaks and maintains optimal exhaust flow, contributing to better engine performance and efficiency.
• Easy Installation: The V-band design allows for quick and easy installation or removal, simplifying exhaust system maintenance.
• Versatile Use: Ideal for both performance upgrades and routine repairs, making it a valuable addition to any BMW enthusiast's toolkit.

A new oxygen sensor can improve driveability and lengthen engine life. Ultimately, you achieve a smoother running engine that is more fuel efficient. Feedback from the oxygen sensor provides closed-loop control of the injected quantity of fuel for optimum air-fuel mixture, enabling virtually complete combustion to take place. Contaminants in gas and certain atmospheric conditions can drastically shorten the life of any oxygen sensor, therefore they should be checked with every periodic maintenance and changed if necessary.

This is the OEM Bosch oxygen sensor for BMW's with the N20 and N26 motors. This sensor is mounted in the catalytic converter in the rear most position. OEM replacement for BMW # 11787589122.

Bosch is one of the largest OEM producers of Genuine BMW and aftermarket parts in the world, providing parts for almost every major automotive manufacturer. Bosch has likely supplied many of the original electrical (and mechanical) parts for your BMW. Thanks to their quality, high durability, and reliability, you should expect a long service life from Bosch products.

As a leading source of high performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts.  All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!

Fits the following BMWs:
All models with the N20 or N26 motor

The Dinan sport muffler is designed to compliment the 328/428 and not overpower the driver and passengers with harsh tones. Dinan engineers their exhausts to sound great and be a natural fit to the character of the car as well as produce more power and torque. Dual 3.5" stainless tips engraved with the Dinan logo fill out the rear valence (choose either polished or satin black tips). Annoying highway drone has also been engineered out of the system. Dinan uses only 304 stainless steel in their systems for the maximum corrosion protection. This system replaces the factory rear mufflers at a pre-determined cut point on the stock exhaust, which makes for an easy installation and you can reinstall your original mufflers using factory hardware. Detailed installation instructions are included.

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. The Dinan sport muffler is worth 3 point towards your Dinan badge.

This item fits the following BMWs:
2012-2015 F30 BMW 328i 328i X-Drive - Sedan
2012-2015 F31 BMW 328i X-Drive - Touring Wagon
2012-2016 F32 BMW 428i 428i X-Drive - Coupe

Elevate your BMW's exhaust system with the Dinan High Flow Mid-pipe, delivering an aggressive tone to the stock setup. When paired with the Dinan exhaust, the sound is perfected into an irresistible aggressive growl. This full mid-section eliminates the factory center section, replacing it with straight-through 3.25" T304 stainless steel tubing. Experience improved flow, enhanced sound, and a weight reduction of 3 pounds.

• Achieve an aggressive tone with the stock system
• Perfected sound with Dinan exhaust for an aggressive growl
• Replaces factory center section for better flow
• Straight-through 3.25" T304 stainless steel tubing
• Enhanced performance and sound
• 3-pound weight reduction

For over 30 years, Active Autowerke has been the one to turn to for high-quality BMW performance products. Committed to enhancing the performance of BMWs through the highest quality products is what Active Autowerke is all about. 

The B46 downpipes are strategically engineered to virtually eliminate the immensely restrictive characteristics of the factory downpipes – therefore reducing radiant heat and increasing performance.

Features Include

NO CEL when using this downpipe

GESI EPA registered high flow and fully OBD2 compliant

Casted upper stainless steel V-Band for precise fitment

3 inch diameter piping allows for maximum power output

Quicker turbo spool

Rated for 500 to 850 hp applications

Withstands up to 1500° F

Can reach operational efficiency within 9 seconds of startup

Easily bolts-on – no cutting or welding required

Durable construction from TIG welded 304 stainless steel

Ultra high flow 400 cell per square inch catalyst

EPA certified for use on OBD2 vehicles (1996 and newer) except in California

304 stainless steel substrate in catalytic converter is furnace braised to the mantle for outstanding durability

GESi® proprietary precious metal loading technology ensures greatly reduced emissions

Both passengers and drivers are safe from harmful emissions and noise

Precise fitment

Made in Miami, Florida

Covered by 5 Year / 50,000 Mile Warranty (on shell and tube ends)

FITMENT NOTE: For G-Chassis models (G20, G22), the cutoff build date of 08/2020 is important as cars produced after that date have a downpipe with different bracket locations. Cars with a build date of 08/2020 and earlier have the brackets in a V configuration. Cars with a build date of 09/2020 and later have the brackets in a straight line and require Active Autowerke p/n 11-065G