ECS N54/N55 Cat-Back Exhaust, ECS Intake & Turner Ignition Coils
ECS Tuning N54/N55 Cat-Back Exhaust for BMW E9X Take your 335i or 335xi to the next level with a high-performance cat-back exhaust designed to invigorate your driving experience. Constructed from premium brushed stainless steel, this ECS cat-back exhaust isn’t just about cutting weight—it’s about delivering unrestrained performance with a refined, yet powerful tone. Expect a thrilling soundtrack that underscores every shift and acceleration, giving you that much-needed connection to the road.
This exhaust system is crafted with balance in mind, providing a potent sound without the excessive drone that disrupts highway cruising. Designed for the N54 and N55 engines, it integrates seamlessly with both stock and aftermarket downpipes. Featuring twin 2.5” mandrel-bent pipes and turbo-style mufflers, this exhaust offers increased flow, weight savings, and a deep, exhilarating tone that complements the BMW’s high-output turbocharged engine.
Why Upgrade?
Better Sound and Flow: A dual 2.5” mid-pipe setup leads back to lightweight, turbo-style mufflers. Designed for unrestricted flow, the exhaust enhances horsepower, torque, and throttle response. Signature Tips: Complete with dual black chrome 3.5” tips, this system not only sounds incredible but looks the part, too. Weight Savings: Shedding 37% of the weight, this exhaust replaces the heavy factory cat-back and lightens your load to support a sportier feel. Improved Performance: Reduced backpressure for smoother, more responsive acceleration. Precision Engineering
Design Technology: Using FARO ARM laser scanning and SolidWorks 3D CAD, this system is built for an exact fit. High-Quality Materials: T304 stainless steel construction with 1.25mm wall thickness, TIG-welded for durability. OEM Fitment: Stainless steel hangers are welded in OE locations for a seamless, factory-quality installation. Adjustability: Strategic slip joints make adjustments easy, so you achieve the ideal alignment for your setup. What’s Included?
Dual 2.5” mid-pipes and rear exhaust section High-flow turbo-style mufflers Complete mounting hardware and clamps Black chrome 3.5” exhaust tips Turner Motorsport Performance Ignition Coils
Boosted Performance: Enhanced spark energy translates to a stronger and more reliable combustion cycle. Direct Fitment: Engineered for seamless installation with your BMW’s ignition system. Distinctive Turner Blue: Adds a stylish touch to your engine bay, making it look as good as it performs. Benefits at a Glance
Enhanced Exhaust Sound: Deeper, more aggressive note with minimized cabin drone. Lighter Build: 37% lighter than stock for added agility. Free Ignition Coils: Improved spark for consistent performance and fuel efficiency. Performance Ready: Fully compatible with both OEM and aftermarket setups. Turn heads, enjoy the ride, and make the most out of your BMW’s power with this ECS Tuning N54/N55 Cat-Back Exhaust and Turner Ignition Coil combo—built for enthusiasts who demand the best in performance and style.
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This product was last offered at the strikethrough price on
05-05-2026
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Product Details
ECS Tuning N54/N55 Cat-Back Exhaust for BMW E9X
Take your 335i or 335xi to the next level with a high-performance cat-back exhaust designed to invigorate your driving experience. Constructed from premium brushed stainless steel, this ECS cat-back exhaust isn’t just about cutting weight—it’s about delivering unrestrained performance with a refined, yet powerful tone. Expect a thrilling soundtrack that underscores every shift and acceleration, giving you that much-needed connection to the road.
This exhaust system is crafted with balance in mind, providing a potent sound without the excessive drone that disrupts highway cruising. Designed for the N54 and N55 engines, it integrates seamlessly with both stock and aftermarket downpipes. Featuring twin 2.5” mandrel-bent pipes and turbo-style mufflers, this exhaust offers increased flow, weight savings, and a deep, exhilarating tone that complements the BMW’s high-output turbocharged engine.
Why Upgrade?
- Better Sound and Flow: A dual 2.5” mid-pipe setup leads back to lightweight, turbo-style mufflers. Designed for unrestricted flow, the exhaust enhances horsepower, torque, and throttle response.
- Signature Tips: Complete with dual black chrome 3.5” tips, this system not only sounds incredible but looks the part, too.
- Weight Savings: Shedding 37% of the weight, this exhaust replaces the heavy factory cat-back and lightens your load to support a sportier feel.
- Improved Performance: Reduced backpressure for smoother, more responsive acceleration.
Precision Engineering
- Design Technology: Using FARO ARM laser scanning and SolidWorks 3D CAD, this system is built for an exact fit.
- High-Quality Materials: T304 stainless steel construction with 1.25mm wall thickness, TIG-welded for durability.
- OEM Fitment: Stainless steel hangers are welded in OE locations for a seamless, factory-quality installation.
- Adjustability: Strategic slip joints make adjustments easy, so you achieve the ideal alignment for your setup.
What’s Included?
- Dual 2.5” mid-pipes and rear exhaust section
- High-flow turbo-style mufflers
- Complete mounting hardware and clamps
- Black chrome 3.5” exhaust tips
Turner Motorsport Performance Ignition Coils
- Boosted Performance: Enhanced spark energy translates to a stronger and more reliable combustion cycle.
- Direct Fitment: Engineered for seamless installation with your BMW’s ignition system.
- Distinctive Turner Blue: Adds a stylish touch to your engine bay, making it look as good as it performs.
Benefits at a Glance
- Enhanced Exhaust Sound: Deeper, more aggressive note with minimized cabin drone.
- Lighter Build: 37% lighter than stock for added agility.
- Free Ignition Coils: Improved spark for consistent performance and fuel efficiency.
- Performance Ready: Fully compatible with both OEM and aftermarket setups.
Turn heads, enjoy the ride, and make the most out of your BMW’s power with this ECS Tuning N54/N55 Cat-Back Exhaust and Turner Ignition Coil combo—built for enthusiasts who demand the best in performance and style.
Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.
Prop 65 Warning
