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- Complete system included downpipes, connector pipes and stainless clamps
- 200 Cell High-Flow Cat
- With Heat Shield
- 100% mandrel bent and TIG welded
- Constructed of low carbon 304 Stainless Steel
- Fits within OEM heat shields
- Bolt-on installation
- Improved exhaust note
- Improved exhaust flow
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Take your BMW M2, M3, or M4 (G80/G82) to the next level with the Untd. Performance Catless Downpipe with Heat Shield, designed specifically for the high-performance S58 twin-turbo 3.0L inline-6 engine. Built for maximum flow, power, and sound, this downpipe is a must-have for enthusiasts looking to unleash the full potential of their modern M car. With integrated thermal shielding and a catless design, it’s made for drivers who demand unfiltered performance.
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Take your EA839-powered Audi B9 S4 or S5 to the next level with the Untd. Performance Catless Downpipe w/ Heat Shield. Designed for maximum power and thermal management, this upgrade removes the restrictive factory catalytic converter and adds integrated heat shielding for cooler engine bay temps and reliable long-term performance. Whether you’re building a weekend weapon or prepping for the track, this downpipe is the foundation of your power setup.
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Unlock the full potential of your BMW B58-powered F20, F30, F31, F32, F33, F34, F36, G30, G11, and G12 with the Untd. Performance Catless Downpipe with Heat Shield. Designed for enthusiasts looking to maximize power, turbo efficiency, and exhaust flow, this catless downpipe eliminates the restrictive factory catalytic converter while featuring an integrated heat shield to protect your engine bay from excessive heat. With a large 4.5″ diameter, this downpipe significantly enhances turbo performance, reduces turbo lag, and delivers a more aggressive exhaust note.
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Maximize the power and sound of your BMW M5 F90 or BMW M8 F91/F92/F93 with the Untd. Performance Catted Downpipe. Designed for the powerful S63 engine, this high-flow downpipe features a 200-cell high-performance catalytic converter and integrated heat shield for superior durability and performance gains. Crafted from high-quality SS 304 stainless steel, the downpipe is built to withstand the heat and pressure of high-performance applications while providing a noticeable boost in horsepower, turbo response, and exhaust sound.
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Elevate your BMW’s performance and sound without sacrificing refinement or emissions-conscious design with the Untd. Performance Catted Downpipe with Heat Shield, tailored for the S58-powered G80 M3, G82 M4, and G87 M2. Featuring a high-flow 200 cell catalytic converter and integrated heat shielding, this downpipe strikes the perfect balance between power, tone, and drivability—ideal for high-performance builds where quality and control matter.
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Unlock the full potential of your BMW M3 F80 or BMW M4 F82 with the Untd. Performance Catted Downpipe with Shield. Designed specifically for the S55 3.0L Twin-Turbo Inline-6 engine, this downpipe offers significant performance improvements while maintaining legal emissions compliance. Whether you’re a street enthusiast or a track-day warrior, this downpipe is the perfect upgrade to improve your vehicle’s power, turbo response, and overall driving experience, all while keeping emissions in check.
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Elevate the performance of your BMW M5 F10 or BMW M6 F13 with the Untd. Performance Catted Downpipe with Shield. Engineered for the BMW F10 M5 M6 S63 4.4L Twin-Turbo V8, this downpipe combines high-flow performance with emissions compliance. Featuring a 200-cell catalytic converter and a built-in heat shield, this downpipe provides substantial gains in turbo performance while maintaining a balance of sound and regulatory compliance. Whether you’re looking for better throttle response, increased power, or an aggressive exhaust note, this downpipe has you covered.