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For RS owners who want real power without going fully catless, the Untd. Performance 200 Cell Downpipe is the perfect balance of flow, sound, and street-friendly performance. Designed for the twin-turbo 4.0T V8 in the Audi C8 RS6 and RS7, this high-performance downpipe replaces the restrictive factory setup with a premium 200 cell sport catalytic converterโunlocking sharper throttle response, stronger midrange torque, and a deeper, more aggressive tone.
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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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Elevate the power and presence of your S-Class AMG with the Untd. Performance 200 Cell Downpipe w/ Heat Shield. Engineered for the M177 4.0L twin-turbo V8 in the W222 S63, this downpipe is designed to drastically improve flow, reduce turbo lag, and enhance exhaust toneโwhile keeping things refined with a high-flow catalytic converter and integrated thermal shielding.
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Strike the perfect balance between performance and drivability with the Untd. Performance 200 Cell High-Flow Catted Downpipe w/ Heat Shield for the Audi C8 RS6 and RS7. Designed for enthusiasts who want serious gains without going fully catless, this downpipe replaces the factory units with ultra-efficient 200 cell high-flow catalytic convertersโdelivering major improvements in flow, sound, and power while maintaining a more refined tone and improved emissions compatibility.
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- One Piece – 100% Mandrel Bent and TIG welded
- 200 Cell – High Flow Cat
- With Heat Shield
- Constructed of top quality 304 Stainless Steel
- Bolt-on installation
- Includes Gaskets & Bolts
- Improved exhaust note
- Improved exhaust flow
- Increased HP and Torque
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Maximize the performance of your Mercedes-Benz C63 AMG with the Untd. Performance 3.5โณ Catless Downpipe. Engineered for the M177 4.0L Bi-Turbo V8, this catless downpipe is designed to eliminate the restrictive factory catalytic converters, allowing for improved exhaust flow and reduced backpressure. With the larger 3.5โณ diameter, this downpipe ensures optimal turbo efficiency, quicker spool times, and a massive increase in horsepower and torqueโtransforming your W205 C63 AMG into a track-ready performance machine.
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Unlock the full power potential of your Mercedes-Benz C63 AMG with the Untd. Performance 3.5โณ Catless Downpipe with Shield. Specifically designed for the w205 M177 4.0L Bi-Turbo V8 engine, this high-performance downpipe eliminates the restrictive factory catalytic converters, allowing for increased exhaust flow, reduced backpressure, and quicker turbo spool. Paired with integrated heat shielding, this downpipe delivers not only improved performance but also enhances the driving experience with a more aggressive exhaust note and optimal engine temperatures.
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The Untd. Performance Air Cooler / Intercooler Kit for the Audi B9 RS4/RS5 2.9T EA839 is engineered for maximum cooling efficiency and reliability under high boost conditions. Featuring a high-capacity core and optimized flow design, it reduces intake air temperatures to maintain consistent power delivery. Built with premium materials for durability, this kit supports both stock and tuned applications. Perfect for enthusiasts seeking improved performance and heat management.
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Unlock the full potential of your Ferrari 488 with the Untd. Performance Cat-Back Exhaust, designed for the discerning enthusiast who demands both power and sound. Made from high-quality 304 stainless steel, this exhaust system is engineered for superior durability, resistance to corrosion, and a sleek, refined look that enhances the beauty of your Ferrari.
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Tap into the raw performance of Audiโs 3.0T V6 with the Untd. Performance Catless Downpipe. Designed to free your exhaust from restrictive factory cats, this system sharpens throttle response, improves turbo efficiency, and unleashes a more aggressive exhaust note. Built from motorsport-grade stainless steel, itโs a direct-fit upgrade that transforms both sound and performance.
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Unleash the full potential of your EA839-powered Audi with the Untd. Performance Catless Downpipe for B9 S4, S5, and SQ5. Built to eliminate factory restrictions and maximize exhaust flow, this downpipe transforms your 3.0T V6 into a sharper, harder-pulling performance machine. Expect faster turbo spool, a more aggressive exhaust tone, and real-world power gainsโperfect for enthusiasts running tunes, upgraded intakes, or chasing maximum performance on and off the track.
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Unleash hidden power from your turbocharged 2.0L with the Untd. Performance Catless Downpipe for the Mercedes-Benz C300 and E300 (M274). Built for maximum flow and throttle response, this upgrade eliminates the restrictive factory catalytic converterโdelivering quicker spool, sharper throttle feel, and an aggressive, turbocharged sound that completely transforms the driving experience.
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