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- Untd. Performace Catless Downpipe - Audi A3 2.0T TT Mk2 - VW GOLF 2.0T MK5 MK6
- Untd. Performance Catless After Downpipe - Porsche Panamera 971 2.9T 2018
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Maximize the power, performance, and sound of your BMW X5 M (F95) or BMW X6 M (F96) with the Untd. Performance Catted Downpipe. Designed for the S63 4.4T V8 engine, this downpipe features a 200-cell catalytic converter and an integrated heat shield. It provides a significant boost in exhaust flow, turbo spool efficiency, and horsepower, all while staying compliant with emissions regulations. Whether you’re tracking your BMW or pushing it on the street, this downpipe will enhance both your driving experience and vehicle performance.
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Transform your BMW X3M or X4M into a sharper, faster, and more aggressive machine with the Untd. Performance Catted Downpipe w/ Heat Shield. Built for the F97 and F98 platforms powered by the formidable 3.0L twin-turbo S58 engine, this downpipe delivers increased flow, improved turbo response, and a refined exhaust tone—while incorporating a high-flow catalytic converter and integrated thermal shielding for a street-friendly setup.
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- The 335d DPF delete is machined from T-304 high-grade stainless steel and are tig welded in house
- Sharper throttle response due to faster spool of the turbo
- Noticeable power gains, not to mention the much more aggressive exhaust note which sounds truly amazing
- Lower temperatures and less exhaust backpressure due to the relief of the turbocharger. Also, the cylinder charge is increased
- There is also a substantial weight saving in comparison to the factory catalytic converter
- Mandrel-bent for better gas flow and maximum internal size to ensure ultimate performance without the loss of mid-range torque.
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- Improve Engine Output and Efficiency, Give you an extra HPs, and increases torque
- Large diameter and free flow tubing for unrestricted flow, Making the exhaust air flow smooth, Designed for high-performance racing
- Made of High-Quality 16-gauge T-304 Stainless Steel with Computerized Mandrel-Bends
- All joints are TIG welded to prevent cracking and wear
- CNC Machine Flange for MAX Strength and Durability
- Flanges chrome plated for corrosion resistance
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This downpipe increases exhaust gas flow from this reduced restriction and allows for more power in the low to mid range RPM. More responsive throttle response.
Downpipe includes 2 O2 sensor bungs complete with screw in plugs
Downpipe comes with factory style flanges for a leak free install
Each down pipe comes with standard factory OEM type mounting flange to support the downpipe and reduce stress on mounting points
A15Easily to install. Mounts in factory mounting locations. Comes complete with gaskets and bolts. No modifications are needed. -
Enhance the power, response, and tone of your Porsche Panamera 971 3.0T with the Untd. Performance Front Pipe—engineered to optimize exhaust flow from the factory turbochargers. This high-performance upgrade replaces the restrictive OEM front pipe section with a smoother, larger-diameter design that improves turbo efficiency, reduces backpressure, and brings out a deeper, more refined exhaust note. It’s the ideal first step for unlocking hidden potential in your turbocharged V6.
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Unleash the full potential of your Infiniti Q50 or Q60 with the Untd. Performance Resonated Catless Downpipe, precision-engineered for the 3.0T VR30 twin-turbo V6 engine. This race-inspired upgrade eliminates restrictive factory catalytic converters to dramatically enhance exhaust flow, turbo response, and overall engine performance. With an integrated resonator, this version balances raw power with a refined exhaust note—making it ideal for drivers who want performance without excessive cabin drone.
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