Street Series Stainless Steel Cat-Back Exhaust System by MagnaFlow®, MODERATE SOUND. Dual Split Rear Exit. 3" Tubing. 5" x 8" x 14" Muffler. 4" Polished Stainless Tip. The Street Series is designed for customers seeking ...

Looking to increase the power on your BMW 135i and 335i with the N55 single turbo engine. Install the Active Autowerke 135i N55 Downpipe and unleash the true power that is hidden in your BMW 135i and 335i. The turbo is often described as a device ...

The Active Autowerke BMW E46 M3 Header is designed to increase exhaust flow without losing power which can sometimes be a tricky proposition. These headers are developed to create optimum flow and eliminate restriction that rob much desired ...

High performance drop-in replacement for the factory air filter; fits OEM Porsche 986 Boxster air box for improved airflow and performance.                               ...

Dinan's Free Flow Exhaust for the 3 series models provides increased flow for power gains without the excessive noise associated with typical ''performance'' mufflers. The Dinan® exhausts feature rigid and durable muffler ...

APR now has a full 3" stainless steel, mandrel bent, exhaust for the 225hp TT Quattro. APR's TT Exhaust is a stainless steel, mandrel bent, turbo-back exhaust. Our exhaust begins at the factory turbocharger with a beautifully shaped ...

APR's TT Exhaust is a stainless steel, mandrel bent, cat-back exhaust. Our exhaust begins after the factory catalytic converter with a 2.5" pipe, and continues back to the muffler and two elegant semi-oval tips. This exhaust really wakes up ...

Special Note Does not fit vehicles with M-Aerodynamic rear bumper. Factory computer-controlled exhaust valve is eliminated. Dinan® engineers designed the F30 BMW 335i exhaust to improve exhaust flow by reducing back pressure, resulting in ...

Product Description Dinan's free flow exhaust for the 1 Series M is sporty, just as it should be. Improving exhaust flow and adding a great sporty sound that is aggressive under hard acceleration with less drone than stock. Improve performance ...

Product Description Dinan's free flow exhaust for the 1 Series M is sporty, just as it should be. Improving exhaust flow and adding a great sporty sound that is aggressive under hard acceleration with less drone than stock. Improve performance ...

This version of the Free Flow Exhaust for the 1 Series M is 100% bolt-on with no cutting and no welding. Improving exhaust flow and adding a great sporty sound that is aggressive under hard acceleration with less drone than stock. Improve ...

Product Description This version of the Free Flow Exhaust for the 1 Series M is 100% bolt-on with no cutting and no welding. Improving exhaust flow and adding a great sporty sound that is aggressive under hard acceleration with less drone than ...

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