AMS BMW F10 M5 Alpha Performance Catless Downpipes


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The Alpha M5/M6 Downpipes are the ultimate solution for improving power, throttle response and exhaust note without sacrificing quality, fitment or design. If you are looking for the highest quality downpipes for your new M5/M6 look no further!

Computer Aided Design Yields Maximum Results

Each Alpha M5/M6 Downpipe features a smooth transition from their massive 3.5” inlet down to the 3” tubing for optimum flow. While our competitors choose a very short transition length which creates turbulence and hurts exhaust flow and power, our Engineering team implemented a longer length to give your M5 an additional 69hp and 63tq!

Unparalleled Fitment Through Proper Engineering

The Alpha M5/M6 downpipes aren’t something we quickly whipped up in a fabrication shop. These are properly designed and engineered using a CMM Laser Scanner for a perfect fit and space optimization. We took the time to integrate the factory O2 sensors, heat shielding and brackets for a clean and proper OEM-like installation. When you chose Alpha there is no need to hack up your prized possession.

The Difference Is In The Details

Another unique benefit is our racing catalytic converter option. These 300 cell count units provide nearly no disruption in flow and feature a staked in design to hold the catalyst firmly in place. Many competitors offer a low quality converter option to keep the cost low and profits high. Often these units fail due to poor construction and inferior materials. When you choose Alpha you will remain emissions compliant and worry free for years to come.

Exclusive Benefits
Big increases in power throughout the powerband
69hp and 63 ft-lbs gain over stock downpipes
Improved turbo & throttle response
Eliminate turbo lag
Exotic exhaust note
Massive 3.5″ primary inlets
Precise and proper fitment using factory heat shielding
Premium race catalytic converters
includes ALL necessary parts and hardware for installation
100% 304 stainless steel construction
.065″ thick tubing