The Alpha M5 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 look no further!
Computer Aided Design Yields Maximum Results
Each Alpha M5 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 maximum output.
Unparalleled Fitment Through Proper Engineering
The Alpha M5 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.
Big increases in power throughout the powerband
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
300 cell race catalytic converter (optional)
Replacement gaskets are included
We recently had a chance to dyno the IND M5 at AMS. The catless downpipes coupled with an Eisenmann Race exhaust system have given the car a very healthy increase in power. Our dyno results should not come as a surprise to any owners of catless F10 M5s, but are rather a confirmation of what most already know- the AMS catless downpipes completely transform the car! Our testing found a peak power figure of 586 horsepower at the wheels! We’ve overlaid this new test run over our original baseline run with a 527 wheel horsepower result- the power gain is impressive throughout the RPM range.
Performance mods during dyno test:
AMS Performance catless downpipes
Eisenmann Center pipes
Eisenmann Race 4x102mm tips
Catless downpipes with Eisenmann Race exhaust:
Catted Downpipes with stock exhaust:
Please note that certain aftermarket exhaust systems may not comply with applicable California laws and regulations, and may therefore be prohibited for use on California highways or roads, or on roads or vehicles otherwise subject to emissions control requirements.
AMS exhaust systems for automobiles and motorcycles mounted downstream of the catalytic converter (also known as “cat-back systems”) are considered “replacement parts” in California by the California Air Resources Board (CARB), and do not require an exemption or executive order from CARB to be sold in California. However, California prohibits the use of any aftermarket exhaust system that modifies, removes or replaces original equipment catalysts, unless CARB has issued an Executive Order as to such part or system.
Further, AMS parts or exhaust systems used or intended for use on “racing vehicles” (i.e. a competition vehicle used exclusively for competition on closed-course circuits) do not require an exemption or Executive Order from CARB to be sold in California. However, such parts are prohibited from use on California public highways or roads, even if occasionally used “off-road.”
IND Distribution nor any of its subsidiaries make any representation that the products comply with the air and/or noise emissions laws, or labeling laws, of any jurisdiction. The purchasers are entirely responsible for informing themselves of the applicable laws where the products are to be used and to comply with those law.
EMISSIONS WARNING / USA:
Various U.S. states and the U.S. federal government have individual laws regulating the use of aftermarket exhaust parts and systems, especially as those parts and systems modify, remove, or replace original equipment catalysts. Please consult the appropriate laws in your area before installing any aftermarket part or system on your vehicle to ensure compliance with all applicable laws. Neither IND Distribution nor any of their subsidiaries or the sellers of the parts or systems make any representation that any of their parts or systems comply with any such laws.
EMISSIONS WARNING / California:
California laws prohibit the use of any aftermarket exhaust part or system that modifies, removes or replaces original equipment catalysts unless the California Air Resources Board (C.A.R.B.) has issued an Executive Order regarding such part or system or unless the part or system is exempted by being used only on racing vehicles on closed courses. IND Distribution nor any of their subsidiaries make any representation that any of their parts or systems has received such an Executive Order or that any of their parts or systems conform to the racing vehicles exemption. The purchasers are entirely responsible for informing themselves of applicable California laws and to comply with those laws.