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#1 most affordable mod for HUGE HP gains in your M3! (Loud too)

Looking to make a MAJOR difference in power on your E92 M3? E9X of any sort needs more power, right? Well one of the biggest restrictions when it comes to your car would be in the primary cats.


Doing a cat delete and adding test pipes will give you a crazy amount of horsepower gain paired with a tune. Plus, your car will sound amazing. Throttler response goes up, sound is deeper and overall driving experience is increased.


This is one of the most affordable ways to make your car louder and increase horsepower for your E9X M3. Open up that S65!!!


You can get test pipes here on Mashimarho's website

Use code "M3List" to save money on your order!



FREE SHIPPING within the 48 states!



With not enough performance mods available for the E9X M3, we offer the catless test pipes. Removing restriction will automatically increase performance gains on any car. By removing the catalytic converter, you will have increase airflow through the exhaust. This will also increase sound and a little smell. By running catless you may find gains upwards of 25 hp and 25 tq.


By eliminating the restrictive 400 cell catalytic converters in the factory downpipes, back pressure is reduced significantly which results in an increase in power & a more aggressive exhaust note. These bypass pipes are constructed from mandrel bent, 304 grade stainless steel and are designed to work with the OEM exhaust. Welding is not required for installation, just cut and bolt into place using supplied exhaust clamps.


Professional installation recommended.

Made for E90,E92,E93 M3.

Tune required to eliminate the CEL that may appear.

Made for off road use only.



Use code "M3List" to save money on your order!

Thanks for looking!

M3List





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