+ Front exhaust section only+ Replaces secondary catalytic converters (for race use only)
+ Lighter weight
+ More power
+ Eliminates possibility of clogged or damaged cats
+ 304 stainless steel
+ Made by MagnaFlow for BimmerWorld
This front exhaust section was developed for our no-holds barred track conversion M4 GTMore project. Loosely based on the factory GT4 exhaust, our front section eliminates the factory secondary catalytic converters found on the street car. This makes the system lighter and freer-flowing. It also eliminates the secondary cats which are likely to be a failure point when used for dedicated track or race use. Twin 6" resonators are included to tune and dampen sound. This section will only be sold for actual race or dedicated track vehicles - seriously.
This front section was developed along with the full GTMore race exhaust but we made it available separately if you choose to use it with a different axle-back exhaust. We have not tested fitment with any other exhausts so some fabrication or modification may be required.
Made in the USANotice of Emissions Non-Compliance.
This product is intended only for racing vehicles that may never be used, or registered or licensed for use, upon a public highway. Removing, disabling, or altering emissions equipment on a pollution-controlled road vehicle is illegal. Installing devices or software that trick, disable, or modify emissions controls and monitors on a pollution-controlled road vehicle is also illegal. This product is sold only for racing, competition, track, hobby, or other off-road use. It's use is prohibited in any motor vehicle that is subject to emissions inspection or control. It is not legal for installation or use on any pollution controlled motor vehicle in any state, province, or jurisdiction governed by, or which has adopted, CARB or EPA regulations. BimmerWorld may confirm a customer's racing license, entry, track participation, and we may ask for photos or proof of a permanent race car build. We reserve the right to cancel part(s) that are not for legitimate racing or track purposes.
F80 (2015-2018) > M3 (2015-2018)
F82 / F83 (2015-2020) > M4 (2015-2020)
F82 / F83 (2015-2020) > M4 GTS