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["Catless","Resonated Downpipes"]
ApexBuilt® BMW F87 M2C, F80 M3, & F82/F83 M4 Resonated Race Downpipes (S55, 2015-20)
Our All-New ApexBuilt® F8X M2/M3/M4 Resonated Catless Race Downpipes offer...
• Industry-leading build quality.
• Perfect fitment, guaranteed.
• 3.5" Vibrant style resonators to eliminate drone & rasp
• Drastically improved throttle response, quicker turbo spool, and an aggressive exhaust note.
• Estimated gains of 20-25+ wheel horsepower and 40-50+ TQ when installed on a vehicle that is not tuned.
• Estimated gains of 45+ HP and 60+ TQ over stock power levels when paired with an aftermarket ECU tune.
• TIG-welded T304 stainless steel construction, assembled by hand in Naples FL.
• Lifetime warranty.
PLEASE NOTE:
These these parts are for OFF ROAD / RACE USE ONLY. They are not 50 state legal. Any of our catless race downpipes WILL NOT be sold in, or shipped to, the state of California. We advise you to run a tune on your vehicle for best results.
Eric L.
Purchased and installed these on my M4CS over the weekend. They are great quality and installation was smooth and straight forward. Car sounds fantastic as well. Nice increase in volume over the factory downpipes but no additional rasp.
Jace P.
Not raspy, tone is perfect and there's no drone! I almost bought from ARM, but having seeing those in person the apex downpipes are so much higher quality it's not even close
