Quote:
Originally Posted by Chriskm3
mod done. quick and easy. Still detect drone between 1800 to 2200 rpm , above that all has been eliminated. great fix. Driving the car above 2200 rpm simulates stock sound. Thanks for the info. Next off to xpipe or test pipes. I asked if the muffler shop can produce a test pipe eliminating front cats, but was rejected due to emmisions clause. They are not allowed to remove cats due to emmision requirement.
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Good to hear! Keep driving and it will get better--that's what I've noticed. Yep, my shop told me the same thing but I am going to bring it to a performance shop to do it for me and do the tune myself. I will get an inspection before I do the test pipes so I have at least a year to play with it.
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2008 (07/08) E92 M3 BPM Stage II Tuned by Mike Benvo, 6MT, Turner Test Pipes, Magnaflow Custom Catback Exhaust (Magnaflow X Pipe, secondary cat delete, Aero Resonators and Helmholtz Chambers),Vorsteiner CF Lip, Hamann Style CF rear diffuser, CF Rear Decklid Spoiler, BMW Performance Kidney Grills, CF Side Grills, OEM GTS Wheels, K&N Drop-In Filter, GP Thunder 8k Angel Eyes, Painted Reflectors.