[northjersey550i]

Recently did a 550 muffler swap for some M5 mufflers with a burger tune. Overall, I'm very happy with the sound but I did notice during during acceleration it almost sounds like the stock mufflers are too restrictive. On the way up through the rpm band they really burble a lot and just sound like they can't keep up with the exhaust flow. Especially during gear changes it really burbles a lot. Anyone else notice this ? Its starting to drive me a little nuts. Would an actual engine tune help make the exhaust note ? I remember on my old Mustang GT I plugged in a flash tuner, and it made the engine and exhaust sound much crisper.

[NV GUNS]

Originally Posted by corra0c8

Recently did a 550 muffler swap for some M5 mufflers with a burger tune. Overall, I'm very happy with the sound but I did notice during during acceleration it almost sounds like the stock mufflers are too restrictive. On the way up through the rpm band they really burble a lot and just sound like they can't keep up with the exhaust flow. Especially during gear changes it really burbles a lot. Anyone else notice this ? Its starting to drive me a little nuts. Would an actual engine tune help make the exhaust note ? I remember on my old Mustang GT I plugged in a flash tuner, and it made the engine and exhaust sound much crisper.

Check this thread out it may have the answer
http://f10.5post.com/forums/showthre...ghlight=burple