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Well after my catback exhaust was installed, I noticed there was an increase of rpms to redline. The computer automatically shifts at 6500rpm but now it sometimes shifts auotmatically at 6700-6800. Weird!
QuA
2008 BMW 135i | M Package | JB3 | DCI | BMW Performance Exhaust
It's supposed to shift right after the HP peak right? So now that you've got an exhaust maybe your HP peaks a bit higher? Should be neat to see after you dyno.
I've heard the adaptation of the tip is pretty slick but that seems almost too slick.
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