Quote:
Originally Posted by dcaron9999
This is a short sound clip of a 2011 BMW 135i after a cold start. Car has N55 downpipe (n54tuning.com Performance Line) on stock exhaust, and custom Cobb/PTF stage 2 + tune. Listen how the sound starts out raspy and loud, but tones down down and becomes throatier with a nice turbo whistle when exhaust flap and secondary air pump closes. The tone down sequence occurs at the 38 seconds mark...
Im thinking about getting Vibrant Performance resontors installed to deepen the sound, and make it less raspy at cold start, and Wide Open Throttle...
|
If you do the Vibrant resonators, be sure to post up some vids.. I've been curious about this lately.
__________________
13 X1 35iX, 98 Z3 2.8, 01 M Coupe, 96 Z3 1.9 DASC, 95 318ti, 13 smart fortwo