DP rasp?

frenchie1013 · 03-16-2016, 05:39 AM

I just installed Downpipes and have some crazy rasp it actually sounds awful to almost embarrassing to me. I have a stock exhaust and have heard (YouTube only) other Downpipes with stock exhaust and they and much better. Any ideas on what this could be ?

madmantwo · 03-16-2016, 05:41 AM

Quote:

Originally Posted by frenchie1013

I just installed Downpipes and have some crazy rasp it actually sounds awful to almost embarrassing to me. I have a stock exhaust and have heard (YouTube only) other Downpipes with stock exhaust and they and much better. Any ideas on what this could be ?

Make sure the downpipes aren't touching the heat shield material underneath, or the subframe. That can cause some pretty awful noises that could be mistaken for rasp

frenchie1013 · 03-16-2016, 06:15 AM

Quote:

Originally Posted by madmantwo

Quote:

Originally Posted by frenchie1013

I just installed Downpipes and have some crazy rasp it actually sounds awful to almost embarrassing to me. I have a stock exhaust and have heard (YouTube only) other Downpipes with stock exhaust and they and much better. Any ideas on what this could be ?

Make sure the downpipes aren't touching the heat shield material underneath, or the subframe. That can cause some pretty awful noises that could be mistaken for rasp

I'll give that a shot. Thx

shadow191 · 03-16-2016, 01:28 PM

Exhaust leak? There shouldn't be rasp with a stock exhaust. So as the other poster said, check your install to make sure nothing is touching (or leaking). I had a small leak at the rear v-band. Didn't cause a rasp, but you could hear the exhaust leak.

03-16-2016, 05:39 AM	#1
frenchie1013 First Lieutenant 81 Rep 360 Posts Drives: sedan Join Date: May 2014 Location: CT iTrader: (0)	DP rasp? I just installed Downpipes and have some crazy rasp it actually sounds awful to almost embarrassing to me. I have a stock exhaust and have heard (YouTube only) other Downpipes with stock exhaust and they and much better. Any ideas on what this could be ? __________________ 2010 335i Rwd 6spd MHD Wedge tune, VRSF Exhaust,FMIC, DP and CP, PR Inlets 2014 X5 50i BMS stage 1, Dinan intake, F85 Knee Bolsters
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03-16-2016, 01:28 PM	#4
shadow191 Lieutenant Colonel 182 Rep 1,681 Posts Drives: 2017 Volvo XC90 R-Design Join Date: Dec 2012 Location: GA iTrader: (3)	Exhaust leak? There shouldn't be rasp with a stock exhaust. So as the other poster said, check your install to make sure nothing is touching (or leaking). I had a small leak at the rear v-band. Didn't cause a rasp, but you could hear the exhaust leak.
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