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Old 07-11-2010, 02:50 AM   #1
RScoobyy
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Default Apexi N1 Catback+Borla Reps=Crappy Sound?

Hey guys I have an Apexi N1 exhaust on my 2002 RS and I recently put on some ebay borla replica headers. I have a friend who is running a nearly identical setup on his RS and it sounds nice and rumbly, but mine has more of a tin can tone to it? It's not really a high pitch sound, just not as deep as it should be. It sounds good for maybe the first 3-4,000 RPM's. Any ideas?
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Old 07-11-2010, 11:19 AM   #2
piker28
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Well you say nearly identical, what are the differences?
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Old 07-11-2010, 01:03 PM   #3
RScoobyy
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Quote:
Originally Posted by piker28 View Post
Well you say nearly identical, what are the differences?
He is running an N1 Replica exhaust along with borla reps.
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Old 07-11-2010, 01:27 PM   #4
got0azn0rice
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catted vs catless? I have the exact same setup and it sounds amazing! borla/catless/apexi n1
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Old 07-12-2010, 12:55 AM   #5
RScoobyy
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Catted on both cars. My car sounds fine for the first couple thousand rpms, but any higher just causes sort of a clicking noise. Maybe an exhaust leak?
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Old 07-12-2010, 09:17 AM   #6
GEE-OTTO
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Quote:
Originally Posted by RScoobyy View Post
Catted on both cars. My car sounds fine for the first couple thousand rpms, but any higher just causes sort of a clicking noise. Maybe an exhaust leak?
No you need to wrap your headers to insulate for sound
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Old 07-12-2010, 07:20 PM   #7
xsv141
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yeah mine was doing the same and i wrapped the headers and it got rid of it!
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Old 07-12-2010, 07:46 PM   #8
kero
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Welcome to the sewing machine affect my friend, I've had it from day one on my uel headers, wrap or learn to live with it.

I have chosen to live with it since wrapping for me is not an option unless I have a quiet private place to do it.
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Old 07-13-2010, 04:43 PM   #9
RScoobyy
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Thanks everybody, I'll look into that! I've seen a few "pre-made" wrapping kits around for the uel headers, can anybody point me in that direction?
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Old 07-28-2010, 02:03 PM   #10
RScoobyy
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Sorry to bring this thread back up again, but I just wrapped my headers yesterday, and it didn't get rid of the "sewing machine effect." Any ideas on what else it could be?
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Old 07-28-2010, 02:43 PM   #11
piker28
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Well you said his is a replica exhaust, so different metals can change the noise and tone of it some.
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Old 07-28-2010, 02:52 PM   #12
flightwatch
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Check for leaks. Spray soapy water around all the flanges, start the car a and look for bubbles as somebody revs it up
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Old 07-28-2010, 07:05 PM   #13
RaceFaceXC
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Quote:
Originally Posted by flightwatch View Post
Check for leaks. Spray soapy water around all the flanges, start the car a and look for bubbles as somebody revs it up
exhaust leaks usually create suction around the leaking joint since the gas inside the pipe is moving faster than the gas outside the pipe (atmosphere), so bubbles wont be visible. the most likely situation for bubbles would be at idle. Bernoulli owns u.

One can pressurize the exhaust with compressed air up the tailpipe and a rag wrapped around the air nozzle to create a loose seal. only need a couple PSI to show some bubbles. Do this with the engine OFF, obviously.
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