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      12-07-2012, 11:20 PM   #1
asirvr4
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My Exhaust Combination

Hi,

i got the RE diablo catbacks for my z4m and fabspeed headers also

i am thinking of the following combinations to complete my exhaust system:

A) rogue engineering x-pipe

B) supersprint sec 2 catless pipes

C) supersprint sec 2 catless pipes + rogue engineering x-pipe

which are the pros and cons of each combination?
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      12-07-2012, 11:30 PM   #2
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Take those cats out and it will be rasp city!
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      12-07-2012, 11:54 PM   #3
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Quote:
Originally Posted by Rated M Roadster View Post
Take those cats out and it will be rasp city!
Agreed. I say do none of the above and save your money for a Gruppe M intake or supercharger.
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      12-08-2012, 07:50 AM   #4
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I agree with the above.

(FWIW, the CATs section is known as section 1)
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      12-09-2012, 07:28 AM   #5
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Thanks for replaying..

So no and no for b) and c) bcoz of rasp

How about a) xpipe only? Rasping also?

Power gains?
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      12-09-2012, 10:02 AM   #6
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so with my car i sent from RE cans to RE cans and RE x pipe first and the added difference was a tiny bit of rasp when the car was cold. it probably added to the note of the car a bit also. Now with addition of Euro headers, the car has plenty of rasp. I also added a Grouppe intake after everything else and the car sounds completely different than when I had RE alone.

If I were in your shoes, I would either go with Grouppe alone or plus a tune and skip on any more exhaust changes
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