North American Motoring
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North American Motoring (https://www.northamericanmotoring.com/forums/)
-   JCW Garage (https://www.northamericanmotoring.com/forums/jcw-garage-231/)
-   -   JCW R56 Challenge Cup Exhaust... (https://www.northamericanmotoring.com/forums/jcw-garage/168157-r56-challenge-cup-exhaust.html)

Augie05 08-08-2009 01:45 PM
Originally Posted by R99 (Post 2814400)

I now have the Factory JCW backbox fitted to my JCW Stage 1. It's louder on the Stage 1 JCW than it is on the Factory JCW for some reason - but its not as loud as the challenge box was.

test.
Do u think because the factory jcw front exhaust provides more noise reduction? U only replaced half of the system. Right?


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