jumping350 Posted November 22, 2012 Share Posted November 22, 2012 As my new rear bumper is almost done the rear pipes need to be 1inch further apart than a standard 350z exhaust. I currently have Berks Cats, HR ypipe, Fujitsubo mid pipe and back box Im going to get a custom exhaust done for the rear pipes...if i have straight pipes from the fujitsubo centre pipe to tips is that gonna be ridiculously loud (i.e no back box) is there that much quietening properties in the back box?? any info appreciated Quote Link to comment Share on other sites More sharing options...
scottyp Posted November 22, 2012 Share Posted November 22, 2012 Well, I had a hole on the join to the back box from the centre pipe, and when it was the size of a 5p piece the car sounded unbearably loud! Think quites a lot of the sound is restricted by the backbox, and a fair ammount by the cats. Quote Link to comment Share on other sites More sharing options...
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