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  1. General
    Hi, I have an R33 gts, it came with a 4" Exhaust from the front of the car, (rusty GTR type) it has no cat and no silencer, just a 4" backbox.. Can anyone suggest a complete exhaust run that I can fix onto my R33 GTS 2L Straight 6, (that includes a Cat) so it'll pass the MOT emissions test...