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it looks like a cat in the 4into1 collection box. when I took link pipe off I saw honeycomb looking material in it and thaught it would be the cat
I have used mark at bsd for about 5 years. he has done 2 complete engine rebuilds and ive had loads for dyno time with him.. he is bang on..my...
is there any benefit from knocking cat out? would it need dyno set up again after . would it be a problem for mot. ive a rr5 with power...
