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I have a 88 crx hf new to me and it has a huge heavy stainless after market getto blaster
and I think that it hurts my fe, I think these older lean burn vehicles especially pre vvtimeing engines relied on the small tight exaust back pressure to complete a efecient burn considering the valve overlap that was re quired to reduce the hi nox that they produce, so anyway I am going to put a oem exhaust and sell the cat back to a racer the problem I am not looking foward to is finding a oem that has oem back press, I had a cheap shop put a new muffler and tail pipe on my 3/4 ton chev and it sounded loser thjsn the holy one, chinise junk, is there a way to tune the stainless one it looks well made?,thanks Paul
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