MX-5 cat bypass
Discussion
Are there any benefits, noise performance, etc to fitting a cat bypass pipe to a standard exhaust on a mk 1 1.6 eunos? i have the bypass pipe already and am getting a performance manifold and exhaust system next month. Its just im keen to fit the bypass pipe while i have some spare time, or should i wait???????????????
chimmo said:
I have a cat bypass on my 1.8. IMO it gives a little better response in the midrange and combined with my hks header and exhuast system gives it a lovely sound. The pops,bangs and flames can get a little anoying sometimes though 

Is the engine standard apart from the exhaust ?
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