I don't like the Prova Muffler set up. I was thinking a race pipe option as well. My brother in law had his BRZ at a performance shop last week where they fabricated intake and various exhaust options... After each part was installed the first initial dyno showed great HP increase levels...(Then the bad news) the ECU quickly remapped everything to only show a 6HP increase with exhaust and intake set up. It appears you can't obtain extra horsepower out of this car without a proper tune.
So hopefully Perrin can come out with something in less than 6 months? Perrin - Have you seen the same results so far? Any thoughts?
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