Quote:
Originally Posted by Longboarder
You're probably spot on. Test pipes alone are probably 10-15 RWHP on an N/A car.
The MRF Velaforza (catless X + mufflers) gave their N/A 6MT shop car +25 HP/TQ on the dyno with just switching from the stock exhaust. With just the exhaust and OE tune, that car made over 400 RWHP on the dyno. And I've been in that car, which surprised the hell out of me. Waaaaaay faster than when my DCT M3 car was stock (365 RWHP).
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That's what I've heard, too. I think, and you'll probably agree, that a bit of it is due to the location/shape of the x-pipe on the MRF exhaust. I think the dyno I saw was 403 RWHP. Insane. I was really hoping Malek had his car at the shop when I went up there last week, but no dice.
Performance wise, I like it better than the GT4; looks wise, it's a close second to the Akra from the rear. You have the best of both worlds since you paired the pipe with the Akra slip.
Sadly, I imagine it would be much too loud for me, though. The Akra Evo was already borderline in bumper-to-bumper traffic on my daily drive, hence my change to test pipes, which I'm enjoying at the moment.