Quote:
Originally Posted by aiball
You're also meant to do porting along with the new up-pipe otherwise it's not worth the money/effort with just uppipe only
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ok...but the Grimmspeed one is the only up pipe that comes already ported...Grimmspeed started out as a porting company... that's why I think its said to be the best on the international forums(iwsti/naisoc)...along with the Perrin one, but thats not ported..
Did you mean porting the up pipe only or the whole thing like headers etc?