Quote:
Originally Posted by SimonMGZS
are you still using the existing exhaust manifolds that came with the car.if you are i would get rid of them as they are so restrictive.i would put on the ones from janspeed and replace the decat to a sports cat.
as i have noticed in your sig that you have a janspeed exhaust on there
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tbh the janspeed manis are only worth a couple of bhp, this has been proven. i personally wouldnt spend that amont of money for a few bhp.
i may gain 2 bhp by putting manifolds on but will loose that by putting a sports cat on over a decat.
iirc ross and kev both had identical mods, one with manifolds and a sports cat, and one with standard manifolds and a de cat and de-cated with standard manifolds car gave 2 bhp more.