GBruce

Hi,

Since fitting my gruppe-s headers my scoobysport system 3-2.5" downpipe centre and backbox has become very raspy and horrible sounding. I would also like a bigger bore exhaust system 3" or bigger to be as free flowing as possible without being very noisy.

Have bought a Fujitsubo legalis super R just to use for a while, it's a bit too quiet and the centre/ downpipe joint is smaller than the ss one.

Have any of you got this combination and what do you think?

HKS Hiper and revolution downpipe
Or something with 3" or bigger bore throughout and no reduction in size at downpipe joint any suggestions. I Like the jap style backboxes

Is a revolution downpipe 3" bore throughout? I see they mention an adaptor to get it back to 2.5" this would be handy for centre cat come mot time.

Thanks


George

Twigster Home

Try an APS 3.25" system from G-Force. They sem pretty good and not too loud. Otherwise, contact Hayward and Scott and get them to make something up for you!

scoobyDAZZA

i've got the magnex downpipe and blitz nur spec r system,
the blitz is a 3" bore from DP and all i've got to do for
mot is put the standard BB on the standard centre . . .
but an adaptor sounds a good idea to link the 3" flange
on the BB to the standard centre.

StickyMicky

full 3" revolution system on mine

sounds a tad raspy, but not 1.2 corsa style

GBruce

Sticky,

Does your revolution downpipe taper to 2.5" at the end or is it a genuine 3" bore all the way?

George