[JC]

Originally Posted by Casper

Yeah, I cant comment on non VCT as they seem to react different. I know of quite a few non VCT I6's that have seen some improvement from all sorts of headers. Problem is that these same headers have recorded no gains (and even some losses from the std manifold) on the VCT engine. Its a whole different animal.

Casper - as you know, I've hadboth (VCT and non-VCT). The Pacies on the VCT felt good (bum-o-meter), but the dyno showed that against another 1998 model AU1 auto, galaxy blue, full body kit, bi-plane spoilered, 17" wheeled, VCT XR6 with similar kms, I lost 2 rwkw, but gained between 5 and 10% torque (can't remember the exact figure, but I think it was 50Nm more than in the stock VCT 6). While that comparison was between 2 different cars, it should still be relevant. One was absolutely stock, the other (mine) had Paccies and 2.5" cats back. To me, the loss of power was of no great concern as the increase in torque makes up for it in take-off, acceleration etc.

So, the paccies (4499s, at least) are a bit of a dud for those chasing max power.

On my AU2 wagon, on the other hand, these same Paccies (along with redback 2.5" cat back system) have dropped around 1 sec off 0-100 times. So they are worth something on the non-VCT I6s.