
Looks like Steve is really busy at the moment, so I'll give you a quick update on the exhaust. (Hope you don't mind Steve

)
We trialled the latest design on my car on the 12th & 13th January. (I have a stock '95 GPX tip - well - except for the mags...) The manifold :-
a/ fitted
b/ gave a 4-5 kw gain
Day was warm with 60% humidity - results were (from memory)
85kw - baseline start point
90kw - with exhaust
92.8kw - with airbox opened
I didn't realise that humidity also affects performance.... learn something new every day...
So we have a success - John has had to make quite a few prototypes so far, with adjustments made on angles and pipe size - so it has been a long and expensive process, also with those of us who could spare our cars to be test bunnies..... (I drove a ute for a week!!!)
Those of you with GR's -
may have a problem, unless you want to upgrade your exhaust - there is a 1/4inch lip that affects the permormance on the cat back.
John has placed the order for the exhausts so these should start filtering through in zbout 1 - 2 weeks at the latest.......
The gain was further increased when they opened the airbox by approx an extra 2 kw's - so those of us looking at also doing the new air intake pipe with the pod filter should see a bit more than that (my air filters are REALLY dirty - they're on that never ending to do list)...
Steve will let you know when they are actually in.
Cheers
Tanya