Demlotcrew wrote:Ive seen the BTB system on Simons car, he bought one of their exhausts when Salman did a alpina copy group buy, very basic mild steel, sounded good for the majority of the life of the system, but the fit was horrible!
Im pretty sure that the BTB manifold is a blended copy of the RD and Alpina manifolds?
Errr... that will be a quick silver system then, NOT a BTB!
Demlotcrew wrote:Im always very sceptical of proven power gains especially when there is no fuelling or ignition compensation. Lets swap your AFM and see if you loose or gain any power
My car has been dynoed on the same dyno pre and post manifold fitment and the gains were there.
My car was also dynoed post fitment of the manifold on two different dyno's on the same day and the results were the same give or take a bhp/lbft.
Simon was there and he dynoed his car on both dynos too!
Do you want to see the print outs?
As long as the AFM is in perfect condition like mine and the the CO is set correctly like mine is then there should be very little difference if any on the power/torque outputs.
Demlotcrew wrote:Im just like you, i too do not want pirtek pipes all over the place, then theres the coupling too, just doesnt seem such a finished implementation, seems to work ok though!
In my old S50'd E30 it had an E36 M3 rack and it all worked ok but it all looked home made.
Demlotcrew wrote:This is a manifold they made for turbo project. Obviously not finished, but also not tuned in any way at all, its a turbo after all.
Andrew
Thats not exactly a good judge of weather their work is any good or not, just a few pipes tacked together.
Another point in case for BTB, they are the only manifold to retain factory power outputs on E30's with an S50 engine and as you know the design of the S50 manifold is also crucial to that particular engine.
He has my trade plates at the moment! 
to meet their customers demands. They produce everything from cast arms, to hub axles, uprights, gearboxes, differentials, gear sets, racks, con rods etc etc etc 
