Going by the "seat of the pants" dyno, those figures do not surprise me with both mods. I believe the second DeMuff would be worth a few HP as well.Thanks guys we put our stock car on the dyno and got 175bhp then with GTT stealth cat + GTT Boost DeMuff pipe and got exactly 190bhp. The RR did not simulate the actual boost you get on the road, so in the real world I think the difference is even greater. I have the graphs somewhere.
Roland, are you still offering this conversion?
If so are the prices still current?
How about a group buy?
And can someone clear something up for me. This mod is essentially the same as the Miltek downpipe as far as I can see. But does anybody have any figures for how many cells the Miltek cat has, and the same for this conversion?