[ceedawg]

I may just go catless seems like most. cars making power with these BM3 tunes are doing just that. AA has an M2 they race, not sure if its catless but I will assume it is catless due to track duty.. 413whp ALL day on the track!

The biggest problem is this small turbo and restrictive stock exhaust manifold as well. That little turbine wheel is spinnng like a demon creating heat like who knows what at high boost. The 340 it has no such problem. Bigger turbo better designed exhaust manifold.
Less back pressure. I see a speedtech 3 turbo mani setup in my future maybe in 2 years. Or even a pure stg 2.