I've been running the car for the past four months with the second cat in, car runs fine boosting on a normal day between .8 and .9 hitting 1 to 1.1 bar when the air is at it's best.
If I take out the second cat and put the decat with 1.1 RR in it makes no difference at all, boost is the same only noticable thing is that the turbo's spin up fast.
So I thought I'd junk the RR and try it straight through and.... it makes no difference. No boost creep and no drama.
It does seem to accelerate faster on the second turbo without the cat but why is my boost so static?
I seem to remember in my early days of ownership, when flooring it, it used to squat down a lot more than it does now.
Any ideas?