It splutters and has a MASSIVE flat spot. I've tried everything and i've finally convinced myself that due to the car not picking up any signal from the Lambda then thats confusing the air/fuel mix.
It only happens when you give it some beans which my MRS doesn't ( her daily driver ). The baffles in the exhaust have also gone so its a bit rattly on start up.
Somes cool though as its got no cats at the minute with one silencer.