I have just fitted GT2560rs, and Greddy / Trust Dumps and front pipe, this was matched to my existing 3" Cat back Jasma exhaust and Standard CAT.
The car still has the standard ECU, and is running very rich over 5000rpm (low 10AFRs)
After picking car up from dyno yesterday it ran like bit of a dog on the way home, as if plugs were fouling as it was put under load (which would confirm what dyno printout suggests), but later that night it was breaking down real bad and did'nt clear up at all, I had a top speed of about 60kmh, and after a little while the little 'Exhaust temp sensor light' came on.
A quick check underneath the car revealled, a huge amount of heat from the Cat.
Has the Cat melted...?
Would retaining the standard Cat have caused my initial AFR problems in the first place, and would fitment of HiFlow Cat solve it?
I thought the standard ECU would have coped better with fairly minor Turbo and exhaust upgrade...?