Hi Guys
Last week i brought my mk5 golf gti, the engine light has come on which is caused by the cat. Have turned the light off and so far hasnt come back on. Still running absolutely fine.
I was thinking rather than replacing with a standard cat was looking at a de-cat or sports cat with exhaust system.
Are there any systems out there that arent 3"? or have people put a 3" system on without a stage 2 remap?
Also opinions on de-cat or sports cat?
Thanks :)