kawabill

Howdy everyone just bought a 53 plate STI what does it need to decat the exhaust system is it as simple as removing the cats thank's bill

Spec'c'57

iTrader: (1)

the centre is fairly simple but if going full system a CEL fix will be required.... even better a RE-Map for the performance gains..

kawabill

Thank's for your help spec'c'57 i will go for the remap and both cat's

bpm1588

good idea to get both done at same time.some tuners won't let you out the gate with out getting a remap done after fitting the de-cat pipes,to much chance of doing serious harm.
i have a sti myself and had a prodrive high flow cat fitted which i thought would be ok to drive the car as normal with for a while, but the guy who i planned to have the car remaped with told me best to take it easy till he got a chance to do his thing.at a guess with a full de-cat this advice would be even more vital.sti's do run very rich as standard but without getting someone to look at it proper its not worth the chance of running a high flow exhaust and melting a piston