Wraggy9

Hi there I am going to change the cat on my st170 just woundered if changing it to an after market one would this make the engine light come on thanks.

pani_k

iTrader: (1)

It shouldn't do but you can clear it easily with an EML code reader.

minder

stay with the standard ford ones mate changing them on a ST170 wont give you any more power be wasting you money

LeeBee

A standard for cat ford st170 is £1170 whereas a sports cat is only £400, even if it makes no extra power, it still makes more sense to go for the aftermarket cat

jam53ice

Doesn't the ST170 have a sports cat as standard?

LeeBee

It has 300 cell or something as standard, and aftermarket has 200, won't make much noticeable difference, but as it's nearly a third of the price to a standard cat it makes sense to go aftermarket if it needs changing.