AO Platinum Member
Join Date: Aug 2003
Location: London, England
I've removed the CAT from my Euro2 spec 2.0TS Selespeed.
Don't think it gave much more power though (maybe a little).
The single lambda sensor is before the CAT so it doesn't know that it is nolonger there, so the ECU is still happy.
It will need to go back on for the MOT though.
You don't say how old your 1.8TS is, if it is a Euro3 or 4 spec car removing the CAT is not so simple.
They have a lambda sensor AFTER the CAT, the ECU will see that there is a problem with the CAT (because it isn't there!) and reduce engine power.
Audi TT 3.2v6 DSG
xAlfa 156 Selespeed sp3 + Brembo conversion
Fiat Cinquecento 899cc