Originally posted by Mondeo V6:
I'm going to be ordering a performance Y pipe and hige flow cat from BAT soon as my main cat is breaking up,what are peoples experiences wityh gutting the std pre cats on these engines?? Is it worthwhile?? Will i still pass emissions with just a high flow main cat?? Thanks..........(and no,I'm not buying headers-too much $$$$$ spent on this car already)



Too bad. A set of headers is well worth the money. Keeping a free flowing main-cat and an open resonator is also a good idea.

Former owner of '99 CSVT - Silver #222/2760 356/334 wHP/TQ at 10psi on pump gas! See My Mods '05 Volvo S40 Turbo 5 AWD with 6spd, Passion Red '06 Mazda5 Touring, 5spd,MTX, Black