How many catalytic converters in boxster?

[jwade]

get a set of fabspeed by-pass pipes and a bmc air filter. Removing the secondary cats and the air filter really woke up the car. if you have stock exhaust, you could add theirs too or go to an oem tequipment sport exhaust like mine.

i still have stock headers. removal will cause check engine light to come on and i didn't want to spend the 2300 bucks fabspeed charges for the headers. they really need to come down in price if they want to sell more of those. they are nice though.

have fun. i love my car!!!