assass1n

iTrader: (1)

im basically trying to plan out my whole exhaust system and was wondering how many catalytic converters and resonators does a stock sc400 have? also wondering where the locations are. i know some of them might be obvious and some arent. never been underneath my sc once since i owned it. crappy winter and no access to a lift.

OneSickSC

i think its 3 cats 1 on each header and 1 in the mid pipe and 3 res...each before the mufflers...

Punky

iTrader: (4)

3 cats, 2 resonators, 2 mufflers

Synthemesc

Confirmed with my local Lexus dealer that my car (98 SC400, no CA emissions) has two cats, a center resonator, and two more resonators before the mufflers. They said that the number of cats (two or three) varied by model year and whether the car was set up with CA emissions. I double checked with them to make sure I would still pass inspection if I did a full cat-back exhaust, and they said it wouldn't be a problem.

assass1n

iTrader: (1)

yey. so all i have to do is remove the resonators to get a nice deep grunt without failing emissions due to removing the cats. thanks for the info.