2Lexus430s

Can you remove the Cats on a sc400 without effecting performance negatively??

Bean

iTrader: (1)

on a 99? no... you'll get a check engine light and the car will go into limp mode...

get O2 simulators for your ODBII O2 sensor setup and then you can

other than being loud; you shouldn't see any negatives; just more power

2Lexus430s

Where can you purchase the simulator? and.. do you need a high flow intake to complament the exhaust.....What kind of HP gains do you get?

2Lexus430s

also, is your 90 300zx SGP stage I, or Stillen Stage I?

When you say Stage I does that mean you have the Highflow intake? or the Cat back?

Also, do you have the JWT Computer?