Hello, all,
New here, and have a few questions. I'm wondering if there's a way to tell if a 1988 or 1989 Pontiac Firebird Formula or Trans Am with dual exhaust would have had dual catalytic converters, and how to tell if that was an option on either of those years.
Mark
New here, and have a few questions. I'm wondering if there's a way to tell if a 1988 or 1989 Pontiac Firebird Formula or Trans Am with dual exhaust would have had dual catalytic converters, and how to tell if that was an option on either of those years.
Mark
chazman
Supreme Member
close
Today
- Join DateDec 2001
- LocationChicagoland
- Posts:9,941
- iTrader Positive Feedback100
- iTrader Feedback Score(4)
- Car1989 IROC-Z. Original owner
- EngineLB9. Dual Cats. Big Cam
- TransmissionWorld Class T-5
- Axle/GearsBW 3.45
- Likes:714
- Liked:641 Times in 448 Posts
Dual cats came out in Jan 1989, so never on an '88 and only some '89s. Your SPID, (sticker in the console), would say N10.
sofakingdom
Supreme Member
close
Today
- Join DateSep 2005
- Posts:27,933
- iTrader Positive Feedback100
- iTrader Feedback Score(1)
- CarYes
- EngineUsually
- TransmissionSometimes
- Axle/GearsBehind me somewhere
- Likes:1
- Liked:2,454 Times in 1,874 Posts
And of course, none ever came with dual exhaust, in any year or option code.