I have been looking at the chart and noticed something funny, the 2055 are not listed to fit on 91-92 year cars. Is that just a miss print or what? I hunted all around the boards doing searches and what not but couldnt find the thread i was looking for. Im sure this has been covered before, but i couldnt find anything lol. If thats the case are the 2460s a good bet for me since they got the Y pipe out now ?

Oh yeah i am looking to keep the AIR hooked up also

 

'91-'92 TPI single cat were 2-1/4". 2055's are for TPI single slip-fit inlet 3" cat, which was only '86-'90 ('85 TPI was 4-bolt inlet cat).

2460's with A.I.R. are special order. By the time you get those and the 2460 y-pipe you'll have spent as much as you would have to get 2055's, but you'll have the smaller cat.

Get the 2055's and an '86-'90 TPI single cat application direct-fit cat. Unless you have CA emissions inspection to go through, you'll be glad you did.

 

thanks man, thats what i needed to know. I have no cats atm, but will need to put 1 at least back in for the visual inspection, plus it stinks lol. I wasnt sure what the difference was, and since im going ot single cat anyways this works out. I think i will go with the 2055's with the ypipe, and a bolt on cat just for simplicity.