I just bought a slightly modded 88 GT 5-speed that has BBK equal length headers and a BBK off road H-pipe. What would be the easiest (and cheapest) method to interchange the O/R H-pipe with so it would pass emissions? I know that interchanging it with a stock H-pipe will work, but I haven't been able to locate one and was wondering if there was other models that would interchange with it. I assume that an 86-93 will fit?

Thanks in advance for any help/suggestions you may have.

 

if you can't find an original used h-pipe and you could price all the local parts stores for a stock replacement catted h, but its prolly gonna be expensive because of the cats

 

you could move to a state that has no emission testing. or tell them it has AWD at the emission place so they don't put it on the rollers..lol

 

cheapest way is to cut up your o/r h pipe, and weld come cats in.. but then its destroyed.