Florida doesn't have emissions.

Still need a cat in the US of A though.

I'd feel too guilty without one on there though, and I don't like the dent it would put in my wallet if it was found out. That'* why I'm playing around with the idea of a cutout for track use.

I don't know enough about exhaust yet, but my thoughts were to clamp the cat on and use a straight pipe at the track myself.

Great topic, guys. When I shopped for a cat, I got one with 2.5" inlet and outlet rated for performance (10% more flow). I didn't ask all these questions or question anyone. I did get the right cat, but didn't KNOW that at the time.

Bill, you're running the 91006 right? Knowing what we know now from the information in this thread, would you still get that one, or the other?

Guys, my apologies. I just dug up my old receipt from (don't laugh) 3 years ago, and I have the 94006.

Please don't hate me.

No problems on my end. I didn't buy yet Guess the 94006 is the way I'm headed.

The small one would be MORE than sufficient for an L27 or L36. The L67 flows more than it'* advertised cubic inches.

Here'* an interesting chart from the JustMagnaflow site...




I forgot to mention, the Magnaflow tech actually recommended a 94806, which is a GM V6-specific converter. I wonder how it flows compared to their other models.


Even more interesting..... the CarSound site is finally back up. Lo and behold, their Application Finder recommends the 91006 for a '97 Bonneville! What gives?