05-10-05, 01:43 AM
Well, my tailpipe is now an inch off the ground, and rusting. So it's time for a new one. The Cat is stock too, so I'd like to put a new one on. 90 Brougham, 137000 miles. I'd like to do a single cat, to a flowmaster 40 series, with dual outlets. I live in Mass, and may be heading down to North Carolina soon. My main concern is making sure there is just enough backpressure to make the EGR work. other than that, I want this thing to FLOW. Most of the stuff posted here seems to be from out in no-emmisions land, so I can't really use that. Plus, I don't have the ability to do true duals, since it's an olds 307. Thanks for the help.