3\" exaust? Well, plans for a 3" single exaust for my truck are forming. So far I got a 3" flowmaster for $45, and plan on getting a 3" cat from summit. I may also swap the EFi from my 87 over. Now, will the larger exaust screw up my EFI because it's flowing a lot better? I've heard of some EFI systems running a little rich due to larger exausts. Dunno if it's true, but it's what I've heard. I just hope this custom cat back will give me more power. Right now the truck is slow as crap, and I don't think it's the gearing. Geeze I need to ditch this target replacement for a ZZ crate motor... <a target="_blank" href=http://billybob87k5.50megs.com>Homepage of Porky & Stinky</a> ".. Sanatarium.. leave me be..."