Opinions please. Car is an 88 IROC with 5.0 TPI and 5-speed, single 3" cat. My stock muffler and tailpipes have rusted through. I already have a hi-flow cat installed, but now I have to replace the muffler and tailpipes. I'm looking at trying to keep it stock looking with a crossflow muffler, so, which one? The Flowmaster 80 series or the MagnaFlow? Which one flows better? A local dealer that sells both recommends the MagnaFlow. Both have a 3" inlet and dual 2.5" outlets, and the Mag looks like a straight=through design kinda like a glasspack, and all welded seams, lifetime warranty. The Flowmaster looks kinda cheezy in comparison. What say the experts here?? Thanks!

 

i'd pick the stainless one, if one is stainless that is. otherwise consider that a glasspack style( if the magnaflow is a glasspack) will hold moisture and rot faster that the FM and glasspacks get louder as they wear out.