Anyone running the Walker 21050 resonator ( Walker Exhaust 21050 - Walker Resonators - Overview - SummitRacing.com)? I'm looking for a 3" resonator and was considering the Magnaflow 12867 (MagnaFlow Exhaust Products - For Trucks, Suv's, American Muscle, Diesel, & Sport Compact Vehicles) but thought that maybe 14"/20"-overall would be too short to really quiet it down. I also wasn't sure whether the 6" diameter Walker would be too big for the tunnel. I know glasspacks are cheaper, but from what I've read it sounds like the bigger resonators will do a better job at quieting things, which is what I'm after.