[JL8Jeff]

Spintech mufflers don't look like a good design inside. I think some of the Edelbrock mufflers look similar. I was looking at some muffler flow/sound/power tests the other night and the Dynomax was about the highest flow with the most power and the quietest noise level. I think the Dynomax Ultraflow and Hooker Aerochamber are the best flowing straight through mufflers that aren't obnoxiously loud. I'm sure removing the tips will change the sound to eliminate some of that echo sound but you want to make sure the exhaust gets out from under the car so you might need some temporary tips.