Quote: I get a drone around 45 then it goes away immediately after or before.My system is 2.5" tti with H pipe through factory manifolds. I really love the sound of the system
exact same here.. Using the long case "hemi" super turbos, love the low speed rumble and totally quiet highway cruise..unless you stand on it.. couldnt be happier... have them on two cars, both with stock 440s,with HP manifolds, one 2.76 gear and the other with 3.23s.
