Someone coulda just cheaped out on the tires and bought like 28x9.5's or something, hahaha, high five to pizza cutters. If you want ti to roar, cut off the cats, or, look into flowmasters muscle car exhausts, like the 10 or whatnot. Ya know, a glasspack/ cherry bomb muffler might also be what your looking for, but truthfully those are extremely dysfunctional.