ive got a mongoose exhaust on my R (turdo back) im thinking i want a different tail pipe! a 4" outwardly rolled. i can get the old 5" jap style cut off & 4" outward rolled welded on by a local exhaust company. i no its not an esential modification but ive always been a fan of outwardly rolled tail pipes! but unsure weather it would look any better? :? what do you guys think?