I bought a sportex exhaust from ebay and got it last week. I went for the 4.5" oval and tbf if you fit it right it sounds pretty good to me. Having not had a backbox before mind you! I did'nt weld the exhaust i clamped and pasted. I would say it will sound pretty good if you dont want to sound mega loud but make a deeper sportier sound, it sounds good around 3000 revs and going up to about 4500 but then starts to quiten down. but if i where you id go for it i was pleased with it. hope this helps