I was wondering which is better as far as the cost/performance aspect. Ive heard that the catback systems do little to enhance the performance of N/A stangs. I would like to gain some performance but not if it is too minimal. I dont have that much mod money so I was thinking of purchasing some dual chamber mufflers instead...so I'd at least get the deeper rumble.
Opions?
Also, what are the best mufflers to buy?
Opions?
Also, what are the best mufflers to buy?

