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I'm looking at getting an exhaust and i was wondering if a 70mm is overkill for a na car i was looking at the J's exhaust? I am looking for most performance and i fo not plan to go boost? what would you guys do
lol, yeah, 700mm is loud as shit as well. Check out the t1r sparrow 63mm. Gains of 4-5whp without test pipe and its pretty quiet while still giving you the power needed!
Try true 3" duals on a 350 V8 Chevy with Flowmasters, lol. The vibrations from that shake the metal pole barn its parked in and sets off car alarms as I drive by. Its all in an 83 El Camino.