Yup because 99% go with what's been proving to sound pretty damn good. That's why XS pro come up so much.
And yes the longer the resonator the better. Kills drone especially that god awful drone you tend to get during deaccleration. It'll never sound like a v8 so don't try to even it to sound like that.
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Is the resonator worth having like how much does it fix? I just figured it would restrict the flow so why bother same with the cat.
00 Grand Prix GT, top swapped, .020 FMP, GT1 Cam, SFI Crank pulley, SSM90, 3.3 MPS, ZZP ported Gen 3/LIM, ported heads, #90's, N* TB, SLP Intake/Headers/Catback, F-body brakes, KYB AGX, Aeroforce, AEM, 93 octane.