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Any way to lessen the drone at 2000 rpm?
I purchased the Pypes H 2.5 in system in 2004 which came with Dynomax Turbo mufflers hooked up to RAIII manifolds. System sounds great above 3000 rpm but when I am just cruising between 1500 and 2500 rpm the sound is awful.
Is this just the way it is and if so are there any good choices to replace these for a quieter sound?
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1971 GTO Convertible 455 #64 Heads, HO intake and carb with MSD HEI, RAIII exhaust manifolds and 3:55 posi |
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