I noticed on some newer cars that the resonators are upstream, ahead of the muffs and slightly ahead of the driver. This makes sense, as you are canceling (smoothing) the negative pulses/frequencies closer to you. My car, w/o resonators is pretty loud in the garage, not sure it is going to get much quieter on the open road. Might have to do something. I like those ultraflo bullets
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1967 GTO
Tyrol Blue/Blk Cordova
400, TKO-600, 8.2 Posi w/3.55
400 + .020, decked to .005
SD Performance 240+CFM 670 heads
RARE HO/RA manifolds
RARE 2.5" Exhaust (18" Magnaflows)
SD "Stump Puller" HR cam (230/236, 112LSA, 107.5 ICL)
PRW stainless 1.52 roller rockers
Forged TRW slugs
SCAT H-Beam forged rods
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