[Greystang302]

Thanks for the idea, but the crackle is coming from inside the exhaust system... I know what exhaust leaks sound like, and this is something different. I installed the tailpipes this morning, and the sound is still present, but it is subdued now. I guess that big turn over the axles tones the sound down some, not to mention the added length of pipe. I guess that's why I never noticed it before.

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1989 Mustang GT, Charcoal Gray w/Titanium, 80k miles -- Stage III TW heads, E-cam, ported Cobra intake, Compucar N2O, 65mm TB, Kirban FPR @ 42psi, C&L 76mm MAF w/30#'ers, BBK 1 5/8" Jet-Hot long tubes, Dr. Gas X-pipe, Dynomax CVX cat-back, 3.55 gears, Tremec 3550 w/Hurst Comp. Plus, Steeda quadrant, Zoom HD clutch, 16"x8.5" OZ Monte Carlos w/Nitto DRs, Factory Five control arms, SVO pulleys, Accel 300+, K&N, '93 Cobra valance, Auto Meter, 130G<A HREF="http://race.aplus.net/" TARGE