performance muffler sound on GN

[marleyskater420]

Originally posted by soundguy
no one told me, it was experienced in 2 vehicles. Evidently the newer vehicles use the backpressure to smooth out the shifts. The first car I thought it was mere coincidence, but it happened on my truck when I put the flowmasters on it.

Its probably the driveshaft bearing going out.

That tends to cause slipping when exhaust is freed up.

See, the driveshaft is directly propotional to the flow of exhaust, so when you allow more exhaust to get out, the driveshaft thus spins differently.

Its ok if you didnt know this, we understand.