I changed to a 2.5 in 2.5 out 2 chamber flow..not a flow its a IMCO muffler.anyway the truck seems to take longer to wind up and running hotter than it was.Is it the new muffler.I reset the pcm and now it seems richer
I changed to a 2.5 in 2.5 out 2 chamber flow..not a flow its a IMCO muffler.anyway the truck seems to take longer to wind up and running hotter than it was.Is it the new muffler.I reset the pcm and now it seems richer
Vortec Performance Tuned
LQ9 built 4L60 LTs and a billion miles on the speedo!
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