Will this set up have enough backpressure I dont want to lose to much bottom end torqe. I have ASM Headers allready installed Im getting dual 2 1/2 into a magnaflow muffler dual 2 1/2 out the back with 18"x4" tips. I am running stock cats this is going on a 03 silverado 5.3.
http://i15.photobucket.com/albums/a3...lla/breeze.jpg 03 Silverado LS, 6.0 RcLb
Go: Radix 2.9, 100mm Idlers, GT2-3 Cam & Springs, Long tubes, 2.5'' duals, Cut outs, E Fans,
Built 4l65e, 2600 Conv, 3.90 Gears, Eaton Lsd, Caltracs, Tuned by F-Body Central
Show: Eagle boss 309, Toyo's 285/50s, SS Bumper cover & Spoiler, Roll pan, 2'' rear drop.
Track times 12.304 @ 110.30 with a 1.747 60'
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