Dodge Cummins Diesel Forum - View Single Post - Turbo Spool Up

Ops · 05-11-2008, 02:21 PM

My rig had a 5" straight pipe on it when I got it. It has a nice deep snarl under throttle, sounds like an 18 wheeler pulling a hill. The down side is a nasty drone at certain throttle settings. I'm considering a 5" resonator in place of the muffler delete pipe.

As far as the theory, less backpressure is better, and yes the pipe can get smaller as the exhaust gases cool.

Ops

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01 QC, tow package, 4X4, 33" BFG's, Edge EZ, 4:10s with LS, 5" straight pipe. Updated May 07: Holley Black on the frame rail, ISSPRO fuel pressure guage. Modified heachache rack, brush guard, 100w driving lights. Goerend triple disc and VB.

05-11-2008, 02:21 PM	#18 (permalink)
Ops Cummins Nut Join Date: Aug 2006 Location: Middle of PA Posts: 435 Ops's Truck Pics	My rig had a 5" straight pipe on it when I got it. It has a nice deep snarl under throttle, sounds like an 18 wheeler pulling a hill. The down side is a nasty drone at certain throttle settings. I'm considering a 5" resonator in place of the muffler delete pipe. As far as the theory, less backpressure is better, and yes the pipe can get smaller as the exhaust gases cool. Ops __________________ 01 QC, tow package, 4X4, 33" BFG's, Edge EZ, 4:10s with LS, 5" straight pipe. Updated May 07: Holley Black on the frame rail, ISSPRO fuel pressure guage. Modified heachache rack, brush guard, 100w driving lights. Goerend triple disc and VB.