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muffler delete

  1. 6.0 exhaust

    General 6.0L Discussion
    Do the 05-07 6.0s have a resonator in the downpipe? Or was that only in the 03-04? Looking to do a muffler and cat delete to get that loud whistle sound
  2. Should I upgrade my exhaust?

    General 6.0L Discussion
    I'm contemplating upgrading my exhaust to a 5" stainless, deleting the muffler and cat. Should I do this? Will I throw any engine codes if I do this? How much louder will my truck be? I camp in campgrounds fairly regularly and don't want to wake up the neighbors with an obnoxiously loud...
  3. 2008 6.4 Filter Back exhaust

    General 6.4L Discussion
    OK so my dad has a 2008 6.4 powerstroke, Super cab long bed with a Reading utility body, SRW. My dad is getting pissed because the truck constantly gets 11.2-11.8 mpgs. when he got it it got around 9-10 then we drilled about a dozen 3/4 holes in the air box cover with a hole saw and it went up...
  4. dpf and cat delete..or a full system??

    6.4L Performance Parts Discussion
    I bought cat and dpf delete piping but i still have stock muffler on.. thinking i should have got a full turbo back system:doh:would a rbp 4inch with muffler or a 5 inch stright pipe b better??:dunno:
  5. F/S 4.0" Magnaflow Muffler Delete Pipe

    Performance & Drivetrain Parts
    Used in the 4" systems, this pipe is put in place of the muffler for a less restrictive, louder sound. Brand new, never used. 20.00 plus free shipping larger pic upon request.
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