GM Truck Club
Founded in 2004 ~ We're the #1 Chevy Truck & SUV Forum.
Silverado & Sierra | Tahoe & Yukon | Suburban & Yukon XL | SUV & CROSSOVER
Results 1 to 5 of 5
  1. #1

    Default Exhaust questions...

    A while back I had a the exhaust redone on my 99 Chevy with the 5.7L 350. I had a dual in/dual out Magnaflow muffler with 2.5 in pipe and 3 inch tips. After having it for a while, I have decided that it isn't quite loud enough for me. Is there anyway to make it a little bit louder without changing mufflers? Someone suggested drilling a small hole in the pipes right before the muffler, but I am skeptic of that....would a CAI change the sound much if at all?
    Thanks for the input.
    1999 K1500 Ext Cab, Short Box
    5.7L 350, K&N CAI
    Mangnaflow Cat-back True Duals
    Tuff Country 2.5" Lift w/AAL's
    VVME 35w 4300K HID's (Low)

  2. #2


    I have a flowmaster single in/dual out, and was looking to make mine louder as well. i've got a spectre CAI, and didnt notice much of a diference in the noise that was produced. as with you, i was skeptical to drilling holes. have you heard of anythign else?

  3. #3


    i had cut out exhaust added to my old truck, which made it noticably louder. fairly cheap too; $30 at Summit Racing, and paid a muffler shop $20 to weld it in. comes with gaskets and a plate so you can close it if you need to.

  4. #4
    Sr. Apprentice
    Join Date
    Jun 2010
    Sunny San Diego.


    I'd recommend a set of long tube headers to really make the sound change. I jumped the first time my truck started after i swapped in a set of long tube headers because of the difference. I went with Dynatech and they are pretty expensive, but companies like pacesetter and american racing have some long tube headers for a very reasonable price. Good luck with whatever you do in the end.

    Adam - Wherever the Navy puts me
    2007 Chevy Silverado Regular Cab
    22x10 KMC LO-FI w/ 305/40R22 Yokohama Avids
    Ground Force 2"/4" Lowering Kit
    Eagle Eye Projector "Halo" Headlights
    RECON smoked tail lights
    RECON smoked third brake light
    5.3L V8 Flex Fuel
    Banks Power Ram-Air Intake
    TEA Stage 1.5 Heads
    Comp Cams 54-450-11
    Dynatech Full Length headers
    Dynatech Intermediate pipe with hi-flow cats
    2.5" Single-in, Dual-out Magnaflow muffler
    296 rwhp
    306 ft-lb torque

  5. #5
    murdog94's Avatar
    Join Date
    Feb 2008
    Cloquet, Minnesota, United States
    Blog Entries


    X2 on headers and summit sells a fairly inexpensive set of shorties ($200 or less) for our model of truck. Shorties will make a noticable difference. And dont drill any holes. This will just make your truck sound like it has exhaust leaks.


    1997 Chevy S-10 Blazer 4X4 with 330K miles and counting (Hunting rig).

    2009 Saturn Aura XE (wifes car)

    2011 F-150 Crew 4X4

    "Hold it to the floor till you see God.... Then Brake!!!!"

Similar Threads

  1. header questions? and other exhaust intake and tune questions?
    By elkosp16 in forum Performance & Fuel
    Replies: 16
    Last: 07-19-2010, 04:56 AM
  2. First time towing questions.. Tire psi/Air-bag questions
    By beforeiforget761 in forum Chevy Silverado Forum (GMC Sierra)
    Replies: 2
    Last: 05-16-2010, 07:39 PM
  3. Whats this? Exhaust questions
    By Okimaw in forum Performance & Fuel
    Replies: 11
    Last: 04-23-2010, 03:48 PM
  4. Exhaust ideas for 2003 GMC Sierra - Dual Exhaust
    By RyGuyGMC in forum Chevy Silverado Forum (GMC Sierra)
    Replies: 2
    Last: 03-16-2010, 09:39 AM
  5. Dual exhaust questions
    By TrailFiend in forum Chevy Truck Accessories
    Replies: 10
    Last: 01-26-2009, 12:18 PM

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts