Dismiss Notice

Welcome To CK5!

Registering is free and easy! Hope to see you on the forums soon.

Score a FREE t-shirt and membership sticker when you sign up for a Premium Membership and choose the recurring plan.

which muffler?

Discussion in '1982-Present GM Diesel' started by woods, Mar 22, 2003.

  1. woods

    woods Registered Member

    Joined:
    Feb 18, 2003
    Posts:
    73
    Likes Received:
    0
    I'm replacing my old mufflers on my 6.2 diesel stock, pretty sure its 2 1/2 pipe havent measured it yet . I plan on putting j-code intake on eventually.

    Currently looking at:
    http://store.summitracing.com/product.asp?d=8&s=165&p=1925&searchtype=ecat

    http://store.summitracing.com/product.asp?d=8&s=165&p=490&searchtype=ecat

    http://store.summitracing.com/product.asp?d=8&s=165&p=5027&searchtype=ecat

    http://store.summitracing.com/product.asp?d=8&s=165&p=1736&searchtype=ecat

    or any suggestions ill gladly take them

    Woods
     
  2. TK5

    TK5 1/2 ton status

    Joined:
    May 29, 2002
    Posts:
    319
    Likes Received:
    0
    Location:
    Fairview , Tennessee
    Flowmaster 70 Series!! Sounds like a big block. I have 3 inch inch exhaust all the way thru.
     
  3. K5Blazed

    K5Blazed Registered Member

    Joined:
    Mar 16, 2003
    Posts:
    28
    Likes Received:
    0
    Location:
    Davis, CA
    I just ended up cutting the exhaust around the mid-door area and put on a pair of 2 1/4" Thrush glasspacks. Nothing fancy here, but does the trick.
     
  4. Tybee

    Tybee 1/2 ton status

    Joined:
    Mar 25, 2001
    Posts:
    1,565
    Likes Received:
    0
    Location:
    Centennial, CO
    Why sound like a big block when you have a diesel?
     
  5. woods

    woods Registered Member

    Joined:
    Feb 18, 2003
    Posts:
    73
    Likes Received:
    0
    im just looking for a decent free flowing muffler, thats a decent price, if you got any suggestions for a good muffler for diesels please post a link

    thanks,
    Woods
     
  6. BlueBlazer

    BlueBlazer 1/2 ton status

    Joined:
    Feb 15, 2001
    Posts:
    1,940
    Likes Received:
    0
    Just put the stock mufflers on. 6.2s sound like junk with mufflers made to make gas motors sound good.
     
  7. k20

    k20 3/4 ton status

    Joined:
    Sep 9, 2001
    Posts:
    5,068
    Likes Received:
    0
    Location:
    Mineral Springs, NC
    straight pipe, straight pipe, im just a gasser what do i know, straight pipe, straight pipe /forums/images/graemlins/grin.gif
     
  8. Tybee

    Tybee 1/2 ton status

    Joined:
    Mar 25, 2001
    Posts:
    1,565
    Likes Received:
    0
    Location:
    Centennial, CO
    Too loud too loud too loud!!! /forums/images/graemlins/rotfl.gif
     
  9. woods

    woods Registered Member

    Joined:
    Feb 18, 2003
    Posts:
    73
    Likes Received:
    0
    arent the stock mufflers pretty restrictive on back pressure?

    Woods
     
  10. TK5

    TK5 1/2 ton status

    Joined:
    May 29, 2002
    Posts:
    319
    Likes Received:
    0
    Location:
    Fairview , Tennessee
    Cause you can!!! Cause you want to!! Cause everyone is!!!

    I don't like glass pack sound, I don't like no muffler sound, I don't the stock muffler sound. I just like flowmaster's performance, sound and they were auctioned to a price of $100 for a lot 6. Speed shop going out of business Sale. They were 3 inch in and 3 out. Wanna buy a set???????
     
  11. NITRO

    NITRO 1/2 ton status

    Joined:
    Jan 9, 2002
    Posts:
    1,057
    Likes Received:
    0
    Location:
    Frankfort In
    how much do u want for a set? i have a lot of things to trade... thanx

    NITRO
     
  12. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

    Joined:
    Jul 23, 2000
    Posts:
    36,180
    Likes Received:
    1,388
    Location:
    E-town baby!
    I don't know what a 6.2 would sound like with dual Flows...but I have a single 50 series Flow on mine and it's dead quiet. I've heard glass packs aren't good with a diesel due to soot building up and eventually plugging them though. The Flow is just a set of simple steel baffles.

    Rene
     
  13. 55Willy

    55Willy 3/4 ton status

    Joined:
    Jun 2, 2001
    Posts:
    9,946
    Likes Received:
    0
    Location:
    Keizer, Or
    What size single exhuast should one be looking at??/I know the stupid dutys and what not run 4" single and fit the 88 IFS chassis with little to no mods, my buddies uncle has put it on all of his rigs,LOL.


    I'm looking at doing this to my 89 burb, just to make it breath better.

    -Jeremy
     
  14. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

    Joined:
    Jul 23, 2000
    Posts:
    36,180
    Likes Received:
    1,388
    Location:
    E-town baby!
    Bigger is better apparently. I have 2.5" single on mine and it seems to do fine. 3" should be better though.

    Rene
     
  15. imiceman44

    imiceman44 1 ton status

    Joined:
    Aug 5, 2002
    Posts:
    15,160
    Likes Received:
    1
    Location:
    Sacramento, CA
    [ QUOTE ]
    I don't know what a 6.2 would sound like with dual Flows...but I have a single 50 series Flow on mine and it's dead quiet. I've heard glass packs aren't good with a diesel due to soot building up and eventually plugging them though. The Flow is just a set of simple steel baffles.

    Rene

    [/ QUOTE ]

    You are correct.
    Were I was in the middle east they made some glass packs with bigger hole for the diesels.
     
  16. Leadfoot

    Leadfoot 1/2 ton status Premium Member

    Joined:
    Nov 28, 2000
    Posts:
    3,112
    Likes Received:
    1
    Location:
    Western Massachusetts
    Rene,
    I would assume bigger is better, but for a normally aspirated diesel, I would think moderation (without suffocation) would be key.
    The new diesels with the big pipes are also running turbos. More air in, more air out.

    I know if you go too big with a gas engine you lose low end power, but gain high end efficiency.....not sure if that happens with a diesel as well.

    Maybe pose this question on the www.thedieselpage.com
     

Share This Page