Results 1 to 13 of 13

Cutting off Muffler

This is a discussion on Cutting off Muffler within the General Help forums, part of the LSx Technical Help Section category; hey i heard my buddies Camaro with his exhaust cut just before his muffler and it sounds pretty sick but ...

  1. #1
    Junior Member
    Join Date
    Apr 2008
    Location
    Utah
    Posts
    22

    White
    1998 Camaro

    Cutting off Muffler

    hey i heard my buddies Camaro with his exhaust cut just before his muffler and it sounds pretty sick but i heard that you lose alot of back pressure and power if you do that...is it true?

  2. #2
    Exalted Cyclops 67CamaroRSSS's Avatar
    Join Date
    Feb 2007
    Location
    San Diego, CA
    Posts
    5,824

    2002 Z28 A4 NBM
    Sadly now demodded :(

    No, it's not true. If it was then dragsters wouldn't use zoomie type headers.

    Did he cut the exhaust or put a cut out on it? I had a cut out til I did the true duals on the 02.

    Forgot to add:

    I see this getting moved to a tech section.......

    An Preston, I do play Powerball at work and haven't won a dime!

  3. #3
    Just me Y2KPewterSS's Avatar
    Join Date
    Nov 2006
    Location
    Broken Arrow, OK
    Age
    42
    Posts
    23,353

    Pewter metallic
    2000 Camaro SS

    Quote Originally Posted by 67CamaroRSSS View Post
    No, it's not true. If it was then dragsters wouldn't use zoomie type headers.

    Did he cut the exhaust or put a cut out on it? I had a cut out til I did the true duals on the 02.

    Forgot to add:

    I see this getting moved to a tech section.......

    An Preston, I do play Powerball at work and haven't won a dime!

    Your time is coming
    CCW SP 500s 18x10 275/35 18x11 295/35
    SLP CME with GMMG style catback
    Painted manta stripe

    Quote Originally Posted by konigandy6 View Post
    I'd rather be bi than full homo!!!!

  4. #4
    James Bond Spikito's Avatar
    Join Date
    Aug 2007
    Location
    Texas
    Age
    30
    Posts
    4,546

    2001 3.8 Black - sold
    2000 SS Black M6

    Yeah i dont see how this would hurt performance any. Guys use cut outs and im sure the cats still provide a lot of back-pressure.

    But from what ive seen back pressure isnt necessary, you want to be as close to free flowing as possible, i mean, isnt that the point of headers and full exhuasts?

  5. #5
    rapter34
    Guest
    youn would probly loose a little TQ down low but you would gain HP. I would just get cut-outs best of both worlds.

  6. #6
    ls1ftw tigersport14's Avatar
    Join Date
    Sep 2006
    Location
    Tulsa
    Age
    29
    Posts
    2,035

    NBM
    98 trans am

    Quote Originally Posted by JTUCK View Post
    hey i heard my buddies Camaro with his exhaust cut just before his muffler and it sounds pretty sick but i heard that you lose alot of back pressure and power if you do that...is it true?
    i did the same thing, i like it

  7. #7
    The Red Reaper 98Z28importslayer's Avatar
    Join Date
    Feb 2008
    Location
    Spring hill, TN
    Posts
    210

    Red
    1998 Camaro Z28 T-Top A4

    it will be pretty loud, you would also gain some hp and tq (5+hp and 8+tq) on a relativly stock car, the more mods the more hp and tq you would gain. 67Camaro said it perfect, all mufflers do is what its titled to do which is muffle the sound or make it quiter, which also makes you lose performence.

  8. #8
    James Bond Spikito's Avatar
    Join Date
    Aug 2007
    Location
    Texas
    Age
    30
    Posts
    4,546

    2001 3.8 Black - sold
    2000 SS Black M6

    i just had my AC compressor replaced. the mechanic had to full my exhaust to get to it, and apparently only re-attached it finger tight. I showed up early to pick it up, i guess i rushed him. So where my Y-pipe connects to my manifolds is pretty loose, sounds terrible.

    I should prob add that since the pipes are still lined up, i couldnt tell a difference in sound until i got out to the highway and got on the throttle, by then i just figured id fix it at home

  9. #9
    LTX N20LT4's Avatar
    Join Date
    May 2007
    Location
    Cali
    Posts
    2,006
    10's N/A

    From my personal experience, when I removed my muffler I lost my low-end.

  10. #10
    Member Speed Psychosis's Avatar
    Join Date
    Dec 2007
    Location
    Virginia
    Age
    28
    Posts
    499

    Red
    98 T/A M6 w/lid and LM1

    free flow isn't always best. why there are variable induction cars like VTEC or mazda's VRIS and why porsche uses variable exhaust. (opens up more with rpm with what seems to be something similar to throttle body.) less flow is better for partial throttle and low rpms. not sure why but it is, for torque.

    now if you were to run just headers, yes you would loose power but not from just the muffler, i would assume. your cats are still giving plenty of backpressure and many people run bullet mufflers and don't complain.

  11. #11
    ls1ftw tigersport14's Avatar
    Join Date
    Sep 2006
    Location
    Tulsa
    Age
    29
    Posts
    2,035

    NBM
    98 trans am

    Quote Originally Posted by N20LT4 View Post
    From my personal experience, when I removed my muffler I lost my low-end.

  12. #12
    LTX N20LT4's Avatar
    Join Date
    May 2007
    Location
    Cali
    Posts
    2,006
    10's N/A

    Quote Originally Posted by tigersport14 View Post
    Is it just me...or do I smell envy?

  13. #13
    ls1ftw tigersport14's Avatar
    Join Date
    Sep 2006
    Location
    Tulsa
    Age
    29
    Posts
    2,035

    NBM
    98 trans am

    Quote Originally Posted by N20LT4 View Post
    Is it just me...or do I smell envy?

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. cutting out
    By charlesss in forum General Help
    Replies: 10
    Last Post: 05-20-2010, 11:44 AM
  2. Replies: 6
    Last Post: 02-08-2008, 07:47 AM
  3. Will cutting off my muffler hurt my performance?
    By HasselZ28 in forum External Engine
    Replies: 5
    Last Post: 09-26-2007, 12:28 PM
  4. Which muffler to replace stock muffler
    By casino187 in forum External Engine
    Replies: 6
    Last Post: 07-23-2006, 03:37 PM
  5. Cutting off the muffler
    By Warwick in forum External Engine
    Replies: 7
    Last Post: 06-26-2006, 01:33 PM

Bookmarks

Posting Permissions

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