Welcome to the H4O - HUMMER 4x4 Off Road.
Results 1 to 8 of 8
  1. #1
    Low Profile
    Join Date
    Nov 2011
    Location
    WI
    Posts
    145
    Thanks
    24
    Thanked 16 Times in 16 Posts

    New exhaust system help

    So looking for some ideas and suggestions on running all new exhaust from the motor back. Had a small hole in the muffler that I was going to replace but when I got under it to measure the pipe size, I found one of the pipes broken by a clamp along with a large crack coming off the motor so Iím thinking of taking it to a custom muffler shop and having a whole new system ran. New headers, hi flow cats, 3Ē duals that come out to stock exit just over axle hump with a pass through muffler.

    Any suggestions on products or run it different. Horsepower and torque would be nice to increase but would also like to keep good torque numbers good at low rpms. Long tube or short tube headers. One muffler vs 2. Stock exit or somewhere else. Any help would be appreciated.

    TJ


    Sent from my iPad using Tapatalk

  2. #2
    Bald Tire
    Join Date
    Aug 2017
    Location
    North Ridgeville
    Posts
    21
    Thanks
    3
    Thanked 1 Time in 1 Post
    Subíd. I run a Corsa catback and I love it. However, I now have a manifold leak and want to replace them with short headers. Many of the threads Iíve read are pretty dated, so Iím wondering if anyone has a header product recommendation update they includes a longer term experience.


    Sent from my iPhone using Tapatalk Pro
    =========================
    2007 H2
    2003 H3 Adv/Lux (sold)
    2007 Mustang GT Convertible Premium
    2007 Harley Street Glide
    2016 Harley Night Rod Special

  3. #3
    Low Profile
    Join Date
    Nov 2011
    Location
    WI
    Posts
    145
    Thanks
    24
    Thanked 16 Times in 16 Posts
    Found this as maybe a starting point. What do you guys think
    https://www.autoanything.com/exhaust...A3013A0A0.aspx


    Sent from my iPad using Tapatalk

  4. #4
    Low Profile
    Join Date
    Nov 2011
    Location
    WI
    Posts
    145
    Thanks
    24
    Thanked 16 Times in 16 Posts
    And this to complete.

    https://www.autoanything.com/exhaust...xhaust-systems

    Looking at this and the front kit, looks like it would be all bolt up and no fab work required. What do you guys think. It looks like with the front kit, I can run any catback exhaust kit so if there is a better one Iím open to suggestions


    Sent from my iPad using Tapatalk

  5. #5
    Bald Tire
    Join Date
    Dec 2018
    Location
    VA, USA
    Posts
    10
    Thanks
    17
    Thanked 0 Times in 0 Posts
    For roughly $2,200 (if you get the most expensive selections of both products), it seems to be a highly sought after system. Gives you a low grumble at idle and barks when you step on it. I wonder what the noise is like when cruising at 70mph. Anyways, stainless steel is a great way to go on exhaust, so I would say that if you're okay with dropping the money on it, pick it up and let us know how you like it!

  6. #6
    Low Profile
    Join Date
    Nov 2011
    Location
    WI
    Posts
    145
    Thanks
    24
    Thanked 16 Times in 16 Posts
    I guess we will find out. I shopped around to get a little better price but I did go with both kits. All the reading I could find on here and the interweb looked like the dynatech was a really good kit and well worth the money. Now itís just a waiting game for everything to show up. I thought about getting a new air intake tube like docs cause Iím just running stock with an afe filter but in researching it doesnít seem like it would make a difference.


    Sent from my iPad using Tapatalk

  7. #7
    Bald Tire
    Join Date
    Dec 2018
    Location
    VA, USA
    Posts
    10
    Thanks
    17
    Thanked 0 Times in 0 Posts
    K&N intakes are also good. I'm going to be doing an airflow (intake and exhaust) upgrade on my H2, then run it over to the dyno shop to get it tuned for the differences and see if there's any actual improvment

  8. #8
    Low Profile
    Join Date
    Nov 2011
    Location
    WI
    Posts
    145
    Thanks
    24
    Thanked 16 Times in 16 Posts
    Since we basically have a cold intake already and with the higher flow afe filter, the only missing was a straight tube vs our baffled tube system so figured it really wouldnít be noticeable changing out the tube. I have an in tune 2 so eventually will get a custom tune instead of just running the stock tunes on the in tune.


    Sent from my iPhone using Tapatalk


 

Similar Threads

  1. H3 Monsoon System
    By the_real_hacksaw in forum HUMMER H3 2006-2010; H3T 2009-2010
    Replies: 18
    Last Post: 02-14-2018, 08:42 PM
  2. AWD System Question
    By SolidusJ in forum HUMMER H3 2006-2010; H3T 2009-2010
    Replies: 12
    Last Post: 05-30-2017, 04:24 PM
  3. Does anyone have a FULL MagnaFlow exhaust system?
    By crwalkerasla in forum HUMMER H3 2006-2010; H3T 2009-2010
    Replies: 7
    Last Post: 04-19-2016, 01:55 PM
  4. GM Performance Touring Exhaust System #17802015
    By 08SolarFlareH3 in forum HUMMER H3 2006-2010; H3T 2009-2010
    Replies: 2
    Last Post: 12-12-2011, 08:38 PM

Bookmarks

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
  •  
Logout