Results 1 to 6 of 6

Exhaust Installed

This is a discussion on Exhaust Installed within the GTO forums, part of the Vehicle Specific category; Over the weekend I installed the Flowmaster American Thunder catback and am very happy with the results. There is a ...

  1. #1
    Junior Member
    Join Date
    Sep 2009
    Location
    Livermore, Ca
    Posts
    32

    Blue
    2004 GTO

    Exhaust Installed

    Over the weekend I installed the Flowmaster American Thunder catback and am very happy with the results. There is a noticeable difference in the throttle response and acceleration during take off and during cruising speed and it sounds awesome. This was a good purchase.

  2. #2
    Member TheJudge05's Avatar
    Join Date
    May 2008
    Location
    MA
    Posts
    110

    Yellow
    2005 GTO M6 - One of 498

    Quote Originally Posted by Whatarush View Post
    Over the weekend I installed the Flowmaster American Thunder catback and am very happy with the results. There is a noticeable difference in the throttle response and acceleration during take off and during cruising speed and it sounds awesome. This was a good purchase.
    Is it a true catback or just the mufflers? Either way, that is great. I just recently posted that I've only done the K&N CAI and the Magnflow catback and I dynoed 371 rwhp, considering stock is about 350rwhp for a stock LS2, that's a true 20+ rw or more. I can feel how quickly the motor rips thru the rpms now, incredible change, I'm sure you are feeling the same. Did you do an intake mod?

  3. #3
    Junior Member
    Join Date
    Sep 2009
    Location
    Livermore, Ca
    Posts
    32

    Blue
    2004 GTO

    It is a true catback. I have a K&N CAI as well. That was my first mod to the car.

  4. #4
    Member derbs's Avatar
    Join Date
    Jun 2006
    Location
    iowa
    Age
    30
    Posts
    276

    IBM
    04 GTO

    Those are some damn good numbers there. I've never heard a gto with flowmaster in person but have on youtube they have a nice little rumble to them. I just changed mine out last week from the spintech pro streets to the SLP loudmouth 1 best sounding exhaust ever. I'm running long tubes no cats and a yank PT4000 stall trust me cops will be following you with this set up lol

  5. #5
    Member TheJudge05's Avatar
    Join Date
    May 2008
    Location
    MA
    Posts
    110

    Yellow
    2005 GTO M6 - One of 498

    Quote Originally Posted by derbs View Post
    Those are some damn good numbers there. I've never heard a gto with flowmaster in person but have on youtube they have a nice little rumble to them. I just changed mine out last week from the spintech pro streets to the SLP loudmouth 1 best sounding exhaust ever. I'm running long tubes no cats and a yank PT4000 stall trust me cops will be following you with this set up lol
    Nice Derbs, I had the SLP LM1 on my 99SS Camaro, it was awesome but had a terrible drone at around 1800 rpm, awful for just cruising the hwy at 70mph. I guess the GTO doesn't suffer from that problem. I got the Magnaflow, which seems to flow great, the x-pipe was great looking, and the shotgun pipes straight down the middle looked great. The con is, it doesn't sound like the LM1, not even close, has a nice deep rumble but is tame; I like to convince myself it's a refined sound... lol

  6. #6
    Member derbs's Avatar
    Join Date
    Jun 2006
    Location
    iowa
    Age
    30
    Posts
    276

    IBM
    04 GTO

    There isn't much drone cruising at hwy speed(70) but yea at 1800-3000 with that stall its crazy but thats how I roll

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. full exhaust installed
    By werewolf in forum External Engine
    Replies: 9
    Last Post: 10-01-2014, 08:57 PM
  2. New Exhaust Installed - SLP LM I
    By fastls1ta in forum Firebird / WS6
    Replies: 19
    Last Post: 02-06-2013, 09:31 AM
  3. Installed full exhaust
    By BirdCountry02 in forum External Engine
    Replies: 22
    Last Post: 07-21-2009, 07:20 AM
  4. Exhaust Installed... What's this brace/rattle?????
    By 5abivt in forum External Engine
    Replies: 7
    Last Post: 06-29-2009, 11:04 PM
  5. Question: Has anyone installed the Pacesetter Exhaust
    By TheJudge05 in forum GTO
    Replies: 2
    Last Post: 05-10-2008, 03:24 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
  •