Exhaust New Axelback Exhaust With Either H-pipes Or A Cai Unit

Discussion in '2005 - 2009 Specific Tech' started by mcook4076, Oct 9, 2012.


  1. mcook4076

    mcook4076 New Member

    Joined:
    Oct 9, 2012
    Messages:
    15
    Likes Received:
    0
    Trophy Points:
    1
    Im looking into replacing my exhaust with an axelback exhaust on my 2008 GT/CS 5 spd 4.6L. First whats the difference between catback and axelback? Also, for now all Im wanting to do is just make my car louder. Would I benefit more with getting H-Pipes or does my car alread have them? Or should I go ahead and get a CAI with the tuner and the exhaust?
     
    #1
  2. joe_momma

    joe_momma Member

    Joined:
    Nov 30, 1999
    Messages:
    115
    Likes Received:
    7
    Trophy Points:
    19
    Cat back runs from the cats (in front of the rear axle) out the back. Axle back just replaces the mufflers (behind the axle) and the tips. On a stock car or even a mildly modified one, there is no benefit to getting a cat back system. If you're just after more sound, axle back is the ticket. Our cars have factory H pipes. You can replace that with an off-road (no cats) or a catted version; there are also X pipes available on both flavors. H "tends" to give a more traditional muscle car sound, while the X "tends" to be more raspy sounding. The factory exhausts actually flow very well on these cars; they just aren't very loud.
    As far as a tuner and CAI, they are perhaps the best bang for the buck mod you can get, aside from gears. You can expect a realistic 15-25HP gain, at the wheels, from a CAI and tuner (depending on tune). Also, just about any mod that you do will require a new, updated tune so the tuner is a must have. Most vendors will provide free updated tunes if you purchase the tuner from them (American Muscle, Brenspeed).
     
    #2
  3. mcook4076

    mcook4076 New Member

    Joined:
    Oct 9, 2012
    Messages:
    15
    Likes Received:
    0
    Trophy Points:
    1
    Yeah I LOVE American Muscle. It comes with free tunes for life from Bama Tunes. So pretty much just do the CAI and an axle back?
     
    #3
  4. joe_momma

    joe_momma Member

    Joined:
    Nov 30, 1999
    Messages:
    115
    Likes Received:
    7
    Trophy Points:
    19
    Yeah, that would be a good starting point (CAI, tuner, axle-back). Down the road, if you want more sound, you can go long tubes and x/h pipe of your choice.
     
    #4
  5. mcook4076

    mcook4076 New Member

    Joined:
    Oct 9, 2012
    Messages:
    15
    Likes Received:
    0
    Trophy Points:
    1

Share This Page