Results 1 to 5 of 5

Thread: 3 inch Exhaust Vs. 2.5?

  1. #1
    Ride
    VT Calais International S/C

    Join Date
    Nov 2009
    Location
    Melbourne
    Posts
    133

    Default 3 inch Exhaust Vs. 2.5?

    Hi everybody (hi doctor nick),
    Just a few questions about exhausts. I've been doing some research about them and everyone is pretty set that the 2.5 is the way to go for sound and power (although some say 2.25) or even twin 2.5's. I get why this is the case due to back pressure and exhaust flow. I have a 90' V6 with chip, tune, pacemaker extractors and a single 3 inch Redback cat back with one high flow rear muffler. My question is am I seriously losing a significant amount of power compared to if i had a 2.5?
    At the end of the day i really don't care, I love the sound of it and its a V6... Standard 8 would destroy it anyway. Its just because my mate with a standard 89' VN with a 2.5 exhaust (no extractors) thinks he'll destroy me.
    Thanks guys.

  2. #2
    GTP 85's Avatar
    GTP 85 is offline 291 hp @ the wheels
    Ride
    VS track car & VS SSenator

    Join Date
    Aug 2006
    Location
    Adelaide, near the bay
    Posts
    1,403

    Default

    Its not the ideal size for a n/a 6 banger, but if you like the sound and it goes good why change? ideal would be a 2.25, but most people get 2.5 as it allows for a few mods down the track if you get excited
    Hit me up with some reputation points if i've helped you out! (Star in the bottom left!) Cheers!

    GT Performance RUF 231- NA 3.8L- 13.30 @ 103 Mph... So far... Cam, compression and revs! MY CAR>> http://forums.justcommodores.com.au/...tml#post471410
    Daily VR SS: http://forums.justcommodores.com.au/...ite-vr-ss.html

  3. #3
    Ride
    VT Series 1 Berlina Wagon

    Join Date
    May 2010
    Location
    Croydon, Vic
    Posts
    157

  4. #4
    Not_An_Abba_Fan's Avatar
    Not_An_Abba_Fan is offline Exhaust Guru
    Ride
    HSV Senator VTII

    Join Date
    Aug 2006
    Location
    Bunbury, WA
    Posts
    9,098

    Default

    Exhaust on a V6 is more about sound than power anyway. If you like the way it sounds, keep it.
    Visit my Facebook page



    Quote Originally Posted by DannyboyDS View Post
    I burnt my hand in a nasty way once using method one but thats because i'm a twat.

  5. #5
    Ride
    VT Calais International S/C

    Join Date
    Nov 2009
    Location
    Melbourne
    Posts
    133

    Default

    Thanks guys, thats what i really thought. I'm really not too interested in putting anymore money into a 6 to get more "performance". I'd much rather save for a V8 : )

    Oh, and the mate who thinks he'll beat me is Defected. :P

Similar Threads

  1. 3 inch tip on 2.5 inch exhaust?
    By English in forum VR - VS Holden Commodore (1993 - 1997)
    Replies: 5
    Last Post: 14-08-2010, 01:06 PM
  2. [SA] 2.5 inch exhaust vn vp
    By VPS2 in forum Parts And Other Items For Sale
    Replies: 4
    Last Post: 10-06-2009, 09:37 AM
  3. Single 2.5 inch exhaust vs dual 2.5 inch exhaust
    By batemada in forum VY Holden Commodore (2002 - 2004)
    Replies: 26
    Last Post: 02-02-2009, 12:31 PM
  4. 2.5 inch exhaust from a VX will it fit my VY?
    By batemada in forum VY Holden Commodore (2002 - 2004)
    Replies: 5
    Last Post: 13-08-2008, 10:03 PM
  5. 2.5 inch exhaust or 3 inch
    By Zuicider in forum VN - VP Holden Commodore (1988 - 1993)
    Replies: 5
    Last Post: 07-03-2007, 11:24 AM

Tags for this Thread

Posting Permissions

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

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72