Off road exhaust

Discussion in 'Road Racing' started by [email protected], Mar 8, 2014.

  1. Pete@FTR

    [email protected]

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    I'm going to fab up a watts link soon and have decided to just have a side exhaust made and make everything easier clearance wise. What do you guys recommend since smog is not an issue? Just run straight pipes from the headers or do most people run a h pipe and some mufflers or what is standard? I'm completely clueless on this

    Thanks
     
  2. RichV

    RichV Well-Known Member

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    I had pipes out the catback just 90* and exit before the rear wheels. No mufflers, just loud. :)
     
  3. the5.ohh

    the5.ohh Legend

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    On a 4.6 why not throw a set of Magnapacks on with just straight pipes before it (no midpipe). No muffs is loud but you might not like the sound after awhile.
     
  4. 96blak54

    96blak54 Legend

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  5. KillNThrill24

    KillNThrill24 Legend

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    If you're semi good at fabbing, which I get the hint that you definitely are, I would run an x or H of your choice and instead of running intermediate pipes get some short ball flange pipes and attach the mufflers directly to the end of the x or H. Then you can probably 45 it out in front of the rear tires, depending on muffler length of course. I know it's probably not a huge deal but I've always thought the 90 in side exhausts killed some flow. So if I can avoid that I will, personally.
     
  6. OnyxCobra

    OnyxCobra Legend

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    i've seen it done this way a couple times. obviously the type of muffler you chose will play a factor


    [​IMG]
     
  7. Pete@FTR

    [email protected]

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    Good info guys [MENTION=8293]OnyxCobra[/MENTION] that looks like exactly what I'll do. [MENTION=14727]96blak54[/MENTION] I'll check those out they look pretty sick.
     
  8. ba#97

    ba#97 Well-Known Member

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    I'm intrigued on this as well. only big thing is making sure the cars meet db limits at the tracks. but most tracks out here are 103db which is pretty loud. yet another reason I am keeping my Laguna Seca experience to gran turismo. lol.
     
  9. white95

    white95 Administrator Staff Member SN95 Supporter

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    Vibrant resonators, thank me later..
     
  10. Alchemy Will

    Alchemy Will New Member

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    Yep, seconding this one.
     
  11. Pete@FTR

    [email protected]

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    I'll check it out, I found a performance muffler shop in Sacramento that I'm going to take the car to and have them make me a custom set up. From what I saw they do really nice work and they seem to know their stuff as far as meeting track rules and sound limits etc


    Sent from Tapatalk for iPhone
     
  12. 410sn95

    410sn95 Active Member

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    Or Dynomax Race bullets.
     
  13. LilRoush

    LilRoush Active Member

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    I love the Spin Tech 333SCS mufflers for side exit.
     
  14. Burninrock24

    Burninrock24 Active Member

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    Back to your original question, youre going to want some sort of crossover pipe for better exhaust scavenging. Otherwise you basically just have 2 four cylinders with goofy timing as far as exhaust is concerned. And scavenging is your best friend.
     
  15. Pete@FTR

    [email protected]

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    Planning on still having an h pipe, like in the picture above. Thats what youre talking about correct?
     
  16. 96blak54

    96blak54 Legend

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    I choose the h pipe for the blurble.
     
  17. Burninrock24

    Burninrock24 Active Member

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    Yep! Techincally an X will give you better scavenging, but just having something there is what matters most.
     
  18. 96blak54

    96blak54 Legend

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    Scavenging is debatable. ...lol
     
  19. Burninrock24

    Burninrock24 Active Member

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    Thems are fighting words lol. You need me to break out some references?? [​IMG]
     
  20. Caboose302

    Caboose302 Well-Known Member

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    How about a couple of these mufflers?

    [​IMG]