Section : Exhaust

Gt6 back box onto a 1500 Spitfire, (will it fit ?.)

Posted By : Vivian Newlove, 26-Jun-2006, 10:38pm

• Gt6 back box onto a 1500 Spitfire, (will it fit ?.)

  Posted By : Chris Taylor, 26-Jun-2006, 10:48pm

  You may find the pipe diameters are different, bigger for the 2 litre engine. If not, then physically a GT6 box should fit. You could probably get adaptor pieces to fit one to the other, but this might upset gas flows and change the exhaust sound or even affect engine running, but not as much as the change from standard to full sport system. You may need to change carb needles again?
  How about fitting the semi-sport exhaust system? May be a little quieter? Anyone out there got experience on the 1500 system?

  • Gt6 back box onto a 1500 Spitfire, (will it fit ?.)

    Posted By : Mark Astley, 27-Jun-2006, 06:10pm

    Hi,
    The semi sports back box is not a lot quiter than the full sports, it is definately louder than a GT6 box.
    The semi sports box is the same layout as the GT6 box as my old one is now on a GT6 but needed sleeving down from the GT centre pipe, however this still proved less restrictive than a standard GT6 back box. There shouldn't be any problem fitting a GT6 back box on a Spit, you'd probably need a GT6 centre pipe to mate onto the extractor manifold (assuming you've got one) or to mate the back box onto a new centre pipe and sell the old full sports system complete.
    
    Yours
    mark

• GT6 back box onto a 1500 Spitfire, (will it fit ?.)

  Posted By : Danial Phoenix, 27-Jun-2006, 00:11am

  so what you doing with sports one? will it fit a Herald? know will need adaptor, nut can't see why it shouldn't.