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    • The only equal length long tube S85 V10 headers on the market - Infinity Design, +33 whp

      There are various takes on equal length headers. In the modern turbo world, long tube equal length headers are not as important factors in manifold design. When trying to squeeze out every last naturally aspirated horse, things are different.


      This is the only equal length long tube option on the market for the S85 and it is from Infinity Design.

      How do they perform? Take a look here. Red is stock, Green is with headers, and Blue is headers + software:


      33 whp from headers alone is big on the S85 5.0 liter V10. Picking up nearly ~70 rwhp with headers and software tuning is incredible.

      A great way to get more power out of the S85 if keeping it naturally aspirated.

      The Infinity Design Headers were designed through extensive research and hard work to create the perfect system.

      The unique design incorporates equal length primaries and an F1 merge collector. Coupled with precision machined slip joints to ensure a leak free system. CNC machined head flanges with a 65mm outlet allowing the system to mate to the OEM section 1 / CAT section and any system designed to fit the original headers. Using large bore 42mm pipework with a 1.5mm wall thickness this system represents a significant upgrade to the stock system even with the CAT's removed.

      The entire system is made from T304 stainless steel and is purged welded TIG.

      Why Equal Length?

      As with many headers on the market many enthusiasts have seen the glorious V10 sound track changes with unequal length primary tubes. By keeping the primary tubes close to equal the sound track is retained through the entire rpm range with the major added benefit of excellent throttle response and partial load and low rpm torque.





      This article was originally published in forum thread: The only equal length long tube S85 V10 headers on the market - Infinity Design, +33 whp started by Sticky View original post
      Comments 6 Comments
      1. Eleventeen's Avatar
        Eleventeen -
        That’s a really nice gain from headers and a tune on an N.A. engine. They probably make that V10 sound $#@!ing phenomenal, too.
      1. crapinternet's Avatar
        crapinternet -
        where does stock + software land you on that dyno?
        Also I sure AF hope that's wheel spin from 3700rpm to 5100 rpm on software+headers.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by crapinternet Click here to enlarge
        where does stock + software land you on that dyno?
        Gives you an idea:

        Click here to enlarge
      1. N63TU/EA888's Avatar
        N63TU/EA888 -
        There is something wrong in the tuning for the Header + Software (Blue). The curves dip between 3600-4200 rpm. While, it looks more smooth with Header only (Green).
      1. DANKimball's Avatar
        DANKimball -
        we need a video
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by N63TU/EA888 Click here to enlarge
        There is something wrong in the tuning for the Header + Software (Blue). The curves dip between 3600-4200 rpm. While, it looks more smooth with Header only (Green).
        I'm not sure on the dip in the second graph.

        Wheelspin likely in first or some pickup issue as it happens on all three.