project.ng my car has four rings because my woman has zero

14Nov/094

JHM longtube headers have shipped!

I received word from JHM that my longtube headers have shipped. The JHM longtube headers replace the OEM headers and downpipes; other cars have been seeing both 20-50 ft/lbs and 20-50 AWHP gains throughout the powerband. JHM reccomends wrapping the headers with an exhaust wrap, I choose another route.

Performance Coating in Auburn, WA will be coating the headers with their satin black ceramic coating; we expect to see a temperature drop of 110-120ºF.

Read more about the headers on JHM's site.

Stock B6/B7 headers:

Stock_B6-B7_S4_headers.JPG

JHM prototype headers:

JHM_B6-B7_S4_Longtube_Header_Prototype_Almost_Complete_6.JPG

034 Motorsport dyno of stock headers and JHM headers; note the vehicle dynoed was an auto. Click image for fullsize.

V8_S4_Tip_Stock_JHM_Comparison

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Comments (4) Trackbacks (0)
  1. Can't wait to see the results

  2. Good stuff!! Ditto on the results.

  3. Can't wait to see the results

  4. Good stuff!! Ditto on the results.


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