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Dyno Test Results and Conclusions

Dyno Results

As usual, we strapped to car to the Dynojet belonging to Dynolab, Inc. of Marietta, GA and set forth with our battery of tests. To measure the gains of the header, we took another baseline test a few days prior. The car hadn't changed under the hood since the last time we dyno tested it (AEM Short Ram), but since nearly a year had elapsed since those tests, we decided to take another baseline. We were a little surprised (as some of our readers who remember last year's results may be) to see that the car was down about 4 horsepower from the figures we saw last year, but there are a number of variables that could be involved. When we returned to Dynolab with the header installed (and all else the same) we were pleased to see a peak figure of over 189hp to the wheels, a gain of around 8.5 hp. For these tests we reset the ECU after strapping the car to the rollers. For every dyno test we perform, to eliminate variables introduced by heat soak, an OBD-II scan tool is used to monitor and stabilize the coolant temps to 180F before each run. Additionally, a fan is aimed towards the radiator to ensure proper cooling during the runs.

Conclusions

I have to say I'm quite impressed with the gains obtained from this relatively inexpensive modification. Coupled with the AEM Short Ram Intake System, the car is noticeably quicker than stock. And it gets even better if you upgrade to a Hondata ECU Reflash. Add in the relative ease with which it is installed, and you have an all around winner. The only question that remains is regarding the durability of the header itself. A quick Google search reveals that some people have reported cracked welds or other flaws with their DC Sports TSX headers. But we also noted that other people have mentioned that DC Sports has implemented some manufacturing changes which address this problem. We have asked them directly about this issue and are waiting to hear back from them on it. In any case the header we received saw nearly 1000 fairly hard miles on the project car and when we removed it there were no signs of any stress, which was a good sign.

DC Sports Ceramic-Coated 4-2-1 Header for Acura TSX
Test Date:March-April, 2005
Miles Tested:~1000 miles
MSRP$435.24
Measured Gain+8.5hp, +4.1lb-ft
Weight12.94 lbs
Weight Savings (vs. Stock)8.4 lbs

Pros
  • Affordable
  • Noticeable improvment in performance on the dyno and on the road*
  • Little noticeable change in sound level*
  • Cons
  • Not offered in stainless steel
  • MIG welded joints not as pretty as TIG welded joints of (pricier) competitors
  • * Note: tested in combination with AEM Short Ram Intake system.

    Video Clips

    More Information

    Please be sure to visit DC Sports' website to learn more about their TSX headers.
    Hondata.com

    Special Thanks

    Thanks once again to Dynolab of Marietta, GA for providing us with the services of their dynojet. We would also like to thank DC Sports for providing the header used in this test.


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    Subject Thread Originator Replies Last Post
      Headers Cracking?
    nindoo 1
      Hey jeff, time for some forced induction!
    LilChowWow 1
      HHC5022 for '03 K24 Accord
    civic_cx_92 2
      Why was the headers removed?
    civic_cx_92 2
      Plans to test other headers?
    MrChad 1
      Why wasn't this done with Hondata?
    Pauly1 2
      Little explaining!!!!
    6SPDTL 2
      What other options are there?
    gahnrud7 0
      Impressive
    99SI 0
      Amazing...........TSX
    Acura fanatic 0
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