Quote:
Originally Posted by Trendy Exige
As I mentioned earlier about the boosted 2.0 headers porting service, I find the performance gain to be trivial. Clearing out diameter of the primary pipes can only gain so much, and I don't believe it will gain as significantly its shown on the results it provided. To me its no different than boring out the chamber in my throttle body. Perhaps a little air flow, but not by much. Its not what I am looking for. But it may be for others. 
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You haven't done your research, but suite yourself. All I know is that this guy went from 181 whp NA to 175 whp NA on a Hydra standalone EMS dyno tune after switching out from the Boosted2.0 ported header to the low-midrange oriented (catless) Weapon R race header that's also available (also only catless) for your cars as well.
2zz WR Race Header Results - NewCelica.org Forum
For a ported stock header WITH THE STOCK CAT to outperform a dedicated catless race header on the top end speaks enough for what it delivers. Unless Forcedfed comes out with their shorty header design, or you convince a vendor to start a group buy for the discontinued weapon r shorty header design, the product you want doesn't exist...unless you're willing to spend $800 - $1,175 for the overpriced TRD and Trial JDM 2zz shorty headers kinwaymotorsports offers:
KINWAY MOTORSPORTS - TRD Performance Parts and Accessories for Sport Motors
I don't think I'll ever move to Cali...