Quote:
Originally Posted by Eccentric
sick numbers on that m3 site. i'm convinced
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With a good euro header tune Id say you get another 10-15 horses too. Even though the light still came on, I could feel a difference in power(longer torque curve too in the midrange) from the stock DME with headers compared to the DME with a Euro map(ESS). So I believe 30-35 HP gain is possible. Wish I would have baselined my vert and we would know but I was impatient and put the headers on as soon as I got them
On a side note, good luck finding authentic JVT headers at this point. They are scarce and the no-name Ebay headers are hit and miss with fitment and flange straightness and thickness. TMS has a set of stepped headers for our cars that is well made yet pricey but still cheaper than SS or AA(the only other ones that are confimed to fit without a hammer or a grinder). If I choose this route again these will be the ones i get. Ceramic coated too.
http://www.turnermotorsport.com/html..._ID=TMS.BEH799