I am late to this party, and I am on this list and intend on purchasing these asap. But a shop by me picks up power and torque in almost every single uprev tune they do... sometimes as much as 15hp...
On the graph it claims the tune made no power ... isn't that hard to believe.. so the increase in the dyno posted in LTH and tune... solid gain, but nothing earth shattering at all..
most times a tune will give you power across the entire band as well... kinda disappointing to me , but what do I know.. I'm still down for them and will post my before and after as well... I will have uprev tune done tomorrow and I plan on posting my before/after and impressions... I will than go back to same shop to install these headers and touch up my tune... I am sure time will show plenty more dynos but that kinda leaves me with a little more to desire with those gains being LTH and tune
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09 370Z 6M PW - FBO Best 1/4 mile = 12.926 @ 109 SOLD -- 08 BMW 135i - FBO 12.1@120mph SOLD -- white 09 e92 335 Coupe Mtech - 11.9 @ 119 :-)
Last edited by chuckd05; 03-29-2010 at 10:36 PM.
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