As much as I would love to run the long tube headers I have to smog my car every year..I always see threads of people saying shorty headers yield no gains but never see a dyno to back it up..I have seen a dyno with stillen headers that netted 12whp.. If I can pick up 20whp with the ecutek tune and headers I'll be happy.2 months we will find out if they are worth the money or not!
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Tuned by (Seb@Specialty-Z)
2011 G37 Cam'd FBO 347whp 280wtq Corn Fed 4.08 Gears
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