Stillen Headers on 370z

semtex

I don't think it's my responsibility to do R&D for Stillen. Let me put it this way, if Stillen puts a product out there and says 'we tested this and got xyz gains out of it', then I'm happy to take the plunge on good faith and order it, even if there aren't any 'independent' dyno figures out yet. Indeed, that's basically what I've done with their exhaust and their G3 intake. But if I'm not mistaken, Stillen hasn't tested their own headers on a 370Z yet. They have them listed for sale for the 370Z, yet when I click on the icon to look at the dyno chart, it's for a G37. That alone makes me raise an eyebrow. Now add to this we've got RelentlessRY telling us that he tested them and lost a bunch in the mid-range. That's red flag #2 in my mind. He says he talked to Josh and they think the reason this is happening is that it's bottle-necking at the factory Y-pipe. Okay, sounds reasonable. So Stillen should test that theory and bolt it up to their cat-back exhaust as part of their R&D. They're the manufacturer with an R&D budget, after all. I'm just a lowly consumer.

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"There are no small accidents on this circuit." -- Ayrton Senna
316.8whp & 248 ft/lbs (Dyno Dynamics) | 319whp & 256 ft/lbs (DynoJet) (04/23/10)
Stillen G3 CAI, CBE, Pulley / F.I. LTH / GTSpec Ladder Brace / Setrab Oil Cooler / UpRev-tuned by Forged Perf.