See: http://www.the370z.com/members-370z-...ml#post2862501

Well hopefully it's not related to the pulley as mine is being installed now, lol. Did you switch the pulleys over with your other mods to the new engine?

Hmm that's a tricky question, I think I'll respond and link in my journal thread since it's noteworthy.

Glad to see that you're back up and running...getting ready to install my Pulley kit, but before I do, i wanted to double check with you that the engine failure that you had was in no way related to your pulley set-up.

Cool, I guess I'll pull the trigger then, thanks for the info!

There's a thread around here somewhere with some real results. You will want to re-tune after installation of any major part for maximum benefit, but yes there are results on a tuned car.

I have Stillen G3 intakes, F.I. LTH's, F.I. CBE w/ 18" res., 4.08 gears and an UpRev tune. I'm wanting to stay N/A and am looking to add as much power as possible which brings me to the M370. The only worry I have is if i wont gain anything bc i'm already tuned. Do you know anyone (yourself included) that has seen gains when they were tuned prior to the install of the M370?

I think it's a decent pickup in area under the curve, and what little people have lost is so close to redline it hardly matters. Exhaust and intake is worth more, but if you're trying to squeeze all you can from NA bolt-ons, it's another item on the list.

Hey man, I'm thinking of getting the Motordyne M370 manifold in the next few days and was wondering how your experience has been with it. Was there a noticeable gain? Did you loose peak HP? Is it worth the $?