Like post said, I plan on purchasing a tuner kit next week. I have dug through hundreds of pages on here but still am looking for input. Here is what I am working with:
04 track MT with 49k miles.
stock drivetrain, valvetrain and bottom end.
V+ composite Manifold, Resonated Test pipes and Greddy exhaust.

Engine management will be Uprev
OEM R35 injectors cleaned and tested to 560cc
Walbro 255, not planning to run FRS
1 step colder NGK iridiums
Peak HP goal of 380-400whp max

My question is which trim to go with? Car is basically a garage queen 4th vehicle that only comes out to play when the weather is nice. Not looking to sink tons of money into an engine build or race it. Just want to have the power it should have come with. The Si is only going to run me a couple hundred more than the Sci, so money not a factor there. Thanks for any input or recommendations you may have.

 

Go with the SI. You will have room to grow if you want. I put down 550hp on a SI with supporting mods.

 

Will the Si running a 3.33 be comparable to the Sci running a 3.12? One thing i couldnt find is what boost I would be looking at with the Si running the 3.33 pulley. I wont be taking my stock motor past 6,500rpm

Also, the Kinetix V+ composite manifold.....will that hold up?