Im pretty sure this has been discussed, so i searched and searched and found alot of good info, but not an exact answer like i was looking for. So, I have an 07 350z the only mod being k&n dual intakes (bad choice, i know).....what plenum spacer with get the most hp for my car?

 

For an 07 HR def a HKS Iso thermal Motordyne AEM Spacer

 

That's ridiculous. Instead of the HKS Iso thermal Motordyne AEM Spacer I would get some negative cambers.

 

Dang it David u always beat me.... But yea +1 on negative camber spacer.

oh btw

https://my350z.com/forum/forced-indu...bo-2007-a.html

 

I just came across a post that says that the HR's prob wouldnt gain anything from the PS? This true?

 

Link Please?

 

there are no spacers for 07 + cars as they have a totally different intake manifold

 

lol at this thread.