which plenum spacer 5/16 1/2 inch or 5/8

[sexcpr69]

okay i was wondering which plenum spacer would be the best choice for me i have everything stock 2006 g35x 4door whats the difference between all the sizes in space?

[joe603]

I'd recommend the 5/16's. You will be able to keep the engine cover (without modifying anything). Generally, the 5/8ths is used when FI is a future mod.

If you have the 6MT, get the MREV2...it's one of the best mods you can do!

[kmckis1029]

+1

5/16th for the auto

you going to love the new engine sound if you only do one mod to your car it should be a 5/16 spacer for the g35 vqde