Looking to add a plenum spacer to the '07 G35 coupe. The concept z 3/8" spacer is $160 shipped. The Motordyne 5/16" iso thermal spacer is $219+shipping.
Is the Motordyne worth the extra $60+?
Or if there are better spacers with good value send the info my way

 

bump

 

You should only need the Motordyne Basic which is a bit less.

 

Motordyne basic

 

there is not much difference

I think that the 3/8" is the best size - good combo of the 5/16 and the 1/2" - more even torque/HP band

 

So is the concept z a good 3/8" spacer or is there another brand I should look at? Motordyne only has 5/16 and 1/2 I think.

 

should i get a new plenum or just a spacer?

 

Spacer is all you need, I have a CZP and would buy one again without question. I live near CZP and was able to compare the 2, there is no difference other than the thickness.