I'd like some opinions on the best mods for your buck...
I was contemplating a z tube and k\n filter (about a C note for 15 hp)

 

pleaum spacer = 250-300
Z-tube Stillin high flow combo = 350i sh

 

more like a c-note for an unnoticable amount of horsepower, but a very nice sound.

 

^^^^^+1

 

what is the spacer....is it a throttle body spacer?

 

A spacer raises the upper portion of the plenum. I believe it acts in a similar way as a throttle body spacer.

Do a search for plenum spacers. They are a great performance improvement for the amout of money spent.

There are a few Canadian members that have installed spacers on their G's and are very happy with it.

www.motordyneengineering.com


B.

 

Spacer only works on NoN-rev up engine!!!!
Any 05+ MT will have no increase in HP!!!

 

Yah, but the MT gets the REVup kit... best low budget performance mod yet!