I have enough money for either a Crawford Plenum or some headers. Which will give me the most gains for the money? I have stock exhaust and a z-tube/popcharger.Thanks

 

Unless you plan to install them yourself, headers install usually costs about 400-600 bucks. That said, unless you get crawford headers, I wouldn't waste the time, money or trouble. Headers don't have a very good gain:$ spent ratio. IMO get the plenum.

 

+1

Go with the plenum or AAM spacer, easy install, roughly the same gains...

Zquicksilver

 

go crawford

 

CRAWFORD!!!!! get the plenum and if you can afford it go big time and get the headers!

 

Yup. $$ to gains, go plenum, especially if you do your own work.

 

thanks for the replies, is there any difference between the motordyne spacers and AAM when it comes to quality?

 

I disagree with what others have said. Plenum will give you more power for the dollar, but ultimately coated headers will give you more power gain than any other single bolt-on N/A mod, albeit at a much higher cost per dollar. If you only afford one, get the headers, but the coating will be $200, and the install will be around $600.

 

Doug charges $400 to install his headers.

 

do it yourself for free

 

Headers. One of the best NA mods you can do, and one you can do yourself if you're ambitious and have an afternoon to kill.

https://my350z.com/forum/showthread.php?t=146062

 

Not Crawfords. They are a B****.

 

what about a plenum spacer and some resonated test pipes? would that be a good combo to go along with my popcharger and z tube?