You can just get anyone and put it on you fuel return line. Here is a pic of mine. They are pretty cheep. They are like $50. The science of speed one your paying an extra $150 for fittings and for a mounting system that they designed. Which is nice but is really not needed.

 

Sorry for a random post but will a Supercharged AP1 at 550hp running on e85 blow my mind if i'm used to driving a stock AP1?

 

LOL! Yes, an extra 350 hp at the wheels will blow your mind - warp speed, tunnel vision, high heart rate mode.

 

Oh man you are gonna be so disappointed when you finally get that dyno print out