I'm thinking either on the small square blank next to the key hole on the dash but worried it might not be strong enough. other choice is next to cig lighter or on the trans tunnel somewhere.

 

Are you using a wilwood kit?

I just got mine in the mail the other day and even though I own an NA, I was thinking about the knee panel under the dash. Not directly under the wheel but just above your left shin/knee area. Its not like your gonna be making adjustments all that often anyway. I wouldn't wanna look at the big blue **** all the time.

 

I actually got the tilton unit because I ordered a much of little items from one spot. thought it was going to be red, it is yellow. whatever. I hooked it up and mounted in by the cig lighter. the way I mounted the valve, to use the stock bracket mount point it will not work, too tight of bends. I took it out and routed the line to the passenger side so the line only needs to make one 90 deg turn. so I've not made a bracket yet or secured the line but I'm confident this route will work much better. thinking about using some graphite lube in the line, they caution against the use of oil. think I'm going to mount it right below the cig lighter. a smooth routing is critical. another option might be inside the glove box if you are worried about how it looks.

depending on how you mounted the valve you might have other options. I'm also going to need to modify the bracket on the heat shield for the turbo. boo to FM for not making a heat shield that will accommodate a proportioning valve that they include with their brake kit.