on the other hand, you still need a boost controller even if you're running on stock boost so you can monitor your boost levels. it'll tell you if you have boost creep or if your boost levels spike.
i'm using a blitz boost gauge right now, bought it for 3k (2nd hand).
you just want boost guage? or boost guage and boost controller? may i ask what mods you got in your car? do you know whats the maximum psi you can run your car?
online pruchase are always the best price.ebay is even better.
i got mine from ebay and i think i paid 35 bucks for my boost gauge.using autometer pro-comp edition for my boost,nitrous and air/fuel ratio.