WTB new boost gauge, and wide band a/f gauge

need some new gauges. not sure about this koso digital boost gauge that came with the car. gauge goes to some weird box under the dash and have no idea what it does.

looking to get a wide bank a/f gauge as well as i am in need of a tune i believe and am going to be looking into some kind of aft control

hard for a newb like myself to know what to get..
 
not tryin to be "that guy" but you can get a analog brand new for 161 plus free shipping OR the same exact model for 168 free shipping... just food for thought for pricing
 
I just looked up about 5 different websites that sell the AEM digital wideband and they were all $199 and up. The analog may be 160, but I highly doubt the digital is sold anywhere that low.
 
You can also find Greddy and HKS blow off valves for cheap on ebay... but they are knockoffs. Can't say for sure if that one is, but just a warning.
 
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