Versions
Version 3 has a set timing from Valet, Stock to High Performance, with 18° through 26° degrees on 6 different settings , and boost from Stock 14 lbs, to 20lb. Each position will change boost and timing ...
When you order you tell Casper's what injectors you have and other info...
Version 4 is a custom made chip on what you want (doesn't have valet setting like the Version 3). Plus give what type convertor, turbo size, exhaust......etc.
You have 7 different timing positions and you tell Casper's what you want the boost to be set at, 20-25 lbs if you want , use your waste gate rod to lower or raise it if you want ...... Thumb Wheel controls timing only and fuel enrichment........You can tell Casper's what timing you want in what positions, (example: position 1 can be 18°, Pos.2 20°, Pos.3 22°, Pos.4 23°, Pos.5 24°, Pos.6 26°, Pos.7 28° ) ..... or whatever you want. This version is more of a race chip, like having a single race chip that you control the timing and fuel curve with a click of the switch..
Version 3 is more street and race, but not as aggresive as the Version 4...
Both have the Anti-Theft..
I got both and they work great...