Well...CAS is having issues. If you should ever need a fix, a new pipe, etc...plus maybe never getting the piece I wouldn't chance it. I had a V2 previously and it worked great! Nice fit and all. I now have Jack's FM and love it! Better fitting pipes without needing all the extra hose material to make the connections. So far I get insta-spool and it rocks! I did some comparisons on the V2 vs. Cotton's before I shipped the V2 out to its new owner and Jack's intercooler even weighed a little less even though it was much bigger. The tank 90's where the hoses slide on are nicer than the V2. Besides that if you know Jack he is great to deal with and if you should ever smash a pipe you can get one from him in reasonable time rather than waiting and maybe it never shows up eek! That pretty much covers the V1 too as it is just an extended version.
As for the PTE unit it supposedly works well but the end tanks block the radiator some unlike Jack's or the CAS units because they are wider. People have went fast with them and supposedly the pipes fit well.
One more thing you may want to consider and that is the IC testing "The Source" did at my local track (Cecil County). Of all the IC's tested Jack's was tops. Real world data and results. Besides that Jack is hauling butt with it headbang Soon to be 8's cheers