I run the angus kit with some changes , such as turbo, wastegate and AEM EMS.
Last year I ran a 40R, the car made 450whp @11psi on a full tune on 94oct gas. The car shaw about 10-12 track days on this set up and had no trouble . Besides some high AITs on the very hot days, but is spected when running such a small intercooler.
The kit was ok throght out the season but then again there isn't much to go wrong with it, if you get it just replace the couplers , since the ones that come with the kit will start "breathing" after a couple of track days (air comes trough the actual coupler)
At this moment I have replaced the 40R with a PT62-66 BB Turbo , and the car at a half tune is putting 440whp at 8psi no timing and not meth yet. The response is immensely faster the power will be about 50-60whp more when done .
Hope this help,
The kit is simple but it works, I'm not competing for money and I'm not even close to push the car at what it can do with 450whp so this kit is enough for me.
If I had disposable moola , I would defenelly look into the SOS there is no comparison on quality at all .
But....
-MSR