No in depth info on the T/A in the race, but it said TTi which is NOT the STS rear mount kit. TTi usually means its the Inconn twin turbo kit, two smaller turbos that are in the engine bay mounted down way low, but relatively effective. That company tanked long ago though. There are a few other manufacturers who do single and twin in-engine-bay setups but they are rare and they cost you. The STS kit is the most practical as far as performance vs cost goes, and it works really well. I've even played around with the idea of doing it myself, but I think if I go FI I'll just get an ATI blower instead. Turbo is cool, but I'm an auto so I dont get much BOV fun, and the whine of a blower is something I've always liked.