Is it a stock engine with new heads?
1. Some are factory,some are done by a machinist on single plug head.
Is it just a type of head work?
2. Not only heads,but ignition system change as well.
Can I do It to a 2.4T , what engines can do it?
3. Yes, you will get a performance bump, but it allows for increased compression ratios above 10 to1 for even more performance.
What does it do the the life of the engine?
If you are experiencing detonation that is damaging you engine it will save it. If not then ther is no increase in engine life(of reduction)
What is the cost on such a project?
Some may argue but it starts around $3000.00 on up.
Is this a good way to hot rod my T
Not unless you were going to change engine internals(bump compression)
DO you have a pics and specs
Do a search, you should pull up some pics.
Steve at rennsports site
http://www.rennsportsystems.com/2a.html
Aaron