what about this kit from drift motion?? is it any count?

[Treece-mk2supra]

when i get the money i was thinking about getting this kit. or one like it on drift motion. what AR should i get? im going for over 500hp.... i need to know would this kit hold up?

http://store.driftmotion.com/static/i-7m-gte67mmturbokit.php