I've questioned Vast many times in regards to their Piggies, plus talked with many people that have them installed and everyone tells me they are incredible andfor a fraction of the cost of aftermarkets like APR or Milltek.

Vast Performance will hollow out the precats which are egg shaped and are located directly behind the turbo's. This willeliminate excessive heat behind the turbo plus it will allow exhaust gases to flow freely through the DP.Vast will weld shut the existing O2 bung in front of the main cats and relocate a new one after the main cats. This will eliminate any CEL. This is an identical process of how the aftermarket DP's are produced at more then triple the cost (Milltek $2K). This will give you an additional 20Hp at the crank. I can't wait to get mine!

OOOO