This is a perfect piece to add to your Focus ST. The factory Downpipe is restrictive and heavy. By adding a 3" downpipe, you will gain HP and increased turbo spool. Made of full T304 stainless steel and comes with our limited lifetime warranty for the original buyer.
Please note that this product is for race and off-road use only. It is not CARB certified, therefore it is not legal for use in California or other states adopting California emission standards. Not legal for use on pollution controlled motor vehicles; not intended for highway use.
