3" Downpipe with 100 CPI High Flow Catalytic Converterter and ultra-slim flex section.? This is great choice for the Ecoboost Mustang owner who wants increased performance but doesn't wan't to go completely catless. The 100 CPI (cells per inch) metal substrate cataytic converter dramatically increases exhaust flow over the restricive OEM catalytic converter. This is definitely one of the first mods that you should do if you are looking to get the most power out of your Ecoboost Mustang and want to have a catalytic converter.

Features include:

Direct fit for the 2015+ Ford Mustang EcoBoost
Fits both manual and automatic transmission vehicles
3" Diameter all 304 Stainless Steel Construction
100 CPI Metal Substrate High Flow Catalytic Converter
Two piece design with V-band flange for easy install
Ultra-slim flex section for reliability and maximum ground clearance
Designed to mate to the stock catback exhaust or any exhaust that mates to the stock downpipe
Also available without a catalytic converter (Part # M15-DP)?

Downpipe w/ 100 CPI Catalytic Converter 2015+ Ford Mustang Ecoboost