Stainless Works 15-18 Ford Mustang GT Factory Connect 2in Catted Headers - M152HCAT fits_1999-2003`Toyota`Crown If you can't hear them

If you can't hear them

Each muffler assembly has single 4

providing more efficient airflow

HKS Airflow Less Adaptor GT-R

All mounting hardware included for installation

Stainless Works 15-18 Ford Mustang GT Factory Connect 2in Catted Headers - M152HCAT fits_1999-2003`Toyota`Crown If you can't hear them2015 18 Mustang GT 5. 0L long tube headers. Factory Connect. All tubes are CNC mandrel bent for optimal flow. Made from 304 stainless steel for maximum corrosion resistance. Starting with a CNC cut 3 8" thick flanges into 2" diameter primaries, 3" slip fit collectors with merge spike, then fitting into 3" high flow cats. That connects to your factory exhaust. Headers are fully TIG welded and back purged. Mill finish, These, are TIG welded for strength