JLT JLT-RB Rock Blockers

ROCK BLOCKER!!!! One of the very first things that was noticed after being around a few new GT350's was the rocks the side skirts collected under normal driving. We spent countless sleepless nights thinking of a solution for this MAJOR problem. We designed these foam inserts that simply tuck into the open area of the side skirt to keep this area clean of road debris. These have been tested to 225 MPH on a stationary dyno :-D. We would recommend removing them for track days and extended high speed driving. They have been road tested to 100+ MPH, on a closed course. Do not attempt!  What's included: (2) JLT Rock blockers.  Vehicle Applications: YEAR MAKE MODEL ENGINE 2015 FORD MUSTANG SHELBY GT350 5.2L, GAS 2016 FORD MUSTANG SHELBY GT350 5.2L, GAS 2017 FORD MUSTANG SHELBY GT350 5.2L, GAS 2018 FORD MUSTANG SHELBY GT350 5.2L, GAS 2019 FORD MUSTANG SHELBY GT350 5.2L, GAS 2020 FORD MUSTANG SHELBY GT350 5.2L, GAS SPECIFICATIONS Prop 65 WARNING: Cancer & Reproductive Harm - P65Warnings.ca.gov