--- product_id: 32375317 title: "Performance 2015-2018 Mustang Shelby GT350 Rock Blockers" brand: "jlt performance" price: "275.38 DT" currency: TND in_stock: true reviews_count: 8 category: "Jlt" url: https://www.desertcart.tn/products/32375317-performance-2015-2018-mustang-shelby-gt350-rock-blockers store_origin: TN region: Tunisia --- # Tested up to 225 MPH on dyno Fits 2015-2018 Mustang Shelby GT350 Blocks rocks & debris effectively Performance 2015-2018 Mustang Shelby GT350 Rock Blockers **Brand:** jlt performance **Price:** 275.38 DT **Availability:** βœ… In Stock ## Summary > πŸ›‘οΈ Keep your Shelby spotless, cruise confident, and never fear the road again! ## Quick Answers - **What is this?** Performance 2015-2018 Mustang Shelby GT350 Rock Blockers by jlt performance - **How much does it cost?** 275.38 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/32375317-performance-2015-2018-mustang-shelby-gt350-rock-blockers) ## Best For - jlt performance enthusiasts ## Why This Product - Trusted jlt performance brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Stealthy & Durable:** Matte black polyurethane and rubber blend that stays put through washes and daily drives without drawing attention. - β€’ **Rock & Debris Defense:** Foam blockers prevent unsightly rock buildup, keeping your ride pristine on every cruise. - β€’ **Effortless Installation:** Peel & stick, self-adhesive design means no tools or hassleβ€”get protected in minutes. - β€’ **High-Speed Tested Reliability:** Proven performance up to 225 MPH on a stationary dyno and 100+ MPH on closed courses. - β€’ **Precision Fit for Shelby GT350:** Custom-designed inserts tuck perfectly into side skirts for a seamless look and function. ## Overview JLT Performance Rock Blockers are custom foam inserts designed specifically for 2015-2018 Mustang Shelby GT350 side skirts. Engineered to prevent rock and debris buildup, these durable polyurethane and rubber blockers have been rigorously tested at speeds up to 225 MPH on a dyno and 100+ MPH on closed courses. Easy to install with a peel-and-stick adhesive, they offer a stealthy, effective solution to maintain your Shelby’s sleek appearance and protect your investment during everyday driving. ## Description 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. After a Monday night of no sleep, we got it! 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! Whats included: (2) JLT Rock blockers. Peace of mind and ability to sleep at night knowing rocks are not in your side skirts. Review: Cheap but effective. - Easy to install. Stay put during high pressure wash (no direct blast). Work well. Aesthtecially adequate. Review: These are perfect! - Great product and a great fit. So far, they are doing exactly what they're designed for. Keeps extra rocks and debris from accumulating on the way to cruise-ins & shows. No one even notices them when they're in place! Thanks for a very useful part of our car show war chest! ## Features - Keeps the rocks off your GT350 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B01KASK2F4 | | Auto Part Position | Rear | | Automotive Fit Type | Vehicle Specific Fit | | Best Sellers Rank | #1,007,288 in Automotive ( See Top 100 in Automotive ) #498 in Automotive Rocker Panels | | Brand | JLT Performance | | Brand Name | JLT Performance | | Color | Black | | Compatible with Vehicle Type | Car | | Customer Reviews | 4.5 out of 5 stars 367 Reviews | | Exterior Finish | Black | | Installation Type | Peel & Stick, Self-Adhesive | | Item Dimensions | 3.5 x 2.5 x 1 inches | | Item dimensions L x W x H | 3.5 x 2.5 x 1 inches | | Manufacturer | JLT Performance | | Manufacturer Part Number | KASK2F4 | | Material | Polyurethane (PU), Rubber | | Material Type | Polyurethane (PU), Rubber | | Model Number | KASK2F4 | | Unit Count | 2.0 Count | | Vehicle Service Type | Car | ## Product Details - **Color:** Black - **Brand:** Jlt - **Exterior Finish:** Black - **Vehicle Service Type:** Car - **Item dimensions L x W x H:** 3.5 x 2.5 x 1 inches ## Images ![Performance 2015-2018 Mustang Shelby GT350 Rock Blockers - Image 1](https://m.media-amazon.com/images/I/41NW8hzMRbL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Cheap but effective. *by C***. on September 10, 2019* Easy to install. Stay put during high pressure wash (no direct blast). Work well. Aesthtecially adequate. ### ⭐⭐⭐⭐⭐ These are perfect! *by T***K on August 31, 2017* Great product and a great fit. So far, they are doing exactly what they're designed for. Keeps extra rocks and debris from accumulating on the way to cruise-ins & shows. No one even notices them when they're in place! Thanks for a very useful part of our car show war chest! ### ⭐⭐⭐⭐⭐ Keeps the rocks out *by M***N on April 18, 2019* As advertised it keeps the rocks out of the gap behind the front tires. Fit was snug, as it should be. No issues. ## Frequently Bought Together - JLT Performance 2015-2018 Mustang Shelby GT350 Rock Blockers - iPick Image for Ford Mustang Cobra in Black on Black Aluminum Tire Valve Stem Caps - Bogar Tech Designs - Front Lip Splitter Vinyl Decal Letters Compatible with Mustang Shelby GT350 2015-2019, Gloss White --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/32375317-performance-2015-2018-mustang-shelby-gt350-rock-blockers](https://www.desertcart.tn/products/32375317-performance-2015-2018-mustang-shelby-gt350-rock-blockers) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-27*