---
product_id: 32375317
title: "JLT Performance 2015-2018 Mustang Shelby GT350 Rock Blockers"
brand: "jlt performance"
price: "€ 69.36"
currency: EUR
in_stock: true
reviews_count: 8
category: "Jlt Performance"
url: https://www.desertcart.hr/products/32375317-jlt-performance-2015-2018-mustang-shelby-gt350-rock-blockers
store_origin: HR
region: Croatia
---

# Tested up to 225 MPH Easy peel & stick installation Protects side skirts from rocks JLT Performance 2015-2018 Mustang Shelby GT350 Rock Blockers

**Brand:** jlt performance
**Price:** € 69.36
**Availability:** ✅ In Stock

## Summary

> 🛡️ Keep your Shelby pristine—because your GT350 deserves the best!

## Quick Answers

- **What is this?** JLT Performance 2015-2018 Mustang Shelby GT350 Rock Blockers by jlt performance
- **How much does it cost?** € 69.36 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/32375317-jlt-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

- • **Effortless Installation:** Self-adhesive peel & stick design means no tools, no hassle—just instant rock-blocking power.
- • **Lightweight Yet Durable:** At just 0.634 ounces, these inserts add protection without compromising performance or style.
- • **Tailored for Your GT350:** Precision fit for 2015-2018 Mustang Shelby GT350 ensures seamless integration and sleek aesthetics.
- • **Race-Proven Rock Defense:** Engineered foam inserts block debris at speeds up to 225 MPH for ultimate side skirt protection.
- • **Peace of Mind on Every Drive:** Say goodbye to annoying rock chips and enjoy your ride with confidence and clean side skirts.

## Overview

JLT Performance Rock Blockers are custom-designed foam inserts for 2015-2018 Mustang Shelby GT350 side skirts. Tested up to 225 MPH, they prevent rock and debris buildup with a simple peel & stick installation, offering lightweight, durable protection that keeps your vehicle looking sharp on every drive.

## 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 |
|---------------|-------|
| Auto Part Position | Rear |
| Installation Type | Peel & Stick, Self-Adhesive |
| Automotive Fit Type | Vehicle Specific Fit |
| Manufacturer | JLT Performance |
| Item Weight | 0.634 ounces |
| Product Dimensions | 3.5 x 2.5 x 1 inches |
| Item model number | KASK2F4 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | KASK2F4 |
| ABPA Partslink Number | JL2015167 |

## 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

![JLT 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
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- Bogar Tech Designs - Front Lip Splitter Vinyl Decal Letters Compatible with Mustang Shelby GT350 2015-2019, Gloss White

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**Shop now:** [https://www.desertcart.hr/products/32375317-jlt-performance-2015-2018-mustang-shelby-gt350-rock-blockers](https://www.desertcart.hr/products/32375317-jlt-performance-2015-2018-mustang-shelby-gt350-rock-blockers)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-22*