Here at DEI, we are always coming up with new ways to help keep you cool and comfortable on those hot summer days. Check out two of our latest products below!


Product Feature: Muffler Shield for Yamaha® Golf Carts

The Yamaha® G Series golf carts are one of the most popular cart models available today. Its durability and function make it a favorite for retirement communities, camp grounds, and golf courses across the country.


However, the compact engine location places the exhaust muffler directly below the driver’s seat. During periods of warm weather driving or a few minutes of idling, the heat from the muffler can make the seat quite uncomfortable.

DEI now offers a wrap-around muffler shield kit that provides an extra layer of protection. This helps contain the excess heat and prevent it from getting to the drivers area. In addition to keeping the seat cooler, the muffler shield also suppresses the sound and vibration, resulting in a cooler and quieter cart.

Installation is easy with basic hand tools and can be performed with the muffler still on the vehicle.

Muffler Shield for Yamaha® Golf Carts

Part# 902480      Muffler Shield Yamaha® G29 2015+          MSRP $39.95

Product Feature: Protective Split Sleeve


DEI now offers a great way to add additional protection to exposed wire looms, hoses, and cables. Our Protective Split Sleeve features a clean, classy look that preserves sensitive parts from abrasion and the elements. Heat and solvent resistant, the split sleeve loom can be easily installed over existing installations, no splicing needed! Great for speaker wires, auxiliary lights, custom wiring harnesses and more. Use DEI Split Sleeve to give your install a professional, tidy appearance, and saving a potential problem later on. In addition, it won’t crack, hold moisture or look cheap like conventional plastic tubing.

Protect and organize wires, cables, and hoses

Easy to use and install

Add a clean and classy look

Easily removed for service or replacement

Multiple diameters available

Includes Silicone tape to secure ends

Made in the USA

Protective Split Sleeve

Part# Varies –Depending on size               MSRP Starts at $12.95 – $19.95

About Design Engineering, Inc.

Design Engineering, Inc., founded in 1995 by the late Dale Markley, is the leading aftermarket manufacturer and global supplier of performance heat and sound control products. DEI engineered products offer the most effective means to improve an engine’s cooling efficiency to enhance performance. Boom Mat, the company’s sound deadening product line, offer products that keep a vehicle’s interior cool and quiet.

Based in Avon Lake, Ohio, the company has continued to grow employing 30 under the leadership of the Markley family and through the expansion into new product lines including: Boom Mat™, Ny-Trex™, Radiator Relief™ and CryO2™. In addition to supplying the performance automotive aftermarket with thermal tuning products, DEI serves the needs of the powersports, marine, industrial and commercial industry markets worldwide. www.