PDI Big Boss charge air cooler (CAC) boots are designed with performance in mind! Rated for higher temps with reinforced construction our boots will meet the demands of your truck!

4 Ply Reinforced Construction
Temperature Range up to 525 degrees
UV Resistant
4" Diameter
6" Overall length
3 Stainless Support Rings
Kit includes 4 Big Boss boots and 8 High Quality Stainless Steel Clamps for installation.  Fits most truck applications including Peterbilt, Kenworth, Freightliner, and more!