Complete the cold air intake system on your 2006-2007 Chevy/GMC 6.6L LLY/LBZ Duramax with Intake Couplers & Elbows. You will find a vast selection of hump, straight, reducing, and 90-degree couplers. Manufactured out of rubber, silicone, or plastic, these couplers come in various sizes ranging from 3.5" all the way up to 6" diameter. AFE, Fleece Performance, Vibrant, and Grand Rock are just some of the high-quality companies available at XDP.
