WCFAB 4" Intake Kit (2004.5-2005 LLY Duramax)
2004.5-2005 LLY Duramax 4" high flow intake kit for factory turbo. This Intake is for use with a FACTORY, AFE, or S&B intake (turbo inlet) horn. If you are using an LBZ/LMM style intake horn please call to order special kit WCF100683.
Our Stage 2 intake kit includes our 3 1/2" fabricated Intake Horn, WCF100637