The WCFab Stage 3 High Flow Bundle for 2007.5–2010 Chevrolet 6.6L Duramax LMM combines high‑flow intake and intercooler plumbing with a 3in stainless downpipe to improve both intake and exhaust flow for enhanced turbo response. The kit uses 4in aluminum piping, a large 4.8in intake horn, CNC machined flanges with double o‑ring seals and reinforced silicone boots. Finished in Bengal Blue, it installs bolt‑on with no tuning required.
Wehrli 07.5-2010 Chevrolet 6.6L Duramax LMM Stage 3 High Flow Bundle Kit - Bengal Blue