2011-2015 Duramax Stage 3 High Flow Bundle Kit (WCF100505)

Wehrli's Stage 3 airflow package for the 2011-2015 LML Duramax: the full Stage 2 bundle plus a 3" stainless turbo down pipe. Intake, intake horn, Y-bridge, both intercooler pipes, the upper crossover and the down pipe are all replaced, so the turbo breathes better in and out, and it all bolts on with no tuning.

Flow gains over stock: 4" intake 37%, 4.8" intake horn 5.6%, 3" driver (hot) side pipe 18%, 3.5" passenger (cold) side pipe 23%, CNC-machined cast aluminum Y-bridge 33%, plus a 3" upper crossover pipe and the 3" stainless down pipe. The air box and lid are 10-gauge aluminum with a dry filter and pre-filter cover. Powder coated in your choice of colour. Fits 2011-2015 trucks with the V-band exhaust connection only.

Part Number: WCF100505

• 4" intake pipe with dry filter and pre-filter cover, 37% more airflow than stock
• Air box and lid formed from 10-gauge aluminum sheet
• 4.8" intake horn, 5.6% more airflow than stock
• 3" driver (hot) side intercooler pipe, 18% more airflow than stock
• 3.5" passenger (cold) side intercooler pipe, 23% more airflow than stock
• 3" high-flow upper intercooler crossover pipe
• CNC machined cast aluminum Y-bridge, 33% more airflow than stock
• 3" stainless steel turbo down pipe
• No tuning required, bolt on
• Custom powder coat finish
• Made in USA

• For 2011-2015 LML trucks with the V-band exhaust connection. 2015.5-2016 trucks use the 3-bolt exhaust connection; use the Stage 2 bundle WCF100439 with the matching down pipe instead.

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