Quick view Wehrli Wehrli 17-19 Duramax L5P Stage 1 High Flow Bundle Kit - Chevy Orange - WCF100718-CRO Compare $635.00 $615.99 Stage 1 upgrade for the 2017-2019 L5P Duramax improves airflow between the turbo and engine for improved efficiency, throttle response, and turbo spool up. Eliminates weak points in the factory... Add to Cart Add to Cart
Quick view Wehrli Wehrli 17-19 Duramax L5P Stage 1 High Flow Bundle Kit - Fine Texture Black - WCF100718-FTB Compare $635.00 $615.99 Stage 1 upgrade for the 2017-2019 L5P Duramax improves airflow between the turbo and engine for improved efficiency, throttle response, and turbo spool up. Eliminates weak points in the factory... Add to Cart Add to Cart
Quick view Wehrli Wehrli 17-19 Duramax L5P Stage 1 High Flow Bundle Kit - Gun Metal - WCF100718-GM Compare $635.00 $615.99 Stage 1 upgrade for the 2017-2019 L5P Duramax improves airflow between the turbo and engine for improved efficiency, throttle response, and turbo spool up. Eliminates weak points in the factory... Add to Cart Add to Cart
Quick view Wehrli Wehrli 17-19 Duramax L5P Stage 1 High Flow Bundle Kit - Illusion Blueberry - WCF100718-IBB Compare $685.00 $664.99 Stage 1 upgrade for the 2017-2019 L5P Duramax improves airflow between the turbo and engine for improved efficiency, throttle response, and turbo spool up. Eliminates weak points in the factory... Add to Cart Add to Cart
Quick view Wehrli Wehrli 17-19 Duramax L5P Stage 1 High Flow Bundle Kit - WCFab Grey - WCF100718-GRY Compare $685.00 $664.99 Stage 1 upgrade for the 2017-2019 L5P Duramax improves airflow between the turbo and engine for improved efficiency, throttle response, and turbo spool up. Eliminates weak points in the factory... Add to Cart Add to Cart
Quick view Wehrli Wehrli 17-19 Duramax L5P Stage 2 High Flow Bundle Kit - Deore Gold - WCF100441-DG Compare $1,600.00 $1,552.99 The OEM diameter and we experienced a 25HP Gain with our 4 in. turbo inlet when used with a Max Effort Tune. High quality hardware, silicone boot, seals, and stainless steel t-bolt clamps ensure... Add to Cart Add to Cart
Quick view Wehrli Wehrli 17-19 Duramax L5P Stage 2 High Flow Bundle Kit - Illusion Blueberry - WCF100441-IBB Compare $1,600.00 $1,552.99 The OEM diameter and we experienced a 25HP Gain with our 4 in. turbo inlet when used with a Max Effort Tune. High quality hardware, silicone boot, seals, and stainless steel t-bolt clamps ensure... Add to Cart Add to Cart
Quick view Wehrli Wehrli 17-19 Duramax L5P Stage 2 High Flow Bundle Kit - WCFab Grey - WCF100441-GRY Compare $1,600.00 $1,552.99 The OEM diameter and we experienced a 25HP Gain with our 4 in. turbo inlet when used with a Max Effort Tune. High quality hardware, silicone boot, seals, and stainless steel t-bolt clamps ensure... Add to Cart Add to Cart
Quick view Wehrli Wehrli 17-19 Duramax L5P Stage 3 High Flow Bundle Kit - Bengal Red - WCF100403-BR Compare $1,799.00 $1,745.99 The OEM diameter and we experienced a 25HP Gain with our 4 in. turbo inlet when used with a Max Effort Tune. High quality hardware, silicone boot, seals, and stainless steel t-bolt clamps ensure... Add to Cart Add to Cart
Quick view Wehrli Wehrli 17-19 Duramax L5P Upper Coolant Pipe - Chevy Orange - WCF100742-CRO Compare $160.00 $155.99 Aluminum Upper Coolant Pipe for 2017-2019 L5P Duramax replaces the OEM rubber upper coolant hose and comes powder coated color of choice! Replaces the following GM Part Numbers: 84094878Installation... Add to Cart Add to Cart
Quick view Wehrli Wehrli 17-19 Duramax/Cummins AAM 11.5 in. Rear Diff Cover - Whiskey Bronze - WCF100113-CSTM Compare $464.00 $450.99 Wehrli 17-19 Duramax/Cummins AAM 11.5 in. Rear Diff Cover - Whiskey Bronze Add to Cart Add to Cart
Sold Out Quick view Wehrli Wehrli 17-19 GM Duramax L5P 4in Intake Kit - Cat Yellow - WCF100344-CAT Compare $625.00 $606.99 WCFab 2017-2019 GM L5P 6.6L Duramax 4" Intake Kit with Air Box. This high flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic factory... Currently Out of stock. On order! Currently Out of stock. On order!