Shipping Estimate
USA
- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 15 - Jul 20
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Description
Wehrli Custom Fab WCF100191-GB 4" Intake Kit W/Air Box - Gloss BlackUpdate the intake in your GM Silverado Sierra 6. 6L Duramax today with the Wehrli Custom Fab WCF100191 GB 4" Intake Kit W Air Box Gloss Black from GAP. This high flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic factory parts on your diesel for improved engine performance. This design significantly increases airflow to your turbo producing improved horsepower and torque, quicker
Update the intake in your GM Silverado/Sierra 6.6L Duramax today with the Wehrli Custom Fab WCF100191-GB 4" Intake Kit W/Air Box - Gloss Black from GAP. This high-flow, fabricated aluminum intake pipe and air box enclosure with dry filter assembly replaces the restrictive plastic factory parts on your diesel for improved engine performance. This design significantly increases airflow to your turbo producing improved horsepower and torque, quicker throttle response, and cooler intake temperatures by drawing cold air through the inner fender. All aluminum construction features large diameter 4" piping with smooth aerodynamic bends to improve intake air velocity, volume, and provide more aggressive engine and turbo sound during acceleration. High-quality hardware, silicone boot, seals, and stainless-steel t-bolt clamps ensure optimum durability and ease of installation. The removable air box lid element allows for easy visual inspection and maintenance of your WCFab filter with an included hydrophobic pre-filter cover, to help keep your MAF sensor, turbo, and engine airways contaminant-free.
Features:
- Texture Black Powder Coat Finish
- 4" Intake Pipe
- 144g Aluminum Construction
- Air Box & Lid Constructed Of 10g Aluminum Sheet
- Dry Air Filter
- Outerwear's Pre-Filter Cover
- Includes Installation Hardware
- Silicone Boot & Stainless Steel T-Bolt Clamps
- O-Ring Seal
- Installs Easily With Basic Hand Tools
- No Tuning Required
- Made In USA
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 1494 reviews
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Product Reviews
★★★★★ 5
Nice jacket
Size: Medium, Color: Grey 01
Nice jacket . Material exactly as described.
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Reviewed in the United States on February 3, 2026
★★★★★ 5
Value for money
Size: Large, Color: A-red
Exquisite; stylish.
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Reviewed in the United States on October 14, 2025
★★★★★ 5
Black mens coat
I didn't expect such good quality from such an inexpensive black coat, stylish, neat, looks expensive, none of my friends believed that I bought it so cheaply! No pellets appeared after a year and a half of use
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Reviewed in the United States on March 15, 2025
★★★★★ 4
Has shoulder pads.
The jacket has shoulder pads that don't necessarily show on the image in the purchase area. Pretty pronounced so if that's not your thing definitely stay away. Got lucky and it doesn't look too bad on me but it took so long to receive the package I don't feel like going through the refund process so I'm dealing with it. Quality is great tho
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Reviewed in the United States on January 23, 2024
★★★★★ 5
Softness
Size: Medium, Color: A-red
High quality material !
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Reviewed in the United States on January 6, 2026