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USA
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- CAN
- USA
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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Wehrli Custom Fab WCF100344-GB 4" Intake Kit W/Air Box - Gloss BlackReplace the intake and air box on your GM 6. 6L Duramax today with the Wehrli Custom Fab WCF100344 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 your diesel's restrictive plastic factory parts for improved engine performance. The new design significantly increases air flow to your turbo, producing improved horsepower and torque, quicker throttle
Replace the intake and air box on your GM 6.6L Duramax today with the Wehrli Custom Fab WCF100344-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 your diesel's restrictive plastic factory parts for improved engine performance. The new design significantly increases air flow to your turbo, producing improved horsepower and torque, quicker throttle response, and cooler intake temperatures by drawing cold air through the hood Ram Air duct and inner fender. All aluminum construction features large diameter 4" piping with smooth aerodynamic bends to improve intake air velocity and 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. The critical ram air duct seal has been moved to the bottom of the hood for a clean engine compartment appearance.
Features:
- Gloss Black Powder Coat Finish
- 4" Intake Pipe
- Air Box & Lid Constructed Of 10G Aluminum Sheet
- Dry Air Filter
- Outerwear's Pre-Filter Cover
- Hardware
- Seal For Connection To Ram-Air Port On Hood
- High-Quality Silicone Boot
- Stainless Steel T-Bolt Clamps
- Powder Coating
- Installs Easily With Basic Hand Tools.
- No Tuning Required, Bolt-On
- Compatible With Stock Trucks. No Other Modifications Or Upgrades Necessary!
- 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
4.5 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Great Sweater
Color: Black, Size: 3X-Large
My son wore this to an event he got so many compliments on it. The quality of the fabric and the design makes it look so much more expensive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
★★★★★ 5
Nice long sleeved polo
It looks great , nice color, warm but not too warm. It fits well, soft, washes well, and so far hasn’t come apart in wash. And it has long sleeves. I liked it so much I bought in more than one color. Nice selection of colors so I can wear one every day of the week.
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Reviewed in the United States on January 18, 2026
★★★★★ 4
Order one size larger
Love it but it runs small
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
★★★★★ 5
Very nice mid-weight sweater
Color: Navy Blue, Size: Large
Very nice sweater. Good fit, not too heavy, washes well
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Reviewed in the United States on October 25, 2025
★★★★★ 2
poor fit and quality
Color: Brown, Size: Large
Poor quality. You'll get two wears out of it that's it. Material feels cheep and wears cheep.
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Reviewed in the United States on January 18, 2026
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