GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04

GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04

GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04
GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04
GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04
GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04
GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04
GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04
GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04
GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04
GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04
GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04
GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04
GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04
GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04
GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04
GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - `01-`04
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GMC 3500 HD Performance Air Intake - Wehrli - High Flow Cast Aluminum - Gloss White - 01-04. This high-flow cast aluminum turbo inlet replaces the restrictive OEM turbo mouthpiece to improve airflow and throttle response on 2001–2004 GMC/Chevrolet 6.6L Duramax LB7 trucks.

Designed and precision CNC-machined by Wehrli, this 4" intake horn offers a smooth transition into the turbo compressor cover and is finished in durable gloss white powder coat. It bolts on without tuning, pairs with aftermarket or stock IHI-style drop-in turbos, and is intended for performance systems that use a 4" boot connection with bead roll. Made in the USA, it includes mounting hardware and an O-ring seal at the turbo face.

Features

  • True 4" cast aluminum inlet with smooth flow profile
  • Flows up to 40% better than stock (manufacturer spec)
  • Gloss white custom powder coat finish; Made in USA
  • O-ring turbo seal and included mounting hardware
  • Bolt-on upgrade; compatible with factory IHI and many aftermarket drop-in turbos
  • Not compatible with OEM intake systems that use a molded, non-removable silicone connection

This intake is a focused upgrade for enthusiasts seeking quicker spool, improved drivability, and better airflow through the turbocharger without unnecessary extras. If you have questions about fitment with your current intake or turbo, give us a call — our parts and tech staff can help verify compatibility and recommend complementary upgrades. We have installation and customization services at both locations: Austin, Texas and Los Angeles, California areas. Call us at 512-982-9393 (TX) or 562-981-6800 (CA).

If you’re considering purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

Disclaimer: Some images in our product listings that are provided by the manufacturer/ supplier are for illustration purposes only and may not be an exact representation of the item. The product listing details are accurate for the item offered. Please refer to the product description for precise specification and as always do not be hesitant to reach out to us with any questions.



CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

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Wehrli

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Two locations to serve you

AUSTIN, TX

22108 SH 71 W.
Spicewood, TX 78669
512-982-9393
Mon-Fri: 9 AM - 6PM CST
Sat-Sun: Closed

LOS ANGELES, CA

2716 Dawson Ave.
Signal Hill, CA 90755
562-981-6800
Mon-Fri: 9 AM - 6PM PST
Sat-Sun: Closed