Wehrli WCF100412-GB 4.8in High Flow Turbo Intake Horn for 06-10 LBZ/LMM For Sale

Upgrade your Duramax with the Wehrli WCF100412-GB 4.8in High Flow Turbo Intake Horn. Designed for 2006-2010 Chevrolet and GMC models, this horn boosts airflow by 20%, enhancing turbo response and throttle performance.

CNC machined aluminum with gloss black finish. Easy install with no tuning required. Elevate your engine sound and performance

- AUTHORIZED DEALER
- AUTHENTICPART

Part Brand: Wehrli

Part Number: WCF100412-GB

• 2006–2010 Chevrolet Silverado 2500 HD / 3500 HD, 6.6L LBZ/LMM Duramax
• 2006–2010 GMC Sierra 2500 HD / 3500 HD, 6.6L LBZ/LMM Duramax
• 2006–2010 Chevrolet Express 2500 / 3500, 6.6L LBZ/LMM Duramax
• 2006–2010 GMC Savana 2500 / 3500, 6.6L LBZ/LMM Duramax

• Not compatible with OEM or aftermarket intake systems that have the boot connection molded directly to the intake pipe (non-removable)
• Compatible with intakes that use a silicone boot and two clamps for the horn connection

• Replaces the restrictive OEM plastic turbo inlet horn for a significant increase in airflow to the turbo
• 4.8\" inlet — the largest intake horn on the market for this platform
• Delivers a 20% airflow improvement over the stock horn
• CNC machined cast aluminum construction
• Includes a PCV port and eliminates the factory resonator connection for a cleaner setup and more aggressive turbo sound
• Finished in gloss black powder coat
• No tuning required for installation, though tuning can help maximize the airflow gains

• Inlet diameter: 4.8\"
• Material: CNC machined cast aluminum
• Finish: Gloss black powder coat

• 1x Turbo inlet horn with PCV port
• Silicone reducer boot
• Stainless steel T-bolt clamps
• O-ring seal

The factory plastic turbo inlet on the LBZ/LMM is a known airflow bottleneck, and this cast aluminum horn addresses it directly with a massive 4.8\" inlet — the largest available for this platform — delivering a 20% airflow improvement over stock. That translates to quicker turbo spool and improved throttle response, whether you\'re running factory boost levels or building toward more.

Finished in gloss black and eliminating the OEM resonator connection, it cleans up the engine bay while adding a more aggressive turbo and engine sound under acceleration. No tuning is required to install it, though pairing it with a tune can help you extract the full benefit of the added airflow. Just confirm your intake uses a removable silicone boot connection rather than a molded one before ordering.

*Parts are for USA spec vehicles, please contact us to verify fitment on JDM & international models.

· · · SHIPPING · · ·

• Free shipping across the contiguous 48 United States (excludes Hawaii and Alaska). Item(s) ships on the same day or within 1 business day. Delivery time is within 2 to 4 business days excluding next day deliveries. Orders over $750 require signature for delivery.
• Canada customers - If does not collect import & duty fees during checkout, the shipping carrier will collect them prior to delivery.

· · · RETURNS · · ·

• Your complete shopping satisfaction is our #1 priority. If an item you ordered from us does not meet your expectations, please contact us within 30 days of receiving the item(s). If your order arrives damaged from shipping please contact us and we will provide a prepaid return label to send back for a replacement or refund.

• Returned items must be in the original packaging (including plastic wrapped items) and in brand new condition.
• Any returns received installed, mounted, used or missing components will be subject to return fee\'s.

· · · PAYMENTS · · ·

• We accept all payment methods through \'s payment system
• PayPal, and all major credit cards/debit cards are accepted.

· · · response · · ·

• Customer satisfaction is a top priority for us. If you have any issues with your order, please let us know. We will make every effort to resolve any problems and ensure you are satisfied.

· · · CONTACT US · · ·

• We appreciate your business. If you have any questions, please message us through and we will respond within 24 hours on weekdays. Feel free to browse our store for other available items. Thank you again for choosing to shop with us!