
Feed your Duramax more power
Carbon Fiber Performance
The PPE Zilla Carbon Fiber Air Box Cover is a premium upgrade for the GM 3.0L Duramax, handcrafted from 100% dry/prepreg carbon fiber and finished in a sleek clear coat - such high-grade materials and craftsmanship are typically only seen in supercars. Designed for maximum airflow and efficiency, it maintains proper air‑fuel ratios across the entire powerband, unlike restrictive competitor designs. A built‑in velocity stack improves airflow, throttle response, and fuel efficiency, while retaining all factory mounting points for a perfect fit and easy installation. Performance, precision, and standout carbon style—engineered to set your Duramax apart.
Features
- 100% Genuine, dry/prepreg carbon fiber construction
- Easy, bolt-on installation. No tuning required
- Kit includes stainless steel clamps and PPE 5ply silicone couplers
- Eliminates stock restrictive resonator and improves airflow
- Available in two carbon fiber appearances - twill weave and forged
Applications & Product Links:
2020-2026 GM 1500 3.0L - Zilla Carbon Fiber Intake Tube
2020-2026 GM 6.6L Duramax Zilla Carbon Fiber Turbo Inlet Tube
2004.5-2005 GM 6.6L Duramax LLY Zilla Carbon Fiber Turbo Inlet Upgrade
2006-2010 GM 6.6L Duramax LBZ LMM - Zilla Carbon Fiber Turbo Inlet Upgrade Kit
2019-2026 GM 1500/SUVs 5.3L/6.2L - Zilla Carbon Fiber Intake Tube

2020-2026 GM 6.6L Duramax Zilla Carbon Fiber Turbo Inlet Tube
FEATURES
- 100% Genuine, dry/prepreg carbon fiber construction
- Easy, bolt-on installation. No tuning required
- Kit includes stainless steel clamps and PPE 5ply silicone couplers
- Eliminates stock restrictive resonator and improves airflow
- Available in two carbon fiber appearances - twill weave and forged
Applications & Product Links:
Carbon Fiber Air Box Lids
Features
- Superior prepreg carbon fiber
- Optimal performance at all RPMs
- Ensures accurate air-fuel ratio, better fuel efficiency
- Built-in velocity stack for increased smooth airflow
- Significant weight reduction
- OEM fitment for easy installation
Applications & Product Links:

2020-2026 GM 1500 3.0L - Zilla Carbon Fiber Intake Tube
FEATURES
- Increased torque, better acceleration
- Faster throttle response, less turbo lag
- Reduces frictional pressure drop by 73%
- Increased volumetric airflow
- 100% dry/prepreg carbon fiber construction
- Works with OEM and aftermarket airbox
- Includes all necessary mounting hardware including a new insulator grommet
- Available in two carbon fiber appearances - twill weave and forged
Applications & Product Links:
2011-2016 GM 6.6L Duramax LML- Zilla Carbon Fiber Turbo Inlet Upgrade Kit
Features
- Faster throttle response and higher turbo efficiency
- Increased volumetric airflow and engine torque
- 100% dry/prepreg carbon fiber
- OEM-like fitment, bolt-on installation
- Includes flexible airbox coupler
- Includes CDR valve adapter plate for 2011-2014 applications
- Available in Twill Weave and Forged Carbon appearances
Applications & Product Links:

2006-2010 GM 6.6L Duramax LBZ LMM - Zilla Carbon Fiber Turbo Inlet Upgrade Kit
FEATURES
- Faster throttle response and higher turbo efficiency
- Increased volumetric airflow and engine torque
- Handcrafted from 100% prepreg carbon fiber
- Retains factory CCV inlet port
- Includes flexible TPV coupler and clamps for a seamless installation
- Available in Twill Weave and Forged Carbon appearances