Description
The STILLEN TruPower Cold Air Intake with Rain Guard and Dry Filter for the 2014–2021 Toyota Tundra 5.7L V8 is the only true cold air intake system engineered specifically for this platform. After more than 18 months of development and testing, STILLEN created an intake that delivers real airflow improvements, faster intake air temperature recovery, and proven horsepower and torque gains.
Unlike under-hood or short-ram intakes that draw in hot engine bay air, the TruPower system replaces the factory radiator shroud and intake ducting to channel cold ambient air directly from the front of the vehicle, through the core support, and into a sealed airbox. This design fully utilizes the factory intake opening while increasing airflow capacity by nearly 50%.
During testing, the TruPower intake reached ambient air temperatures up to 60 seconds faster than the factory intake and achieved ambient conditions three times faster overall. Competing intake systems tested by STILLEN ran hotter than stock and failed to reach ambient temperatures at all.
This configuration (TP403201) features a high-quality, washable STILLEN dry air filter paired with the modular block-off plate and free-flow tube system, making it ideal for daily-driven trucks and owners who want improved performance without the maintenance associated with oiled filters.
Vehicle Fitment
Fits the following vehicles:
- 2014-2021 Toyota Tundra
- 5.7L V8 engine only
Does NOT fit:
- 4.6L Tundra models
- Vehicles registered in California
Verify engine and emissions requirements before purchase.
Performance Gains
- Up to +20 horsepower*
- Up to +20 lb-ft of torque*
In addition to power gains, the TruPower system significantly reduces intake air temperatures for more consistent and repeatable performance.
Results may vary depending on vehicle condition, fuel quality, and environment.
Key Features and Benefits
- STILLEN TruPower Cold Air Intake System
- Designed specifically for 2014–2021 Toyota Tundra 5.7L V8
- True cold air design drawing air from outside the engine bay
- Achieves ambient air temperatures faster than any other intake tested
- Reaches ambient temperatures up to 60 seconds sooner than factory intake
- Nearly 50% increase in airflow over the factory system
- High-quality, washable STILLEN dry air filter
- Air filter backed by a limited lifetime warranty
- Modular block-off plate and free-flow tube system
- No cutting or permanent vehicle modifications required
- Simple bolt-on installation with basic hand tools
- Manufactured in the USA
- Not legal for sale or use in California
Dry Filter Advantages
The TP403201 configuration is ideal for daily-driven trucks and owners who want improved airflow and performance with minimal maintenance.
- Dry filter requires no oiling
- Easy to clean and service
- Consistent filtration in street and highway driving
- Excellent balance of airflow and protection
- Suitable for the majority of driving conditions
For drivers who regularly encounter heavy rain, deep water, mud, or off-road environments, TP403200 with the oiled filter and removable block-off plate is recommended. For most owners, TP403201 provides optimal performance with no concern about water ingestion.
Installation
- Direct bolt-on design
- No cutting, drilling, or fabrication required
- Retains factory mounting locations
- Installs using basic hand tools
TruPower Configuration Options
The TruPower intake system is available in multiple configurations combining filter type and airflow channel.
- TP403201 – Dry filter configuration for street and daily driving
- TP403200 – Oiled filter with removable block-off plate for extreme conditions
Choose the configuration that best matches your driving environment.
Why Choose STILLEN TruPower?
Most aftermarket intakes prioritize sound over function. The TruPower system was engineered to deliver true cold air, measurable airflow gains, and verified intake temperature reductions.
The result is real horsepower and torque improvements, consistent performance under load, and OEM-level fitment—designed specifically for the Toyota Tundra 5.7L V8.
