Honest car modification guides. What every mod does, what improves, what gets worse — so you spend your money right the first time.
The F150 has one of the deepest intake aftermarkets of any truck. Here is what a cold air intake actually does on both the 5.0L Coyote and 3.5L EcoBoost — and which systems are worth buying.
The F150's response to a cold air intake depends significantly on which engine you have. The results are real on both — but they feel different and come from different mechanisms.
On the 5.0L Coyote V8 the improvement is primarily about airflow and temperature. The factory intake restricts the naturally aspirated engine's ability to breathe freely. A quality cold air intake gives it more air at a lower temperature — the result is sharper throttle response, a better intake sound, and typically 8-15 WHP.
On the 3.5L EcoBoost the dynamic is different. The turbochargers compress incoming air regardless of what intake system feeds them — but a freer flowing, cooler intake reduces the temperature of air entering the turbo compressor. Cooler compressor inlet air means more efficient compression and a denser charge entering the intercooler. Combined with a tune the EcoBoost responds very well to intake upgrades.
K&N makes vehicle-specific intakes for virtually every F150 configuration going back years. Their cotton gauze filters flow significantly more air than paper filters, the fitment is precise, and the installation is straightforward. Real-world gains on the 5.0L are typically 10-16 HP with noticeably sharper throttle response.
S&B has built a strong reputation specifically in the F150 EcoBoost community. Their intake systems for the 3.5L EcoBoost are particularly well regarded for heat management — their intake tubes and shielding keep intake air temperatures lower than competing systems. On a tuned EcoBoost the S&B makes a measurable difference.
Both K&N and S&B F150 intakes are vehicle-specific bolt-on installations. Most owners complete the install in 45-60 minutes with basic hand tools. No cutting, no drilling, no professional installation needed. The factory airbox unbolts, the new intake bolts in its place using factory mounting points.
After installation give the ECU 50-100 miles to relearn the new airflow characteristics. You may notice a check engine light in the first few days — this is typically the ECU relearn process and clears on its own with driving. If it persists read our check engine light fix guide.
Honest car modification guides. What every mod does, what improves, what gets worse — so you spend your money right the first time.