Want more horsepower, a better throttle response, and a more aggressive engine sound? An aftermarket air intake system is one of the easiest and most popular upgrades you can make. But which type should you choose — a cold air intake or a short ram intake? Let's break it down.
How Your Factory Air Intake Works
Your vehicle's stock air intake system is designed with one priority: pass emissions and noise regulations. It uses a restrictive airbox, a paper filter, and a series of baffles that muffle sound — all of which restrict airflow to the engine. More airflow = more power. That's where aftermarket intakes come in.
Cold Air Intakes: Maximum Performance
A cold air intake (CAI) relocates the air filter away from the engine bay — usually down near the fender or wheel well — where it can pull in cooler, denser air. Cold air contains more oxygen molecules per volume, which means more efficient combustion and more power.
Pros:
- Significant horsepower and torque gains (typically 5-20+ HP depending on the vehicle)
- Cooler intake air temperatures for more consistent performance
- Noticeable improvement in throttle response
- Deep, aggressive intake sound under acceleration
- Reusable high-flow filters save money long-term
Cons:
- More complex installation (longer tubing, may require fender liner modification)
- Potential hydrolock risk in deep water if not equipped with a bypass valve — relevant for off-road vehicles
- Higher cost than short ram intakes
Browse our full selection of cold air intakes for trucks, Jeeps, sports cars, and more.
Short Ram Intakes: Simple and Effective
A short ram intake (SRI) replaces the factory airbox with a shorter, wider tube and a high-flow filter — but keeps the filter inside the engine bay. It's the simplest intake upgrade you can make.
Pros:
- Easy installation — usually under 30 minutes with basic hand tools
- Immediate throttle response improvement
- Loud, aggressive intake sound (louder than most cold air intakes)
- No water ingestion risk
- More affordable than cold air intakes
Cons:
- Pulls in warmer engine bay air — less power gain than a cold air intake
- Performance can decrease in hot weather or after extended idling (heat soak)
- Smaller horsepower gains overall
Head-to-Head Comparison
| Feature | Cold Air Intake | Short Ram Intake |
|---|---|---|
| Horsepower Gain | 5-20+ HP | 3-10 HP |
| Install Difficulty | Moderate | Easy |
| Sound | Deep growl | Louder, more aggressive |
| Heat Soak Risk | Low | Higher |
| Water Ingestion Risk | Possible (mitigated with bypass valve) | None |
| Price | $200-$500+ | $100-$300 |
| Best For | Max performance, towing | Sound, quick upgrade, budget |
Don't Forget the Filter
Whichever intake you choose, the air filter is doing the heavy lifting. A high-quality, high-flow filter lets your engine breathe freely while still protecting against dirt and debris. Many aftermarket intakes come with washable, reusable filters — a better long-term value than disposable paper filters.
Need a replacement? Browse our air filters and drop-in air filters for both stock and aftermarket intake systems.
Our Recommendation
Go cold air intake if: You want the most performance per dollar, you tow or haul, you're building a complete performance setup, or you live in a hot climate where intake temps matter.
Go short ram if: You want a quick weekend install, you're on a tighter budget, you want maximum sound for minimal effort, or you regularly drive through deep water/mud (off-roaders, take note).
Shop Air Intake Systems at Bull Strap
We carry thousands of intake components from the biggest names in performance — K&N, aFe Power, Injen, Spectre, S&B Filters, and more. From complete cold air intake kits to drop-in filter replacements, we've got everything you need to let your engine breathe.