What you'll find:
* Cold air intakes (CAI): These systems draw air from a cooler location (often outside the engine bay) and typically replace the entire factory airbox and intake tubing. They often feature a larger diameter tube and a cone filter for improved airflow. Many brands offer these for the LT1, including K&N, AEM, and others. These are the most common upgrade.
* Short ram intakes: These are similar to CAIs but draw air from within the engine bay. They're generally less expensive but may not offer the same cooling benefits as a true CAI.
* High-flow air filters (drop-in): These are designed to replace the factory filter element within the stock airbox. They offer a small improvement in airflow but don't address the restrictive nature of the factory airbox itself. This is the least impactful option.
Important Considerations:
* Performance Gains: While a CAI can provide a slight increase in horsepower and torque, the gains on a stock LT1 are often minimal and may not be noticeable to the average driver. More significant gains require other modifications.
* Tuning: A significantly more restrictive air intake system (such as the stock system or a severely restrictive aftermarket system) may throw off the engine's air/fuel mixture, potentially causing problems. A CAI is relatively safe if it does not interfere with the Mass Airflow Sensor (MAF), but significant modifications may require a professional tune.
* Sound: CAIs often produce a more noticeable intake roar. This can be desirable for some but annoying to others.
* Legality: Check your local regulations regarding modifications to your vehicle's emissions system. Some CAIs might not meet emissions standards in certain areas.
* Water Ingestion: CAIs are more vulnerable to water ingestion than stock systems. Consider this if you live in an area with frequent rain or snow.
Recommendation:
Before buying a CAI, consider your goals. If you're looking for a relatively inexpensive modification with a small performance boost and a throatier intake sound, a CAI might be worthwhile. However, if you're expecting dramatic horsepower increases, you'll need to consider other modifications (exhaust, headers, tuning) to truly unlock the LT1's potential. A drop-in high-flow filter is the safest and least expensive option if you're unsure.
Do some research on specific brands and models of CAIs for the LT1 engine and read reviews before making a purchase. Make sure the system is compatible with your specific 1996 Buick Roadmaster.
