I'm just wondering how much performance difference there is between a well made CAI and just installing a K&N in my exisitng airbox? To my untrained eye, those kits don't look like much more than that.

'Splain to me please.

 

The CAI is more than just a filter. It's also higher flow piping from the filter to the tb.

Not sure about exact performance numbers, but I'm sure someone else will chime in with them.

 

From K&N website:

"Most people are aware that our High-Flow Air Filter can increase horsepower over a traditional disposable air filter. An air filter change alone however, cannot eliminate other types of air restriction built into the vehicle at the factory. These can be found in the size of the air box and the air path running from the air box to the engine. That’s where intake kits rule the road. They completely replace the factory airflow assembly including the filter, air box and air path. More and more people are discovering the monster power available from a well-engineered intake kit and we sell over 200,000 intake kits every year, so go ahead and wake the sleeping giant in your car."

 

Guess that answers that. Thanks. That's a pretty good answer.

But....from someone who sells the things.

 

https://mustangforums.com/m_1217871/...tm.htm#1217871

 

Outstanding. Thank you Very much.