Dyno 2: AEM Cold-Air Intake
Pros
The AEM cold-air intake is a perfect fit in the CRX. It is tuned to make power in the midrange with modest gains on the peak side. There is little to no sacrifice at the low end. Even though peak figures only reflected gains of 2.6 hp and 6.3 lb-ft of torque, the midrange saw gains of as much as 12 hp and 12 lb-ft of torque. AEM engineered this intake to draw air from behind the bumper and in front of the tire to keep air intake charge temperatures down, resulting in greater horsepower gains. This is one of the answers to the hot engine bay temperature question.
Cons
One drawback to any cold air system is you really should only use it during dry weather conditions. Since cold air systems generally draw air from the lower section in front of the tire, the splashguard is the only thing protecting the air filter. Don't just take off the splashguard, or your air filter will more than likely suck in water and hydrolock your engine when you hit a big enough puddle. Expensive mistake to make, so don't do it.
Notes
You'll have to shift the battery in its bracket as far forward as possible to allow clearance for the intake pipe. Also, in order to remove the resonator, you will need to unbolt part of the bumper cover. Lastly, make sure the intake pipe doesn't rub on the edges of the hole in the skirt where it must pass to get to the wheel well.
Tools
10mm socket, extension, ratchet, pliers, standard and Phillips screwdrivers
Parts
Filter, intake pipe, hoses, hose clamps, hardware, instructions, decals and license plate frame
Installation time
40 to 50 minutes
Temperature
Air temp @ 70.5 degrees Fahrenheit
Temperature difference from previous run: +1.3 degrees Fahrenheit
2000 to 3500 HP range: -2 to 2
3500 to 5500 HP range: 2 to 12
5500 to redline HP range: 0 to 3
2000 to 3500 TQ range: 0 to 4
3500 to 5500 TQ range: -2 to 12
5500 to redline TQ range: 0 to 3
Peak HP: 99.8
Peak TQ: 107.0