Most of the time when an aftermarket parts manufacturer wants us to tout its latest speed part, all we get is a press release full of promises. Airaid, on the other hand, wanted us to actually test its wares. PHR's Publisher Ed Zinke recently got an '05 Dodge Magnum, so he brought it over to the chassis dyno at our tech center.
The kit (PN 350-160) fits '05-06 Magnum and Charger RT models with the 5.7L Hemi engine and has an MSRP of about $250, although you can find it for about $200 if you shop around a bit. The Magnum was strapped to our dynojet and several base pulls were made. The best was a corrected 249 hp and 246 ft-lbs of torque.
Installation of the Airaid kit was a snap and took all of 15 minutes using only a flathead screwdriver. In fact, the installation book is only one page with eight simple steps. With the parts installed it was time to put the throttle down. After a couple pulls we recorded a best corrected-run of 282 hp and 304 ft-lbs of twist. That's a gain of 33 hp and a whopping 58 ft-lbs of torque. Quite a gain from a couple hundred bucks and 15 minutes of effort.
Peak torque is higher and it gets there faster as well.
In stock form the Magnum didn't hit its peak torque until 5,300 rpm. After the install it got there at only 4,500 rpm and that's a difference sure to show up on the street. The Hemi's horsepower was also up across the entire pull.We were pretty impressed with the performance of the kit and would have to give it a thumbs up in all aspects.
Everything you need for the install is included with the kit. All you need to supply is a
Here are the two best baseline pulls and the two best pulls with the Airaid system. As you