LCE sells the Flex-a-Lite model 2010 dual fan kit and it probably can be found a little cheaper at summit or jegs. There was a used one for sale here on CT too (it might still be?). I've had mine for about 1.5 years w/o any issues. Noticed a snappier throttle and a little more power. Not a major change, but was a slight improvement. Others have used universal fans w/similar performance and reliability results. Tred here hasn't had any luck with any e-fan. Search the Performance section and you'll see a ton of threads.