Yeah it's doing its job well. I really need to get it tuned. I'm still debating whether to buy the wideband o2 kit to augment the tuning. I highly recommend this system to anyone that wants to make big power. I've been running into some electrical problems lately that's been leaving me stranded at times, including the Red Robin parking lot after dinner tonite. Turns out it's not the AEM, it's a loose connection under the steering column I jerry rigged a long time ago. Time to break out the soldering gun.