03 E53 BMW X5 M62 4.4i V8 - Cold air, Spaced, Exhaust, Dyno 302
Reviewed By Brian L (Boardman, OH) Reviewed for a
—4/29/2017 7:19 PM
Wow. One word to describe this product. Drive by wire (ECM MODULATED) throttle systems are awful. I miss the days of the cable and spring. The sluggish response is to be expected on today's vehicles. THIS KILLS THE PROBLEM. Feels like a real power gain (although it's smoke and mirrors) but 10 out of 10 amazing product BECAUSE OF THAT. EASY install plug and play. Feels like a 30 hp gain but it's just converting and amplifying the signal to the throttle computer. Awesome product.