Our good amigos at Superchips have just released a brand-new performance programmer for the 2005-07 Nissan Xterra 4.0L V-6. Users are said to gain up to 16 rear-wheel hp and up to 18 lb-ft of torque at 4400 rpm with the new module. Other key features in the Nissan Cortex include the best drivability in the industry, enhanced throttle response, wide open throttle restriction removal, speed limiter adjustment, rpm limiter adjustment, diagnostic trouble code read and clear capability, and an industry-exclusive 2-year powertrain warranty. For more info, call 407/585-7000 or click here for all the inside dope.