Removing the hood reveals the stock engine, loaded with Kirby custom headers, a PWR radiator and a transmission cooler. James tells us that by the time you read this he will have already swapped in a 6.0L Chevrolet Escalade motor. That should give this mid-sized truck some get up and go. The entire truck front to back was built by Kirby Off-Road. There aren't a great deal of aftermarket components for Nissan trucks which meant James was going to have to drop some good cash to get the truck he wanted out of his Frontier. Kirby was more than up to the challenge having built race-winning vehicles for years.