Upon arrival at North Bay on a trip I took August 2002, I scoot over to ONR's Locomotive Shops to snap a photo of the classic 1600 Series GP9's with the chopped noses. These North Bay regulars look quite abit rougher and alot rustier since the last time I've seen these units back in the 80's in Cochrane Yard. One noticeable change to 1600 (seen here) and her sister unit 1604 is the addition of spark arresters on the exhaust pipes of the units. 1604 also has the new "Smart Start" feature installed for better fuel economy.