I've got a oil seal leak on my turbo "exhaust side" to minimize down time the purchase of a new HX35 is in order. My question is sould I stay with the stock HX , my truck is stock because I don't want to jeopardize the engine of its durability and dependability. It's a 99 service truck and weighs 11000 lbs all the time. If there's a product or upgrade thats inhances the durability and dependability , I'm listening. Thank you for any help.