Since a twin-turbo kit is double the throttle, it's quite literally double the price too. A good quality These kits from Jim wolf technologies costs about $8,000. Other brands are also in the same range. For instance, the Can-Am Maverick also costs around $7,800. Compared to a single kit, these twin models are worth much more. A single kit by Rev9 will cost you $2400 on Amazon. So, it's worth doing the math since a twin can cost you even more than your car!