It theory it should just be thel cost difference between a Typhoon and a Nasty Typhoon + the stock hurricane. Mounting into the stock and the 4 way valve etc shouldn't cost more
Stock Typhoon: 643
Nasty Typhoon: 990
Difference: 347
+
Hurricane 969
Total: 1361
Makes sense, considering you could buy a Nasty Typhoon and then pay $350 to get it converted to a Hurricane.
But then you add the spring feeds (+$200), blazer detentsx2 ($90), pump kit ($70 for a single, so $100 for a nasty?), & ASA ($40) and you'll be sitting at the same price as my first car
