not even $75. i would say about $50.00 it looks like he madea custom mounting bracket on the exhaust side that you would have to do or you would have a few extra holes that you done want.
see if you can get a shop to bend you up a aluminum intake tube, even a 'crush bend' style pipe would be much better than that style tube, the kinks are gonna slow your air down a lil bit, where asmoother bend with flow better, alowing the air to hit the carb faster....
basicly you want the motor to suck in the air as fast and efficiantly as possible so a smooth tube will help with that