I had my S/C installed at the local Isuzu dealer. Their master Isuzu mechanic did the install, in their shop, with their equipment for $300.00 cash. This all was done duringt regulart business hours. The mechanic just di not work on any other Isuzu's unitil he finished mine. It took 4-1/2 hours to do the complete install. This guy is really great!!! He gave me a new serpetine belt, new injectors, flushed the radiator and brakes all for the $300.00. What is interesting, is that the entire dealership has adopted my VX as their own. Everytime I come in to the dealership, they all parade out to see the S/C VX and ask what else I have done to it lately. If I trip a computer code, they come out and tell me what it is, no charge. I had a code come up for the MAF about 6 months ago, my mechanic buddy gave me a MAF off a 2001 that had a complete engine change for no charge. It turned out that there really wasn't anything wrong with my MAF. After talking to John at Alpine Developments, he said that with the 5 PSI pulley, sometimes after driving at higher speeds under boost for a period of time, the MAF registers that too much air is going into the engine and trips a soft code. It resets itself after a few start ups and there is no need for alarm.
Anyway, this is classic case of not what you know, but who you know. This is by far the best dealership I have ever worked with on any of my cars. They know what they are doing and always insure that they do their best job on anything they do on my car. I wish all of you could have the same experience at an Isuzu dealership that I have had. Today my buddy is going to install my Interceptor Shift Kit, again for no charge. I always let him take it for a drive when he's done, and he always comes back with BIG grin on his face.
As far as taking 10 hours to do the job, if your mechanic works really slow and does not have a lift or all the tools he needs, it MIGHT take 10 hours to install. It should be about a 4-1/2 - 5 hour job for someone that knows what he is doing.