you you have to get the fittings, couplers and filters separate. with the way it sits, the battery would be in the way. also having the battery in the trunk makes the engine bay a lot cleaner looking. i got a sound system and tools in my trunk too so trunk space is not a big concern. i have seen some people just do a piping setup that utilizes one MAF and it works. the purpose of the 2 MAFs is that is reads each side of the plenum more accurately and the change is much quicker with a shorter intake. from the manual stand point i would say it was worth the money. a lot better throttle response and you can definitely feel the power. the sound is awesome too.
http://www.ustream.tv/recorded/13422724
go to 02:24:00 and you can hear how it sounds on the dyno
they are wanting me to try a dual JWT filter setup with the velocity stacks. they said i would see another 3-4whp with those as well. once i get a job, i will be looking to get Nistune for my ECU and going to get it tuned. should be in the 220+whp range after that.