In my opinion the AEM short ram is a good cheap alternative. Keep in mind that after market Intakes systems are also tuned using the piping length and pipe diameter. Not saying your home made one will not work but I'd pay the 80 to 90 bucks and get the AEM short ram or the RS akimoto. After 3 honda's and about 90 stereo systems, I've wasted more money in trying to save money than just doing it right the 1st time.