What factory Y? I thought you said you had an off-road sho-shop...I say invest in a cat back, or if you don't have the money, save up and invest in a catback. Trubendz(search) is cheap and sounds great. I have that system as well as many others. Or, if money isn't an issue, you can get another system for more...Either way, cat back is better than trying to piece together a "custom" system IMO...
