Cranking away on my 55 F100 pickup... No cab or bed on the frame right now and I'm building the chassis up as a roller complete. I'm fabricating the exhaust from mandrel bends that I bought from summit racing. The whole system is 2 and 1/2 inch pipe and my mufflers are dynomax super turbo. I'm putting an h style crossover pipe in. The front of the system will bolt directly to block hugger headers. The exhaust is going to exit out the back underneath the relocated gas tank. How many exhaust hangers do I need and where do I place them? Thanks in advance!