exhaust Y pipe

I just want to hook up the manifolds and my old system to run in the cam and putt the car around the block to check out the conversion. Its only temporary until i drive it to the shop for the full 2-1/4 duals. I only need the down pipes bent to go under the car, i can fab the rest to a temporary muffler. I'm still trying to get quotes for the exhaust that arent through the roof, and dont want to flatbed the car back and forth to a shop adding to the cost.