Side exit/AAR style exhaust

Do you have fenderwell exit headers, or under chassis?

I have under chassis headers.

AAR exhaust mufflers had the inlet and outlet on the forward facing end of the muffler. The reason they did that is because some state's laws required the exhaust to go at least as far as the rear axle centerline.
When I bought my AAR in 70 the mufflers and tips were in boxes in the trunk. There was a printed service bulletin in with them explaining that the installer needed to consult and conform with local laws when installing them. I think that some states even required the exhaust to exit the rear of the vehicle.
I know thats how they were but I don't care fore that design. Rerouting the exhaust 180* has to kill a fair amount of power. Most law enforcement I've run into don't care about old cars in good condition. I'll be running the pipe off the headers, into the mufflers, and out at a 45* angle with 45*/slant cut tips inline with the body