i wouldnt pay that much for $15 worth of exhaust piping you can get at the local car parts store...
might as well run open pipes
exactly!
however running open pipes you can potentially burn your exhaust valves because the burning exhaust gases will escape faster than they finish burning
backpressure = torque and torque = feeling faster
but the point is to slow the exhaust gases down enough to do a full burn
not exactly...
significantly changing the flow of air through the motor (cams, exhaust, intake, compression) will result in a change in fuel requirements.
too lean = higher combustion temps = burnt valves or pistons
too rich = deposits = hot spots = burnt valves or pistons
"Backpressure" is always bad for performance, because it limits the amount of air the engine can pump to something less than the cylinder's full capacity. That said, reducing "backpressure" without appropriate changes to the rest of the equation will tend to lean out the fuel mixture. This topic is fairly complex, discussions of "backpressure" oversimplify the equations.
