Another successful exhaust mod...

[X5 AFICIONADO]

What is the main difference between the X pipe and removing the resonator? It should be almost the same

[Intel55]

Originally Posted by X5 AFICIONADO

What is the main difference between the X pipe and removing the resonator? It should be almost the same

putting in the x pipe smooths out the exhaust. Without it you may getting some "popping" and "gurgeling" on decel.

[realchef]

Originally Posted by X5 AFICIONADO

What is the main difference between the X pipe and removing the resonator? It should be almost the same

X pipes have come from racing. The design improves power and Torque (slightly) by increasing efficiency. The cross-over allows the existing escaping exhaust gases to work in tandem in order to scavenge the next cylinder as the exhaust valve opens. Leaving the cylinder more empty, ready for the next compression stroke.