Do X-pipes really help our trucks? I have the chance to get the whole Jdm exhaust with a custom catback with the 2 magnaflow mufflers(similar to the silver bullet) the shop I talked to says the x pipes dont help our trucks. Is this true? Or would it be better for me to buy the silver bullet instead of the custom catback?

 

X pipes on almost any vehicle is worth about 5 hp. Plus they sound really cool.