Pros and Cons of 2. 5 Inch Stainless Steel Exhaust Pipe Casting and the Health Benefits of Fatty Fish

[TheresaM]

that makes sense. It seems like there's a trade-off between exhaust flow and back pressure. Too large of a diameter might actually reduce back pressure, which could be detrimental to low-end torque. Has anyone here upgraded to a 2. 5-inch exhaust? Did you notice any improvements in performance?