How fast would a 2000 300ex go with a white brothers e-series pro meg alluminum silencer, dyno jets, and an K&N air filter?

 

probably around 64 mph, because a white brothers is one of the best pipes you can buy for the $$$

 

Pipes and filters, etc. do not add any top speed unless it raps out higher, but it won't because it will just hit the rev limiter. I know because I used to have one and it would hit it stock and with a pipe and air filter. The only way to add top speed is with taller gears or bigger tires.

Street