We just tried out BBr's new pipes for the 250F they are amazing !! We tried the SX header which has a lot more pull off the bottom and mid and a little better on top .
My son tried the Mx header and found more bottom , mid and way more on top with more over rev. he loves it.
My son tried the Mx header and found more bottom , mid and way more on top with more over rev. he loves it.