I have the same truck as you, we're electronically limited to 155mph unless you have the DINAN software which removes the electronic limit. After that yes it is when you reach the "natural limit" of rev limit in 5th.

__________________
"When you do things right, people won't be sure you've done anything at all" (Bender, futurama)

You make something idiotproof, they'll make a better idiot

You think professional is expensive, just wait until you pay for amateur.

Never let your sense of morals prevent you from doing what is right.

Examine what is said, not who speaks.

X5 pics

RIP 4.6is.....

2003 4.6is