I watched most of this video earlier today.
https://www.youtube.com/watch?v=6-o6xWOWFU4&t=908s
I couldn't help but notice how effortlessly that engine revved up to and beyond the red line, very close to 7000.
I often wondered if my engine was underperforming as it really seems to struggle after I get to app. 5500 rpm.
I've had it to redline but it was a struggle.
Is there something I should look at?
The cat has been replaced with a cheater pipe and the muffler has been replaced with a Borla 1 in 1 out.
Could the muffler have something to do with the engine's reluctance to rev freely?
Thanks,
hughc