Postby Snowmotion » Sat Dec 21, 2013 7:58 pm
Fitted my Empire headers for my NB today.
They required a bit of work to make the ports smooth but with a little bit of work I was happy with the result.
I had to modify the rear flange to fir the stock mid pipe which was a little surprising as no one has mentioned this before. The holes in the flange were too narrow for the stock mid pipe, so I cat out the ends of the flange so they would fit.
Performance wise the mid range was a little down but stronger from 4k rpm. Happy with the sound and the final fit but it was disappointing that I needed to clean up the ports and cut the rear flange.
So, If I had my time again, I would probably spend a little more on the X-force header.
NB8A| WP 1:15.6 | SMP-S 1:08.56 | SMP-N 1:21.35
NC1| WP 1:09.42 | SMP-S 1:03.191 | SMP-N 1:16.1856 | SMP-GP 1:48.288