I know this question has been raised many times, but still i can't find one solid answer for it
currently i have a cobra swept on my 2013 M109R and XTRE, can install K&N filter only or i need to have a fuel management?
and if yes i can does it improve the performance or it is pointless?
the dealer here in UAE told me yes you can and it will improve the performance however some forums/articles are saying no
any advice will be appreciated