Exhaust

21 Harley-Davidson Ultra Limited discussion forum:


Exhaust

Exhaust 
Jason Holland said 2021-08-16 01:53 
 
I have a 2021 ultra limited 114 m8 stock no upgrades no tuners, I drilled the baffles out and all the insulation, was wondering if I could cut or drill the cat out? Would it run crappy, would it through a code, is it to much back pressure?
Any help would be great, thanks. 
 
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