xZeusx
Well-Known Member
I'm looking to get Invidia N1 70mm or Skunk2 megapower rr 76mm. what is the difference on the pipe size?
I want the real deep sound on my 2013 si. I've never had a experience on the SI. =)
I want the real deep sound on my 2013 si. I've never had a experience on the SI. =)