I converted both 4/4 and +8 to side exhaust with removed silencers, best sound ever and I drove the +8 8000 miles on Morgans Over America with no noise issues for me. Can't hear my wife now but that's a blessing
Bruce 1964 4/4 Series V Comp (Megan) 1994 +8 (Maurice) 2013 M3W (Olga)