|
I have the topspeed bypass with an obx muffler setup. with the muffler alone the sound was horrible. with th addition of the bypass pipes the sound got deeper and and a bit louder, but the drone was at an acceptable level. conversations were not a problem while driving on the interstate.
__________________
2005 Porsche Boxster S, 2000 Porsche Boxster 2.7L Base, 2000 Mazda Miata LS Supercharged, 2010 Toyota Tacoma TRD Off Road
Previous Vehicles: 2005 Ford Mustang GT, 1986 Alfa Romeo Spider, 1971 Alfa Romeo GTV, 1999 Ford Mustang
1977 Toyota Celica GT
|