What’s the difference between these two dyno port pipes?
200 Blaster 1988-2001 MID-TOP WORKS Pipe w/ Silencer
200 Blaster 1988-2002 Big Volume WORKS Pipe w/ Silencer
200 Blaster 1988-2001 MID-TOP WORKS Pipe w/ Silencer
200 Blaster 1988-2002 Big Volume WORKS Pipe w/ Silencer