The PCII can tune in finer increments. The Yosh box is much broader.
After using the yosh box you put it away, there is nothing extra left on the bike. The PCII is an addition and can cause problems, but it's not hard to just unplug it and run off the ECU alone. A lot of PCII's have to have the ignition circui disabled in the mas they have trouble with the Crank Sensor signal .
A forum community dedicated to Suzuki TL sport bike owners and enthusiasts. Come join the discussion about performance, modifications, classifieds, racing, troubleshooting, maintenance, and more! Open to TL1000R (TLR), TL1000S (TLS), SV650, SV1000, and all other TL models!