Originally Posted by jmaxey51

the B6 may have a little more top but not much more but IMO the OD engine has a little more bottom, the wrong pipe with the OD engines will kill run time and power... we've tried the 053, JP3, RE10 and 2060. the 053 gave great run time but made the engine to smooth IMO, the JP3 gave power but 7-8min run time, RE10 gives alot of power and great run time, 2060 gives smooth great power and the best run time, my favorite pipe on this engine... havent tried a R2 yet though ... the B5/B6 are good engines but the OD engines will hang with them and last a good while and are cheaper.