Paul, does the weld together unit have better performance than the FMF spark arrester unit? If not, why not just buy the FMF complete spark arrester? If so, any idea why?
Also, have you ever sound tested? For the ISDE Qualifiers, I have to sound test at 96 dB, so always a concern. With the FMF Turbine Core, I sound test at 92 dB, which is way less than the new four stroke bikes. I have seen some folks stuff the airbox full of rags to pass sound test, and then remove after taking the bike from impound before their start minute. I like to play by the rules, so need to keep her less than 96 dB. I have a brand new stock muffler that I could modify, so....
Thanks
Rick