I'm pretty sure he does,he's been at this stuff a long time but with all the knuckleheads out there trying to flash and fool with everybody's ECU's(I hear it's even all over Facebook now )I'm pretty sure he doesn't want to see anybody installing his stuff on a bike where somebody may(or may not)have messed a fueling map up and then blame his exhaust system when the bike runs like shit.
His stuff is way overpriced anyway.
I never drank the Brock Kool-Aid,I always use Akrapovic exhausts. The quality is top notch,they produce some of the best midrange/top end for a street pipe and not that it matters,
but many of the bike manufacturers use Akrapovic on their race bikes like Yamaha on their Moto GP bikes,Team Kawasaki on their Superbikes,Team Honda,etc. What does this have to do with a
street bike pipe? Not much,but if billion dollar companies trust Akra quality you can too.
Besides,like you said Brock's prices are ridiculous. Who the hell pays $369 for a PCV? I bought mine brand new for $210 shipped with a baseline map installed. This is the main reason I wont buy most of his products,and definitely wont buy his pipe which is made by Hindle.
Bottom line is,it's your money buy what makes you happy. But there are other exhaust that are equal/and or better than Brocks/Hindle. Just do some research