dr.d headpipe

[diesel423]

I got the dr.d slip on on my quad and was considering buying the headpipe i was wondering if the power increase will be worth the $170 price tag any info will be appreciated!

[tsargent4]

i just bought a dr. d slip on off a guy and he had the full system at one time because he test for Doug Dubach, and he said it was only a slight increase but you could tell its performance over a lot of other full systems. I have a full BUB Moto C-4 system, that IS AMAZING...but if you have no mods done to your motor there's no need for a full system really...so i went to slip on...and a buddy of mine has a dr. d on his and I believe by now if he thought it was needed, then he would have already got the header, but has not. Just curious what year your quad is? Mines 06, what jetting are you running...Main, Pilot, Needle clip? I'm in Indiana so our setting should be similar. Dubach recommends 172 main, 42 pilot and 6th clip on needle.