With the exhaust mounted up... My 70CC Wizard VM20 Express is ripping!!! Needs a down jet, timing adjustment, and the spokes checked but it managed 40mph (radar sign) no problem.
Now for the things I don't like... The silencer gets dangerously close to the turn signal even after bending the signal mount a bit. I actually ended up having mine melt. I think the nut rattled loose and the indicator sat on the hot pipe.
Second thing I didn't like is the paint is already going bad! After my first shake down run the paint started flaking off of the silencer elbow and the areas around the elbow on the main chamber are cracking. I'm likely going to have to clean off and touch up these areas to prevent it from ending up like my rusty MLM next level pipe.
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Perfect
February 23, 2023
taco eater :
Tyson Pooch from Stoughton, WI United States
I was a bit worried to see the bolt flange was welded in place but the fitment is absolutely perfect with the oversized copper gasket on the italkit 50cc cylinder. Very nice low rumbly tone as well.
I still have tuning to do but it kicks in at 18mph and pulls wildly up to 33ish. Broke my dang speedo cable!
The rear fender bracket is solid enough with one mount and the exh side bar bent in(not bolted to anything) to clear the muffler. Even my double wire basket in back fits over it with very minor modification.
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Ripper
March 10, 2022
taco eater :
Alex from Vancouver, WA United States
This thing really wakes up the top end. I have a 1979 NA50 witht eh DR70cc kit. What a difference. Love feeling that powerband kick in.
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Love the way this rips
August 14, 2020
taco eater :
Ricky Anderson from Neenah, WI United States
Put this on my mostly stock 1980 NC50. The header pipe was a bit large and took a little modifying. There's a drop in the low end performance but that was never that great to begin with. Once it hits 18-20 it rockets easily to 35-40.
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1980 NC50 - DO IT
April 7, 2019
taco eater :
EL from NORTH ANDOVER, MA United States
Just stop trying to find a cheaper option and do it. RIPSSS.
On a stock cylinder: kicked in at about 18 and pulls hard to 35. Maybe more if you aren't fat like me!
W/ DR kit and VM18: Still tuning... but kicks in at about 8 or 10 mph.
Here for a good time, not a long time 
Perfect