whats wrong with Leo vince exhausts

so many people are telling me not to get the Leo vince ZX exhaust, but no one will tell me why. Whats wrong with them?

and does anybody know about the Yasuni C16 City, can it go on a standard 50cc Aerox, or does it need to be fitted to a 68cc block.

Leovince exhaust are exhaust for standard 50cc cilinders, they hardly go faster than the standard exhaust! Other exhausts like yasuni R, giannelli shot, polini for race are way better and match "low" reving 70cc cilinders.

Yasuni City 16 is the "legal" verion of the C16. Don't know much about it. If it is about the same as the real C16, it can go on 50cc but it isn't the best choice. It's an exhaust for midrace setups like stage6 racing, airsal70 etc.
The city16 is legal becaus it is restricted. With this restriction is runs even worse than a leo

DME3 said:

Leovince exhaust are exhaust for standard 50cc cilinders, they hardly go faster than the standard exhaust! Other exhausts like yasuni R, giannelli shot, polini for race are way better and match "low" reving 70cc cilinders.

Yasuni City 16 is the "legal" verion of the C16. Don't know much about it. If it is about the same as the real C16, it can go on 50cc but it isn't the best choice. It's an exhaust for midrace setups like stage6 racing, airsal70 etc.
The city16 is legal becaus it is restricted. With this restriction is runs even worse than a leo

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so for a 50cc setup like mine, do you think that i should go for a yasuni r.
And if later i decide to put on a 70kit, can i still use it, or do i need a different exhaust again.

the Yasuni R has an E pass does that mean its restricted, and will it run as bad as the Leo ZX.

whats a midrace setup, whats the difference between Malossi or stage6 racing, (airsal70 i have never heard of)

Yasuni R will do fine on 50cc and 70cc.
With the restriction it might even run worse than a standard exhaust.
Leo exhausts are also restricted.
A restricted Leo performs about the same as a restricted R.

Yasuni exhausts are verry well build, that's why everybody advises it.
I would go for an R, even if you don't wont a 70cc.

Midrace is a setup slower than evo etc, but faster than for example a DR70.
Midrace cilinders include stage6 racing, Metrakit SP2, malossi MHR-replica (most alu 70cc's).
Malossi also has a cast iron 70cc, but this isn't midrace.

Aloha,
LV Zx are made for plug and play. Take off your original pipe and install it and basically no need to make any other changes. It is a very torquey so for slow to medium speeds it is great. After 45-50 mph it sux. It is not tuned for higher rpm----shuts off at 9300rpm or so with power peak around 8500rpm. It also has a lot of internal baffles. It is basically a toy pipe made for the scooterist on a50cc to install and not do anything else with their bike.

Yas R, has an incredable power range and can be overevved past 12,000 rpm, has less internal restrictions, and is the pipe you will want to use if you plan any highway travel over 50mph. It is OK for the 50cc, great for the sport 70's and Ok for the Midrace setups and tuned sport 70's. There is much discussion on this board about this, so do a search. People here do not like Yas versus LV because of some kind of brand loyalty, but because of performance facts. If you are talking about 4 stroke big bike exhausts, then Lv and Arrow are tops.
frank

OK thats decided too, Yas R it is!!!
What do i need to do to the Yasuni R when i get it then, what restrictors do i need to take off. do you have anything with photos,

And should i get the Malossi MHR Variator instead of the Malossi Sport Variator?

and do you think i should up my carb to a Del 17.5mm.

Igot my new c card today, so i can start to finally get these parts this week, so i need to make sure everything is sweet, befor i put the order in from overseas.

And thanks 4 telling me about the difference's between Midrace and EVO, i get it.

Frank,
i am getting the the Yasuni R, what are the things i need to tune it and make it work perfectly on with my standard 50cc. my setup is in "my AEROX project. any better idea's"
please add your opinion.

also do you have the part number i need for the Yasuni R, for the Aerox, so i can order the right one.

Aloha, Don't the part number as I usually buy used on ebay. But there is a restrictor on the incoming flange as well as on the intake to the muffler. U need a small grinder to remove them. Do a search on this forum or the Dutch side as there are photos there somewhere. frank

You can't miss the restrictor on the incomming flange (the parts that's mounted on the cilinder). It looks like a ring with a smaller hole than the exhaust itself.
I got mine out with a screw driver
The restrictor in the muffler is a little harder. It's some kind of tube within the muffler.

DME3 said:

You can't miss the restrictor on the incomming flange (the parts that's mounted on the cilinder). It looks like a ring with a smaller hole than the exhaust itself.
I got mine out with a screw driver
The restrictor in the muffler is a little harder. It's some kind of tube within the muffler.

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did you take the the tube out from within the muffler, and where in the muffler, in the can.

It's inside the muffler. Take the can of and you'll see the tube. It's hard to explain if you've never seen the inside of a muffler