Dobeck Performance have just released their EJK for Honda PCX. Early results give about 1hp increase on standard bike along with an increase in torque.

No info yet on bike with after market exhaust..

Queries to <ejkthailand(at)gmal.com> they will also forward a .jpg dyno graph on request.

For more information Your Fuel Injected Bike or http://www.electronicjetkit.com/Scooter ... er=8110043

Can a fuel-injection modification like the one from EJK work with a J Costa Variator?

Of course. It is a simple plug in.

I am thinking

Stage 1 Variator
Stage 2 Exhaust (and maybe air box mods)
Stage 3 EJK to get the most out of the exhaust.

This is not for racing or blasting up and down the soi. This is for normal fast road / touring use with a little tinkering but not overly so.

who sell good exhaust for the Honda PCX, people talk a lot but nobody points

There are many. Depends on the definition of good.

From personal observations:
Some think good is a big shiny one with exposed pieces as big as one would find on a 1000cc bike but still connected to the original small front pipe.
Others think good is a cheap one that makes the right sound.
As I have seen one for 38,000 advertised as the most expensive one available some must think good is the most expensive.

If you are talking about documented performance. J Costa has one but this picture is not PCX.

<jcosta4pcxthailand.com> they will send a dyno graph if you ask. Std PCX on their dyno gave 10.90 HP with their exhaust 12.95. With airbox mod you may get a bit more but remember PCX is set up to deliver maximum torque at quite low - 6000 - RPM.
There may be others with documented proof you will need to Google a bit.

Have a PCX and have been playing with it. trying to find the right combination of economy as well as top speed, handling and power. Many talk about more power or faster, but as I have found out, all at the expense of fuel efficiency. If I want fast I will go on my Ninja. Why when they talk about their products they never talk about effects on efficency

Jeffrey,

Nothing in life is free. Engine power has a lot to do with the engines ability to burn more fuel. Just an aside fuel injectors are rated for their HP potential not necessarily their flow rate.
Any performance increase by definition will require more fuel. Are you saying that at identical performance your Ninja gets better mileage than the PCX?
Many PCX owners are happy with overall performance but simply wish to escape from behind 100 kph smoke belching trucks.
Some are larger built riders require more acceleration. EJK can be adjusted to suit individual riding styles. Less or same for cruising and only more at full throttle. This is different from the cheap ones which simply richen up the mixture across the board.
This being said EJK only gives about 1hp and it will be at the top end so yes if used the any extra performance will reduce fuel mileage.

Quote by: Somdee

who sell good exhaust for the Honda PCX, people talk a lot but nobody points

Check out Webike Japan website,there is over 50 exhaust to choose from

Quote by: Flying Squirrel

Dobeck Performance have just released their EJK for Honda PCX. Early results give about 1hp increase on standard bike along with an increase in torque.

No info yet on bike with after market exhaust..

Queries to <ejkthailand(at)gmal.com> they will also forward a .jpg dyno graph on request.

For more information Your Fuel Injected Bike or http://www.electronicjetkit.com/Scooter ... er=8110043

How much for the EJK controller?
Cheers

Quote by: Pcxdeamon

How much for the EJK controller?
Cheers

About 8000 baht or less..

Will be ordering the first batch soon. Send an email to <ejkthailand(at)gmal.com> for more info.