Topic Moved and Approved.

the stock airbox has a small air flow capacity.it is usually done so to improve mileage(less airflow= less petrol).to see how much an engine sucks air and how restricted it is, just open the battery cover.u will find a inlet pipe to the airbox on the right top side of the battery.
now start the engine and rev it with a hand close to the inlet.
see all the air gushing through?
the reason why uni is recomended over a k&n is that because of a k&n's design cone, it tends to send a reverse wave which will screw ur jetting and is not healthy for a two stroke engine

the cdi offers benefits in the following ways
1-improved spark strength
2-dynamic timing

spark strength would mean ur fuel/air mixture is burnt more efficiently
dynamic timing adjusts ur spark timing(with respect to crank angle)depending on rpm
at low rpm's the engine needs to fire after tdc(called retard).however at higher rpm's the spark should occur at or before tdc(called advance).however on a static system the spark point is set at a fixed angle(say 23 deg.) at all/any rpm's.hence the spark timing is off(not perfect) at most rpm's except where it is timed.

rdd cdi is a dynamic cdi and hence has the above mentioned advantages.
the above explanation is very basic.there are a few of other factors in all of this.

the uni supplied by rdd has the advantage of ets supplied with it to match ur bike.
hence u wont have to roam around searching jet sizes to sort ur jetting issues.

^^^ thanks for that

you got me confused here:

can you please elaborate ?

post edited
an k&n will send a reverse pulse through ur carb making the fuel richer.it is fine for a 4-st but on 2-st it's not appreciable.
it's a problem due to k&n design

^^^ thanks for that looks like a worthy upgrade

any idea of the pricing for the RDD CDI & Uni Filter for the RX 135

ask torqu3e on this forum or on rddreams.com
i believe its <3k for the rx cdi ver5
and 1800 for uni with jets for rx
howver contact torqu3e to confirm.

it is 2800 and not in stock rite now and even the UNI and the jet is not in stock

Aravind whichever arrives first either RDD cdi or Uni i will inform you ..

^^ thanks pradeep

looking to change over all maroon also to 2003 big cat con silencer

whats your say ?

thinking to sell that red tank,shields & silencer

the silencer-not a wise move

why do you say so

guys how good is the RDD CDI on a ported n piped setup ??

not recommended unless ur getting a custom curve

The cat silencer gives a smoother feel and a little more kmpl. Also smokes less. But it lowers the performance(not too much though) compared to a normal exhaust. And if you are into wheelies, cat is a very bad idea coz it weighs too much and all that weight one side will be a problem while riding on one wheel.