I need a little help choosing new pipe to try out!

[bkstoffe]

Hi!
 I have a CT350 pv cylinder in my trx250r. It has mild mx porting, and I currently run a 38 A/S carb and a CT national pipe. It has cr250r ignition (2001), I also have a PVL setup that I might install.
I am looking for a good all around pipe for play and some dunes that will improve my top end some without giving up too much mid, or being real doggy down low.
I am looking at the ESR pipes and thinking about the trx9B or trx9r. Looking for opinions from folks more familiar with these pipes.
what do you think, or recommend?
thanks,
B

[Pumashine]

Most everyone would suggest a ESR 5. The 9 is a high rev. I ran a PT high rev on my 350 PV. It seemed like there was a lot more power to be had. The high rev keeps you shifting all the time to keep in the power band. The ESR 9 is a good choice. It works great on my Pilot cylinder 412cc. I still have a ton of bottom end but I think that is due to the enormous piston 83.5mm. I would say ESR 5 or 9b. Or 5b if it is available

[jcs003]

you also might want to look at LED for a pipe.

http://ledperformanceengines.com/trx250.htm

john

[ytman]

Are you saying your CT pipe is flat on top?

[bkstoffe]

It is definitely strong midrange.. maybe a bit flat on top, but its a mx pipe and wasnt really made for top as I understand it. looking for something a little more dune and drag oriented, but still good for playing in woods and local tracks.

[supernutt]

I have a 310 ported by Neil I use the TRX5B pipe for wide-open riding and I change it to the CT national midrange pipe when I go trail riding. The CT pipe definitely does not have the longlegs that the TRX5B has, but the CT has a lot more midrange.  I like both for different reasons

[bkstoffe]

Supernutt..sounds like about the same as my situation. Thanks all for the input!
Has anyone tried the ct powervalve pipe? I wonder how it acts?

[JesseA420]

+1 for the led 350g. amazing bottom end and midrange, and still decent on top but not a ton of over rev