06 YZ250- 3 brand pipe shootout by me.

On Wednesday I'm gonna do my own 06 250 pipe shootout, well sort of. I'm gonna try a Pro Circuit Works pipe with R304 shorty, FMF SST with an FMF Shorty, and the stocker with the R304 and FMF silencer. I'm gonna test them out in open sandy desert and an MX track that I made out there. Theres hardpack and area's with deep sand. Its gonna be in AZ so temps will be dry and 80 ish. Anyways I'll let everyone know how an average rider thinks the setups stack up. So far I'm likin the stocker with the FMF shorty.

Your right Satch, stockers good stuff. :thumbsup:

Yes... let us know. Also compare them to the stocker/stocker so people with base line stock setups will have a baseline to compare with.

Also... if you have a friend with another bike there that can drag race you with all the different setups that would be good. That way we would also know which one would be fastest for a good hole shot.

You will find out that the stock pipe is better than most aftermarket ones.

Yeah I'm interested to see how all three compare. I will post all the specifics Wednesday night.

Yeah I'm interested to see how all three compare. I will post all the specifics Wednesday night.

I'm anxious to read your results. :thumbsup:

My money is on the stocker with the Pro Circuit silencer........

On my 01 yz125 i recently went to the stock pipe with a FMF Q silencer from a SST/shorty. the stock/Q seems to have quicker pickup. but then again i might just be crazy.

Its gonna be in AZ so temps will be dry and 80 ish.

Must be nice! :thumbsup:

It snowed a little here in Ohio today. :thumbsup:

My '99YZ was better with the FMF Gnarly and the stock silencer. Of course that was for the woods. :bonk:

Hav fun testing! :bonk:

A stop watch is better than a drag racing buddy.

Don't forget you bag of jets.

Well gonna have to wait for the w/end now. Started to rain, yeah you heard it right its rainin in AZ :bonk: Plus my Pro Circuit system hasn't shown up yet :thumbsup: Days not over but I don't think its comin :thumbsup:

looking forward to your review. I suggest the blindfold test though. Sometimes the bling feels faster. :thumbsup:

looking forward to your review. I suggest the blindfold test though. Sometimes the bling feels faster. :thumbsup:

yes, the bling does make it feel faster, it would be sweet if you didn't know which pipe is on the bike, some how cover the pipe... but o well i want to see what the difference the PC does, so far I have the 304 silencer with the stocker

I like the PC Platinum with stock silencer. Gnarly bottom, with overrev.

Rain in Arizona??? How did that happen???

I run an FMF Gnarly and TCII sparky. Feels pretty good everywhere, but I recently bought a PC Works pipe and a stainless shorty for a 100 bones... Gonna test it out this weekend. Ill also probably bring my stock stuff and my FMF stuff to do some testing. I too am curious.... :thumbsup: Some how though, I think the PC with the shorty is gonna be bitchin. But because I ride so much off-road, the Gnarly is nice because it is so stout.... Its only got like six dings in it... :thumbsup:

OK I did the Pipe "Shootout" this Saturday. This is how they stacked up for me.

Bike = 06 YZ250. V-Force3 reeds. Stock Gearing.

Jetting = Stock pilot. Stock needle and clip pos. 180 main, (1 up from stock). Stock air screw set 1.5 out.

**Note: 180 main on all tests. 178 looked a little lean but performed same as 180**

Fuel = straight VP C12. 30:1 mix (Yamalube...always!)

Temp = 80 ish, sunny, dry

Riding area = Open Desert. Deep sand, Hardpack area''s, MX type track with DEEEEP sand whoops, lots of berms with jumps right out of them. Hardpack and Sand berms.

Rider = 165 lbs. Stupid old man who thinks he's 16.

1. Stock pipe with PC R304 shorty and FMF Shorty. I included these 2 together because both silencers performed almost identically. Fit and finish on both cans are a 10. FMF shorty is just a little louder. The silencers make the motor snap and really clean up throttle response. Right away you can notice the difference on the bottom and thru the mid. Bottom end gains are really noticable, especially pullin out of turns with deep sand. The mid pulls harder and crisper with no overrev loss. Without a Dyno there is no noticable loss on top end overrev either. What I liked most with this combo was how the different silencers gave the bike a "lighter" feel. It produced more snap and made the motor crisper so hitting big jumps was easier. Thats what made the bike have a "lighter" feel. Power comes on sooner and hits hard, it really wakes up the charecteristics of a 2 stroke. Great combo if you are a 2 stroke die hard and love the crisp snap and hard hit of the power band.

2. FMF SST with FMF Shorty silencer. Fit and finish is awsome, top notch. Bolts on with eez, installation is a peice of cake. Stock pilot and needle are perfect. Stock main is also good, but I went up one because my plug looked a little lean with a 178. The first thing I noticed with this combo was how much more torque it gave my bike. Throttle response was perfect and immediate. It was noticable right from the bottom to the top. It made my 250 feel like a 4 stroke. I was able to shift way sooner in the deep sand and turns. Wheel spin was reduced comming out of hardpack turns since the motor didn't want to rev out high and quickly. Some of the 2 stroke snap was gone with this combo and moved to produce more torque. I noticed that I lost overrev in the middle and top, but traded it for more trackable torque. This pipe combo produced the most 4 stroke like power, it smoothed out the powerband hit and took away the snap when you crack the throttle. In exchange you get more trackable torque with less wheel spin all across the range. I could definately have run a 49 tooth rear and maybe a 48 with the power it produced in the mid and top. I could pull 3rd gear starts and grab 4th quickly.

2. Pro Circuit Works with R304 Shorty. Just like FMF for fit and finish, top notch. Throttle response was crisp and immedeate also. On the bottom I noticed it pulled a little longer and harder than the other combo's. In the middle it gained some overrev and pulled long with plenty of power. It was very similar to the Stock/304 & Shorty combo. The Works pipe had a little more torque up top but signed off quicker than the Stock combo. It sacrificed top end overrev for torque. This combo was really good in tight sections and deep sand, it also revved higher and longer than the SST combo. The PC combo didn't smooth out the hit and powerband like the SST did. It produced 2 stroke like power and was very similar to the Stock combo. I did notice a loss in Top end overrev especially in wide open sections compared to stock combo. This was a great set up in tight situations when you need a little extra on the bottom and mid and aren't needing to use top end power alot.

Well my favorite combo was the Stocker and either the PC or FMF shorty. I love the Top end overrev and how hard the motor hits with this set up. All I noticed were gains across the power band with switching out the silencers. Anyways just what I came up with, but just between these three different set ups there are a considerable amount of differences....Go Ride :thumbsup:


Thanks for sharing this info. You might have saved some of us from buying a combo that might not have fit our style.

I knew from the first day that the stock 06 pipe could not get any better. I mean how could it? It simply is amazing in its snap and spread of power mixxed with a extremely meaty middle range that tapers slowly top and bottom. But I also knew that stock silencer could be improved. Its too long, and the end cap has that silly lip on the inside that makes a tight spot.

I wonder how a normal PC or FMF silencer would do on a stock pipe?


thanks for the write up. Do mind if I share your info over on ATM?


thanks for the write up. Do mind if I share your info over on ATM?

Have at it brother :thumbsup: What's ATM?, besides the card my wife took away from me :thumbsup:

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