Besides about $20 is there really any difference between the two?

I'm thinking about ordering one in a month or two and any suggestions would be greatly appreciated.

TIA 

My Marving mid pipe was in stock at monsterparts and arrived in a few days.  A Spark pipe was going to take a few weeks to come from across the pond 

That aside, the Marving pipe fit and looked good.

Thanks for the pic webspoke.  Looks good 

Man that looks so much better without the udder.  Does that have the crossover like the Sparks?

I know that you did not ask about the Quat-D...but that is what I have and am very happy with.  I got mine from Jeff at Monsterparts, but I don't think he carries them any more...



Then I added the Leo Vince Slip On Muffler



I'm happy with the results!!

Thanks for the pic and info monty.  As a matter of fact the reason I am wanting to know the difference between these two models is because I am planning on buying one from Jeff.  These are the models he currently carries.  Except for the minor price difference and my not knowing if the Marving has the crossover pipe and if there is an advantage to the crossover pipe they seem pretty equal.

I have the Sparks.  Made a noticeable difference in performance and sound when I installed (I now have cored cans which made it even louder, though not nearly as nice as Arrows or Termis.)  The Sparks was a great mod, I'd definitely recommend, even with stock cans.

They both have crossovers - says so on MonsterParts website. Some models with, and some without provision for O2 sensors.
I have the Spark on my S2R800 '07 and I'm more than happy, much more. I got them to get rid of the udder, for looks only. People told me not to expect any improvement in sound or performance - they were VERY wrong about sound, and they might have been wrong about performance also. If my sound with open airbox/ECU/Termi cans was a 6 - then the sound with the midpipes is an 8. I guess S4R with the full system is 10.

My dealer installed mine. He usually installs the Termi pipes, but he said he never put on any brand of pipes so fast and with NO issues. No problems fitting them and no leaks - on his first attempt - usually takes some trial and error to get it right. He adjusted the bike to run a little richer, I think that means it flows more air with the midpipes, therefore the required adjustment towards more fuel - maybe therefore a performance gain (not always so, but in my case it seems to be more willing to be flogged)

When I did my research, I wasn't able to find any important differences between the two brands. I chose Sparks for price and availability, never regretted it.

And yes, I got mine from MonsterParts

I used to have the Marving midpipe (the desmoquattro S4R and the S2R share the part and it has a crossover) -- I got it from Spareshack.

If Jeff at Monsterparts has them in stock, I'd get one...fast shipping and great customer service.

If i were to do it again i would purchase the Marving. Shown above is the Spark and in my opinion it hangs too low, meaning, look at the gap between the engine and the horizontal pipe. I was told this is normal, the Marving seems to fit closer to the engine, which i like. Don't get me wrong, the Spark had NO fitment problems and went in without any cussing.
I ordered mine from Chris at Desmoworld on a Monday, and received it on Wednesday...and he is in Germany! I have bought lots of stuff from Monsterparts, and they have exceptional service as well.
My beef with all of these midpipes are the crossover is in the wrong place, and i feel that for the money, it should be placed correctly. I like most folks wanted to get rid of the udder ASAP. So now i will be building a complete custom exhaust with properly placed crossover in the coming months.

hope that helps,
RB

Quote from: RB on January 16, 2009, 05:55:50 AM

My beef with all of these midpipes are the crossover is in the wrong place, and i feel that for the money, it should be placed correctly.

Where would the correct place be?

Quote from: stopintime on January 16, 2009, 09:31:22 AM
Where would the correct place be?

the crossover needs to be equal distance from both cylinders, a distance of 23.5"(597mm) to optimize HP scaveging. Look at the stock exhaust on the new 09 monsters, they have speghetti, like the more expensive 4v desmos.

I now have 11,000 miles on my Sparks and thay have been great.  Easy to use, easy to clean and doesn't interfere with the oil filter.  They have a great sound and I would buy them again in a heart beat.  I purchased the from Desmoworld in Germany bu got them next day air no problem.

I have an S2r 800 and really want to get rid of the udder. Some poeple have said that replacing it with a mid pipe will cause the bike to run too lean and that a Power Commander will be needed to properly adjust the mix. Have others here found this to be true? I hate the udder and would take it off in a sec but i'm getting conflicting info which has caused me to hesitate. Any ideas? 

The way I understand it, You can change the Air box, OR the Exhaust without using a power commander.  BUT if you change BOTH you will need to adjust the Air/Fuel mix.  Also, depending on the year of your S2R800 your dealer may be able to tweak you stock ECU to work.  Please correct me if I am wrong...

the ds1000 Spark pipe looks much tighter then mine.

The S2R800 runs lean out of the box. If you change just the midpipe you shouldn't have an issue, but as stated already if you mod the airbox, open it up and add a K&N type filter, it WILL run much leaner. The best bet is to figure on a power commander or an ECU reflash. Honesty, the dealer may be able to richen the mix up once you put these mods together, but it they may not be able to richen  it up enough. I had my bike in for the heads to be warrantied. I put a midpipe, cored the cans, ported/polished the heads  and had an open airbox, and the dealer told me he richen the bike up as much as he could and it was still lean.....enter the power commander to fix all that is wrong.

Hope that helps
RB