MotoCreations Boom Tubes exhaust for the S4RS

[c_rex]

I have been waiting for these for a long time....... my s4rt is begging for a set of pipes. I can't wait to see the finisshed product.  And once again  c-rex hats off to you for an outstanding work of art.

aw shucks- the bikes in this community are responsible for 90% of the way my bike looks.  Just look up at Magnus' "Black Fog"!~

[He Man]

Magnus' blackfog has the SEXIEST set of boom tubes. If i can get those, holy cow batman! I dont like the ones that point of at an angle. So how much do i have to pony for a set of boom tubes like Magnus' I WANT!!!!!!!!

[Magnus]

aw shucks- the bikes in this community are responsible for 90% of the way my bike looks.  Just look up at Magnus' "Black Fog"!~

and i look right back at yours c_rex...  your s4rs is sinister!

[macker]

Hey NAKID did you run into the surging problem with the tubes or did you unplug the o2? I had done my own exhaust and it is bassically straight pipes not much for baffles and since then mine surges when cold.  Was told that I didn't have enough back pressure to heat up my o2 sensor so it couldn't function properly so I unplugged it and my engine light came on.

[NAKID]

I have an 06 so no engine light problems. I had my O2 sensor unplugged before the boomtubes. I have an early set so there are no provisions to hook up the O2. I don't currently have any surging. "Occasionally" i get a bouncing idle when the bike is cold, but not too often...

[MotoCreations]

A note for the S4R enthusiasts.  Just dyno'd a S4R with BoomTubes.  One more horsepower than the Zard exhaust that was on the bike previous. (same dyno although warmer temps today) Also no peaks/drops as per the Zard system - it's a real nice curve that surprised me. I'll post the dyno runs in a few weeks when available for sale.  I'm curious to see what the final horsepower levels are once the manufactured system ships on the S4Rs Monster! (in comparison to the stock udder setup)

Everyone keeps telling me that BoomTubes will only LOSE horsepower and torque -- especially in comparison to stock or aftermarket exhausts.  I think I'm going to have a few surprises (besides the weight differences) for everyone given the back-to-back dyno runs we've been making as of late in testing and system optimization.

[JDS 07 S4Rs]

That is interesting. Just the fact that U never lost any HP is inspiring.

What ECU or other tuneing device does this bike have ?

I would like to see what the RWHP is.

[moto4us.com]

So these open tubes bring more hp&torque?! I'm really curious to see a dyno run...anyway I don't want to see too many runs on same bike with factory ecu, because that bike will need some engine work.

[He Man]

So these open tubes bring more hp&torque?! I'm really curious to see a dyno run...anyway I don't want to see too many runs on same bike with factory ecu, because that bike will need some engine work.

I dont think these are straight pipes are they? i would like them baffeled to a certain extent. As cool as straight pipes are, my hearing has went to shit since i got my S2R1k. (open udder)

[MotoCreations]

Answers: PCIII, crossover (although they look the same as straight), baffled.

[El Matador]

As soon as you plan on prototyping for 695 give me a shout 

[TAftonomos]

Waiting on dyno runs and a vid w/sound.  Are you re-using the stock headers on the rs bikes? 
Any more pics from the other side, under, etc?

[Gus]

I've got an 07 S4R with a full termi kit (dp ecu as well).  Would you expect a drop in performance if i went with the boom tubes exhaust under this setup?  And also, what is the I.D. of the boomtubes?  (I like the look of a 50mm pipe on my bike.)

[TAftonomos]

Any updates on the dyno runs?  What about the other questions? 

[MotoCreations]

For the S4Rs we need to overcome one unique obstacle in regard to the system.  Thus special tooling is being made by a 3rd party (thus the delay) due to the oblong exhaust port unique to the S4Rs that immediately is radiused and changed in outer profile into round tubing and then offset for the vertical cylinder for suspension linkage clearance.  Front exhaust port routing isn't as horrible as you have a few inches to make everything work.  Worse case scenario is we will have to do the exhaust headers for the S4Rs by hand fabrication. (and raise the MSRP for S4Rs systems to account for that)

Once I have a production setup here, there are a couple of local S4Rs that will get dyno'd with BoomTubes (w/Rapidbike setup via Anthony / DesmoWorks with mapping here).  All are active posters here on the DMF and I'm sure they will post.  I'll take orders as mentioned previously against the existing database first.  Options will be baffle variation and exhaust tips themselves (there are a few options in the works).  Exhausts will be stainless or black coated.

For those at MotoGP this year, a Ducati Monster enthusiast from Mt. Shasta will have his red S4R bike with pre-production BoomTubes on it at Ducati Island.  (I'm hoping to route him a production set if available  -- exhaust 2-into-1 headers appear to be no problem) His first ride was 2+ hours and many more since in the NorCal area.  Given his profession, they are good around town -- provided one keeps it under 6000 rpm.  When out in the country, he opens it up as they literally sing for miles.  He seems much happier now than with the Zard's that were on it previous.  (and I'm getting a lot of inquires from everyone who has seen/heard his S4R in the area)