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Expansion Chamber - BLACK - Exhaust Pipe

$73.95
SKU:
SBP-ES002
Quantity:

Product Description


BLACK Expansion Chamber Exhaust Pipe - increase the power of your 49cc-69cc ("80cc") engine. Low cost yet heavy duty. The ability to tune and fit almost any bike makes this newcomer to the market a real treat. Fully tested by our testing team. This pipe gets rave reviews for dialing your engine UP. Along with a few minor mods, tuning the pipe puts the power band where you want it, and when your engine comes on this pipe - you will know it. Supplied with everything you need along with our online instructions: the pipe, fittings, hardware, a hanger, a silencer and a hefty Al exhaust gasket. Each bike is different and some fabrication for hanging the rear of the pipe may be required. The typical installation will require the use of a rear mounted kickstand.

Pipe Installation Instructions


NOTE: The high temp silicone hose seal parts supplied with this kit are BLACK, not blue as shown here and the installation manual.

NOTE: Must ship separately from Shifter Kit.
PLEASE CONSIDER THE SBP HD CDI AND OTHER PERFORMANCE ACCESSORIES WITH YOUR CHAMBER KIT

Product Reviews

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Showing reviews 1-10 of 59 | Next

  1. Exactly what I was looking for! 5 Star Review

    Posted by on Mar 13th 2017

    I looked for months for just the right expansion chamber for My beach Cruiser, Finally I found this one and when I got it I was pleasantly surprised to find out that in fact, just like they said, it was totally configurable. I needed low end torque and that's what I got! No ifs ands or buts!

  2. 1 Star Review

    Posted by on Sep 5th 2016

    Save your money I've had nothing but trouble with this piece of crap since the day I bought it now it's cracked I live in Canada cost me over $150 wasted money piece of shit

  3. 5 Star Review

    Posted by on Aug 1st 2016

    This pipe is the bomb!!

    The best bolt on mod for these bicycle 2strokers . This was an amazing upgrade and I could tell immediately that was working . I Gained unbelievable low end power . I dropped from a 48 tooth to a 36 tooth rear sprocket and now my bike dosnt rev too high at speed and pulls me up any hill with ease . I weigh 230 lbs on a 26" mountian bike.

  4. 5 Star Review

    Posted by on Aug 1st 2016

    The best bolt on mod for these bicycle 2strokers . This was an amazing upgrade and I could tell immediately that was working . I Gained unbelievable low end power . I dropped from a 48 tooth to a 36 tooth rear sprocket and now my bike dosnt rev too high at speed and pulls me up any hill with ease . I weigh 230 lbs on a 26" mountian bike.

  5. 1 Star Review

    Posted by on Mar 13th 2016

    I dont know why everybody gives this such good reviews. The copper fittings and rubber hose connectors are terrible. The hose clamps had to go on pretty tight just to hold everything on. The heat melted them and everything just fell apart. If you buy this I would look at completely replacing the copper fittings, rubber hoses, and just weld it all together.

    SBP response:
    After working directly with the customer to evaluate the cause of his issue we determined it to be somewhat of an extreme case. The addition of a high compression head, reed assembly, carburetor and ignition upgrades all contributed to higher than normal exhaust temperatures. In reality only the seals at the exhaust header saw any serious degradation. Again, this is not typical.

    And yes we do publish all our reviews. Keep them coming! All we ask if you do have a rare issue is to give us a chance to make it good for you. Thanks~!

  6. 5 Star Review

    Posted by on Nov 29th 2015

    I recently purchased this Expansion Chamber not knowing what to expect and OH Man was I pleasantly surprised! After installing it on my mildly modified GT5 the results were absolutely AMAZING! I port matched the exhaust flange to match my cylinder and then Installed it without shortening any of the pipes. I had a Dramatic Increase is bottom end Torque ans surprisingly I gained 4.5 mph on the top end. The chamber kicks in at around mid-range and stays to the maximum RPM! I have a ported cylinder & a 6cc head. I have a SHA 14/14 carburetor which limits my top RPM due to the air flow. If I increase the carburetor bore size to a 18mm or larger then my top speed would definitely increase too! As it is now my Top Speed is 40 miles per hour on the flats and that is fast enough for me on a 26 inch Beach Cruiser with 2.125x26 tires! I could probably increase the top speed by trimming the pipe one inch at a time. As they say "if it's not broken don't fix it" so I'll leave it be until I decide to switch to a larger carburetor!
    ...I highly recommend this Chamber over all that I've tested so far & they were quite a few. I wound up putting my Old Chambers on Builds that I've sold & kept the Best for myself. My next build will be on a 700c frame and will post the results after I install my next SBP Chamber! AGAPE`

  7. 5 Star Review

    Posted by on Jul 3rd 2015

    FINALLY! installed the expansion chamber on my bike.

    Note, I did NOT get this as a power enhancement, but simply to have a slightly flexible exhaust system. In that respect it works VERY well. In other aspects, it also works as advertised.

    Drivability, is VASTLY improved, as is the sound quality. It is quieter, and has more power.

    (Just so you know, I used to run 2 cycle motorcycles, in my past, namely Yamaha RD-400s. I do know how an expansion chamber is supposed to work.) Except for never running an RD-400 without an expansion chamber, I can say that this one works quite well!

    Would I install one on another bike? Without a doubt! Would I install the "stock" muffler? NEVER AGAIN!

    steve

  8. 5 Star Review

    Posted by on Apr 29th 2015

    this pipe is awsome,great power increase,looks and sounds great aswell.The crew at S.B.P. was very fast at getting my order on its way,I got it on the 4th day,I live in Nelson,British Columbia,Canada

  9. 3 Star Review

    Posted by on Apr 27th 2015

    I cant get the pieces between the springs to hold together i have already ripped through a silicone coupler and and now on my last two small ones. Increase in power is pretty noticable on my 20 min ride before the muffler comes loose again. Hard to stay under 20 mph. Would recommend to anyone if I could figure out whats going on.

  10. 5 Star Review

    Posted by on May 2nd 2014

    Great pipe. If you lack tools, this is the pipe for you. As for power, I didn't notice anything, but you really shouldn't with only 3hp to start with. I'm sure it adds something, but it's not really noticeable. The sound it makes is fantasic. I just wish it had a drain screw at the bottom of the belly. The oil builds up in there reducing the baffle effect, instead of dripping out like the stock pipe.

    Note: Jim is contacting William to help him with set up. These pipes produce power and Jim will get him going WFO.

Showing reviews 1-10 of 59 | Next

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