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Akrapovic Slip-On Exhaust Triumph Street Triple / R
Akrapovic's sporty and lightweight SLIP-ON systems offer a great balance between price and performance and represent the first step in the exhaust system tuning process. The change will be also visual as our HEXAGONAL mufflers perfectly fit the exterior line of the roadster and add a clean racing image. The muffler outer sleeve is made of titanium or carbon-fiber, which gives a special hi-tech touch to our EC Type approval SLIP-ON exhaust system.
Power & Torque: the exhaust system modification with the SLIP-ON OPEN system results in a major boost in performance, delivering a massive 99.5 HP at 12010 rpm on back wheel. But the increased power isn’t available just at the top of the range; the system shows its quality already from 3500 rpm up through entire rpm range. Maximum increased power between the Akrapovic and the stock system is 3.6 HP at 11850 rpm. Besides this, the torque is substantially higher in a lower rpm area at 3000 rpm and from middle to high rpm area.
NOTE: Please check local laws before purchasing. Some modifications may be prohibited in some states.
Akrapovic Slip-On Exhaust Triumph Street Triple / R 2008-2012
Amazing cans with a couple of issues
Bear in mind this is the first time I have changed the stock cans on a motorcycle.
Install: I did it myself following the instructions that were included. I did buy a torque wrench especially for the job, and I did run into a problem where one of the bolts in the bike frame was on backwards so had to use adjustable spanners to get it loose, but that's an issue with the bike rather than the cans. It took a while but was a relatively simple process, so anyone should be able to do it.
Sound: With the baffles in the sound is similar to the original cans but with more bass - a nice low end hum. They will be civilised enough to ride on the motorway/around town without causing much issue. Without the baffles they are LOUD, I love the gurgles and pops at low RPMs that you get, but there is an issue when on motorways or any road where you have a sustained RPM (usually around 4K). They have a real droning sound that gets right inside your head and rattles your brain around. I don't know if it's the noise or the actual performance that is then affected by the lack of baffles, because I find my cornering becomes more flighty and I lose a lot of confidence in the grip of the bike, and it seems to be less tight overall. I believe it requires remapping if you run it with the baffles out, as both the noise and the performance of your machine are negatively affected. With baffles in, it seems to run much better. To take the baffles out it's actually very easy - remove the rubber cap on the bottom, remove the screw with an alan wrench, then pull out the baffles with a pair of pliers and a cloth to protect the metal. They can be a bit stiff so you may need to use a lot of force, which will bend the metal slightly. You can't do the broomstick trick that you see on youtube because the pipes are attached at the bottom.
Weight & Heat: Much lighter than originals - very nice! Also, the titanium deals with the heat like a pro - I can touch them after a ride without burning myself, pillion is happier too. The carbon end caps are even cooler to the touch.
Overall I'd say they're great cans but possibly not worth the price if you don't have access to remapping for using them without baffles. I tried running them and using earplugs but the droning is so obnoxiously loud that it took my attention away from the road and other drivers.
December 7, 2014
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Mauricio S:Well, rock solid reasons are often seen when we deal with this stuff.
I had the original slip-on on my F800GS, and the bike sounded like a sewing machine. 30 min DIY and an Akrapovic (from which the muffler was taken off) was in place. In low revs it doesn't draw too much attention, but above 4k RPM it sounds really good. So, even without the mufflers you can use the bike with no hassle from traffic agents, and instead of using the horn you rev the bike up so everybody moves out of your way. And the weight of the titanium part is 1/4th of the OEM one. I like it a lot!Feb 11, 2014