Triumph Street Twin - Increase your power by adding a K&N Air Filter

You can slightly increase your horse power by adding a K&N Air Filter - TB9016. I also like the sound when the bike is in idle. Adds a little grunt to it. You probably won't be able to notice the difference in sound on the first ride.
As far as performance goes no difference while riding, but now I can say the bike have 65HP instead of 64. :)

[@SquireSCA]

The air filter really doesn't add any power on these bikes. The airbox itself is too small and restrictive.. the new filter won't change that. It's nice to be able to wash and replace them though, so that's why I use them. We saw no real difference on the dyno with stock vs K&N or BMC.

[@LaminarSound]

Dave that was on your Speed Twin though right??? The Speed Twin has dual butterflies, vs the single butterfly on the Street Twin. Or did you test this on a Street? Not that I EXPECT a mere filter to make much difference, I just thought if it did make any difference, it would be on the Speed Twin.

[@SquireSCA]

@@LaminarSound Yeah, its in general honestly. OEMs have gotten really good at airbox and air filter design... It's hard to improve on it really, with just a filter swap. An exception would be the Sprint air filters on literbikes, you might see a 3-4hp difference on a tuned monster of a bike already making around 200hp... On the Speed Twin or a Street Twin, not so much...

[@LaminarSound]

@@SquireSCA Yeah that makes sense. Hope to see some Speed Twin vids soon Dave.......... making me wish I had gone with the Speed instead of the Street. lol but I got something to work towards at least...

[@SquireSCA]

@@LaminarSound Lots more content coming... The motor is being rebuilt this week, so I should have it back in the garage soon!

[@harpoe8074]

Nice no nonsense instructive vid 👌 Poor Bee though eh 🐝

[@SteveTwin]

Thanks lol poor bee. I've been stung by a bee twice on the bike.

[@josemariaarinoroyo8133]

Si hubieras mirado las instrucciones te habrías dado cuenta que la grasa se pone en el borde superior del labio del filtro. Has puesto la grasa donde es inútil ponerla.

[@LaminarSound]

Hey Steve, whats the grease for exactly? Is it really necessary? Ill be getting around to changing my filter this week.

[@Cuzzazbuzz]

Can’t hear the commentary?

[@SteveTwin]

Only text. I'm shy. 😜

[@nycnightrider8069]

Did you do ECU tune yet?

[@SteveTwin]

Hi NYC Night Rider. I'm planning on doing the ECU tune if I get an aftermarket exhaust. I like your cobalt blue Street Twin. Have you tuned yours?

[@nycnightrider8069]

@@SteveTwin I'm trying to get the tune, my Triumph dealer highly recommending to get it done because I have the full exhaust, X-pipe and K&N air filter. I found 2 shops that do install, waiting on their reply. Definitely will make a video Abt it soon.

[@SteveTwin]

@@nycnightrider8069 Nice upgrades!! With all those upgrades you definitely want a tune. Curious to see the improvement after the ecu. Good luck bro.

[@abel8987]

Is the sound diferent?

[@SteveTwin]

I didn't notice any different in sound after two days of riding. On the second day I can hear my bike doesn't sound the same. That's when I realize it has a little grunt when the bike is idling. When the bike is in motion it sounds the same to me.

[@simonlangmead7]

You won’t get any more power using a K&N air filter, it will just pass more dirt into the engine and will do long term damage. It’s funny how people think the engineers somehow messed up the air box design and purposely made it restrictive for any particular reason? Who knows more about that Triumph motorcycle, the engineers who designed and built it, or K&N? The engineers know exactly how much air the engine needs and gets under all running conditions. Products like K&N depend on public ignorance to sell their product. Nobody knows more about the engine than Triumph engineers. I’m a retired qualified mechanic with over 40 years experience, so I have a much better perspective on this than someone who’s not qualified and just dabbles in it. I know enough to know what I don’t know, and I don’t know squat about engineering. So I know the OEM air filter will protect the engine as much as it can be.

[@SteveTwin]

You're probably right Simon. Thanks for the info.