Actually yeah I was going to edit my post by saying that different length pipes affect bikes in different ways. I have had many exhaust. The shorter ones look great but robbed the bike of power where it needed it the most, at the bottom. That’s where I fee the difference most. At high rpm the bike is already crazy so it would be more difficult to feel the difference there. Also if you notice most sbk or Motogp bikes use the longer pipes. Shorter pipes seem to be used more in drag racing. They also seem a lot louder. The longer pipes have a more refined sound. Not as loud. But it’s all personal preference.Actually that's not true, pipes in general can only optimize a bikes power output over a very short rpm range. Longer pipes help but only on low rpm and actually take power away at higher rpm where our bikes naturally wake up anyway, besides ram air doesn't kick in till you have speed and RPM up in the higher ranges anyway so why not compliment what our bikes already have going for them? Not to mention the weight and aerodynamic penalties of having a longer pipe setup and possible ground clearance issues with some setups..You want more power down low then drop a tooth in the front and or go up a couple in the rear and it will be just fine at the cost of some top end. I like top end but really once the bike gets moving it has power for days. I just spend more time in higher rpm since that is where the bikes natural power band sits already. Here is an article from bagger but the same principal applies to sports bikes as it does to Harley's
It's a proven fact that slipons in general don't make shit for gains, it's for looks and sound so is much more of a personal preference thing vs anything else. Twobros actually does put thier pipes to test furring development on a Dyno, have you ever been to thier shop and watched them while they are making a new pipe or system? I have, the couple hp they manage to squeeze out is real all be it only a couple. Like I said and like is proven. Shorter pipes make more power at higher rpm and longer pipes help at lower rpm. Since zx10rs don't have much in way of power down low, using a longer pipe isn't going to improve much since it is a % gain type of deal anyway. In the end, unless you complement the pipe with cat delete, intake setup like velocity stacks, air filter, etv opening maps and fueling and timing maps no can is going to do shit past make more noise with a different tone. Of the 3 you mention as being great, akra is the only one I will agree with and only in certain situations. Sounds like you are parroting something you heard somewhere else as fact but have zero proof to back itTwobros, M4, low mounts, shorter systems don't make consistent power gains. They look ricey, too.
Arata, Akra, Arrow are all great. I have a Spark.
Here, I've done the homework so you don't have to. I've even given you a representation across different teams and different racing series. I wonder what the common theme is...Shorter pipes make more power at higher rpm and longer pipes help at lower rpm.....
.... Sounds like you are parroting something you heard somewhere else as fact but have zero proof to back it
EJR Racing / TheBitchNinja is one of the fastest gen5's around, and all his racing is at high speed, all at high rpm... i remember he was asked in one of his vids about why he uses the long akra (could trim some weight with a shorty exhaust) and he replied that he went faster with the longer pipe.Shorter pipes make more power at higher rpm and longer pipes help at lower rpm.
Yeah, I like it too.
BTW I believe the Brock's titanium exhaust for the Gen 5 is made by Spark, but seemingly more expensive?