OS Speed is a killer engine, probably the fastest stock race .21 on the market... However I feel we have the products to easily exceed the OS Speed...Not only in sheer performance, but also in lifespan,price as well after sales support...... you will not find a company out there in the engine game who takes as good of care of their customers as we do....Good luck getting any help from OS when the Speed dies out at 3 gallons (which unfortunately many do ) .......Good luck getting tuning advice from OS when the engine acts up on race weekend...... IN terms of after sales service and support we eat OS alive.....Which is why so many previous OS owners have converted to my engines..... We not only offer a faster engine at a lower price, but we also are there to backup the engine if anything goes wrong....

As for power, well obviously some out there are happy with the power of the stock engines, which is normal for any form of motorsports, however there are those like me who do not feel the stock engines are powerful enough....truth be told if all I had were stock engines I probably wouldn't bother running nitro any longer, as I would find it lame and boring....As to me none of the stock engines are very fast at all, most are actually quite slow and lazy by my standards...The only stock engine out there that even is remotely close to impressive to me is a OS 25....And even that is quite mild and tame next to my modifieds..... Ask Savage Sam how that Alpha .23 stacks up to his Clocked Bonito if you don't believe me....For me that stock .23 wouldn't be worth the fuel and time used to break it in, its way too mild for me to get any enjoyment from it...........So say what you want, but obviously there are many out there who also feel the same away as I do about my engines or we wouldn't be where we are today......