DOUGZ exclusive TORK TWIZTER air filter is the perfect answer to the question "How do I make my scoot have the look of twin carbs without having to deal with WAYTOOMUCHCARB SYNDROME"? The shape of the TORK TWIZTER coupled with a HUGE air filter allows the motor to grab a gigantic gulp of fresh air on the intake stroke which adds up to MORE HORSEPOWER. No Rocket Science here folks….just common sense. We build these -one at a time- so if you decide you can't live without one DON'T expect it to ship the next day. (typically 4 weeks) We'll bill you when it ships.