taco eater :
Will Pomeroy from Ann Arbor, MI United States
This is a great pipe, but it signs off around 7500 RPM. It's wonderful up until then. If you are trying to rip high RPM's, get something else.
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Fits Kinetics with a bit of a trim.
August 12, 2014
taco eater :
Maci Dub from Dubvue, WA United States
Quality construction, thicker sheet metal. Questionable fit around the center of the chamber where the four pressed pieces meet. Paint on the front section darkens nicely from heat but has not burned off yet.
Fits on a kinetic, but you loose the stand and have to chop a quarter inch off the right side of it's bracket.
Hits gradually in the mids and just keeps winding out.
Very poppy sound, but not too tinny.
The center of the chamber is directly below the engine so ground clearance can be an issue with curbs etc.
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Awesome for putting on other stuff!
April 1, 2014
taco eater :
Count Snackula from Madison, Wi United States
I ran this thing on a stock minarelli and it kicked so much ass. Great low end, solid pull through the mid range and revvvvvved to the moon! It's got that great 'ting' sound that reminds me of maybe a different simonini pipe I once had that broke. On an AMF it totally clears the pedals and stuff. Definitely my new favorite pipe to hack onto other bikes, but it's probably awesome on a Vespa too! I hope they come back in stock!
Great pipe but not as rippy as a Calibrata 
Fits Kinetics with a bit of a trim.