These are a set of 200 cell motorsport catalysts by Velcoity AP. These catalytic converters provide a very noticable bump in BHP and torque. Constructed entirely from austenitic 304-grade stainless steel, these catalysts give optimum level of sound under hard acceleration, but remain quiet and unobtrusive at lower RPMs. They provide a better sound Smooth V8 burble at lower RPMs, with a more aggressive sound under load. They are 4.4 pounds lighter in weight compared to the OE 600 cell catalysts and are a direct Bolt on fit. They provide a much smoother torque curve and sharper throttle response.

I am selling this set for I have ended up with an entirely other set from my wife as a surprise gift for Christmas, secretly I may have already pulled the plug and purchased a set myself about a month prior without her knowing . I couldnt be more satisfied with the way these performance on the car but I certainly have no use for an entirely new set. So Ive decided to let them go.

Feel free to PM me any questions you may have.