Whites Shim - 9.48mm x 1.65mm (5 Pack) crossfire DIAMETER OF INTAKE approx 19mm

DIAMETER OF INTAKE approx 19mm DIAMETER OF AIR FILTER CONNECTION approx 58mm

Brand New Twin Exhaust Pipe + Alloy Mufflers GY6 150cc BULL Style Farm Quad Dirt Bike ATV Go Kart Dune Buggy

Excellent airflow

In addition this unit offers a re-mapped timing curve which yields a noticeable increase to horsepower and torque over the stock CDI

Whites Shim - 9.48mm x 1.65mm (5 Pack) crossfire DIAMETER OF INTAKE approx 19mmConstructed using a specific heat treatment to ensure hardness for maximum durability and less wear and precision machined to match exact sizing requirements. Each size is sold individually as a pack of 5 to reduce costs when only requiring a particular size or restocking your valve shim pack. Most 250cc 4 strokes use 7. 48 mm OD shims most 400cc and up 4 strokes use 9. 48 mm OD shims and KTM models use 10 or 8. 90 mm OD shims. Heat treated ensuring