BLEMISHED BGRS x Green SQ Pro Velocity Stacks
*COSMETIC BLEMISHED PRODUCT SOLD AS IS*Blemish example:SQ Engineering Pro Aluminum Velocity Stacks for 4AGE (16/20V) and 3SGE Beams applications. -Weber, Dell'orto, Mikuni Solex carburetor applications as well. -Designed for maximum flow. -Unique stacks to fit each application. -Smooth transition from base of stack to throttle body. -Tremendous gains with 100mm or longer stacks-Best flowing stacks on the market! Our own testing at BGRS has revealed that the length and shape of the velocity stack plays a very important role over cylinder filling at various RPM's. Stacks with poorly shaped bell mouths or incorrect taper will show a noticeable loss in torque (and horsepower) across the power band. We have found through independent testing, as well as an extremely expensive engine modeling software package, that 100mm stacks show considerable gains over the popular 70mm lengths in the mid-range and top end on stock and modified 4AG and 3SGE engines. If you have an engine that stays belo