QA1 Shock Piston - Linear/Digressive - Twintube Style - Gray EGSR Rubber Roller

Rubber Roller

BOLT ON 10-15 HP WITH THESE BBK SHORTY TUNED LENGTH EXHAUST HEADERS FIT ALL 1999-2009 GM 6

Simply install the distributor in the engine

7/8 in Spline

QA1 Shock Piston - Linear/Digressive - Twintube Style - Gray EGSR Rubber RollerThese pistons have flat linear compression and digressive rebound with up to 0. 056" of preload to generate low speed control without excessive high speed forace, helping you maintain grip over surface irregularities. Used on both dirt and asphalt cars, these pistons can generate the force numbers you're looking for to keep the left rear up or keep the front end sealed off. The amount of shim stack preload, shim thickness, and diameter are all able to