AFE: Magnum FORCE Performance Accessories Coupling Kit: (4-1/4" x 3-1/2") ID x 2.35" L Reducer (Polyurethane) xtreme along with exceptional engineering have

along with exceptional engineering have created some of the most desired wheel designs for almost a decade now

in some cases

Serrated/Helix Design:

Who is PST

AFE: Magnum FORCE Performance Accessories Coupling Kit: (4-1/4" x 3-1/2") ID x 2.35" L Reducer (Polyurethane) xtreme along with exceptional engineering haveDETAILS: 4 1 4 & 3 1 2 ID, 2 3 8 Length 100% Polyurethane Construction for Flexibility Commonly Used on aFe POWER Intakes Allows for Expansion, Movement, and Vibration Includes Two Stainless Steel Clamps 4 1 4 to 3 1 2 Reducer: This 2 3 8 long coupling is designed to connect to tubes with a 4 1 4 and 3 1 2 diameter. Its commonly used on aFe POWER cold air intake systems, but can be used for a variety of projects. Polyurethane Construction: Its