cp-e.com VS.

corksport.com

PRE-ORDER ONLY - Expected to Ship in ~May 2026 Performance, Reliability, and Sound for your build…this is the exhaust manifold for your Mazdaspeed 3. You are looking at the only performance exhaust manifold that can fit 3 different turbo flange options: Stock Mazda Flange, T3 Flange, Precision V-Band and Tial V-Band. This modular design allows you to choose your flange style and change it later without replacing the entire manifold. Cast from 304SS, there are no welded flanges or connections that are prone to cracking and each flange surface is precision machined for flatness. Whether you are stock turbo or looking for the most powerful stock flange turbo, the CST6, this manifold supported 685 Whp with ease and don’t forget the specifically designed dumptube that makes life easy for you. Power: 30-40whp gains over an XS Power V3 and faster spooling. This is the result of a well designed, high flow exhaust manifold. Power over the entire curve results in better drive ability and faster times at the track. CAD Designed: Each component is CAD designed and validated on car for fitment and performance. Three components: the manifold, flange elbow, and dumptube come together to create the most complete exhaust manifold kit available. Runner Design: The CorkSport exhaust manifold utilizes 1.59 inch inner diameter runner for superior high power flow and smooth radius bends to reduce exhaust gas velocity losses vs the sharp bends and 1.41 inch runners found on the XS Power V3 and similar tubular exhaust manifolds. Exhaust gas velocity and smooth flow are the keys to an efficient and powerful exhaust manifold design. Utilizing casting vs tubular allows us to optimize both of these critical aspects. High Flow: Through a combination of computer aided flow simulations and flow bench testing, the CorkSport Exhaust Manifold was optimized to increase peak flow capacity and thus performance. Flow bench testing at 28 inches of H2O showed an average CFM f