Turner Motorsport E46 323/328 Valved Axle-Back Exhaust

Upgrade your BMW E46 323/328 with the Turner Motorsport Valved Axle-Back Exhaust, designed for lightweight performance, adjustable sound, and aggressive styling. Turner Motorsport’s valved muffler allows drivers to switch instantly between a refined, quiet tone for daily driving and a loud, spirited exhaust note for track days or spirited drives. Crafted from T304 stainless steel with integrated 3.0" exhaust tips, this axle-back system improves exhaust flow, reduces backpressure, and enhances throttle response. Designed in-house by Turner Motorsport for perfect E46 323/328 fitment, it delivers a bold look, modern valved control, and the iconic straight-six exhaust sound the brand is known for.

Features and Design:

• Turner Motorsport in-house designed and engineered using FARO ARM laser scanning and SolidWorks 3D CAD modelling for precision BMW E46 fitment
• T304 stainless steel construction with 1.25mm wall thickness, back-purged and TIG-welded for durability
• 2.0"-3.0" mandrel-bent stainless steel tubing
• T304 stainless 12mm barbed exhaust hangers TIG-welded in OE locations for precise alignment
• Engineered for smoother flow and reduced backpressure

Kit Contents:

• Turner Motorsport Axle-Back Exhaust
• 3.0" Valved Muffler with Integrated Tips
• Sleeve Clamp for Adaptation to Factory Front Exhaust Section
• Optional Exhaust Valve Controllers

Full installation Instructions can be found in the installation tab above.