Unitronic Cat-Back Exhaust System for 8Y S3

This valved Unitronic Cat-Back Exhaust System for the 8Y S3 equipped with the 2.0 TSI EA888 EVO4 engine features 3-inch T304 Stainless Steel mandrel bent tubing high density high temperature fiberglass wool packed muffler multiple exhaust tip options and high quality v-band fasteners with T316 Stainless Steel flanges. These attributes combined with extensive R&D testing help ensure perfect fitment and maximum performance while maintaining a comfortable and unobtrusive exhaust tone inside the cabin.

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This specific assembly includes 4'' Round Chrome Tips by default which can be replaced by 4" Round Black PVD tips (extra) as needed. Valved Exhaust System:
Retains OEM valve position and functionality. 3-inch T304 Stainless Steel Tubing:
Quality rust-free material that will outlast your vehicle.T316 Stainless Steel V-Band Flanges:
Durable rustproof and cnc machined.Direct Bolt-On Fitment:
Uses all factory exhaust hangers which do not require modifications or adjustments.TIG Welded Construction:
Professionally hand welded to ensure longevity and leak proof resistance.Unique V-Band Fastening System Featuring Clampco. Clamps:
Maintain a perfect alignment while insuring a leakproof connection every time. Fully reusable and quick to install. Straight-Through Free Flowing Muffler Design:
Optimal performance achieved by removing restriction and reducing back pressure.Universal Fitment:
Comes with an OEM sized reducer for a direct bolt-on fitment with the factory exhaust. Optional 3? adapter available for most aftermarket exhaust systems.Sound Reflection Chamber Technology:
Sound reflection chamber used to cancel unwanted sound frequency and ensure a deep tone.Sound Absorption Technology:
Perforated chamber packed with High quality and durable high temperature fiberglass wool. Assures a deep tone and unwanted frequency absorption.Chrome 4-inch Slash Cut Round Tips:
Mirror polished tips engraved with the Unitronic logo.Optional Black 4-inch Slash Cut Round Exhaust Tips:
Also engraved with the Unitronic logo these optional tips are easy to swap with their slip on design.

Unitronic 3" Mid-Pipe w/ Resonator

Unitronic 3" Rear Section w/ Muffler and Valves

Unitronic 4" Round Chrome Tips w/ Engraved Logos

Unitronic 3" V-Band Exhaust Clamps

Unitronic 3" V-Band Sealing Rings

Unitronic 3" V-Band Adapter

All Necessary Installation Hardware