THE EUROPEAN VEHICLE SPECIALIST
Unitronic is pleased to present its 2.5″ Cat-Back Exhaust System for the B8/B8.5 S4. Featuring TIG welded T304 Stainless Steel CNC mandrel bent construction, T316 stainless steel flanges, and a straight-through, free flowing design; Unitronic’s Cat-Back Exhaust Systems are designed to remove the factory exhaust restrictions to unleash the full potential of the engine.
Like all of Unitronic’s Performance Exhaust Systems, a unique v-band fastener system, using T316 Stainless Steel flanges was utilized to ensure a leak proof connection every time. This is achieved through a locking ring on all Unitronic v-band flanges to guarantee a centric alignment of the two flanges. Unitronic’s Cat-Back Exhaust System features a high density, high temperature glass fiber muffler packing, and engraved Unitronic logo. These attributes combined ensure maximum performance, while maintaining a comfortable and unobtrusive tone inside the cabin. Exiting at the rear, exhaust gasses pass through dual 3″ double walled tips and engraved with the Unitronic logo.
- Dual 2.5-inch T304 Stainless Steel Mandrel Bent Tubing:
Top quality material that will not rust and will outlast your vehicle.
- T316 Stainless Steel Flanges:
Durable, rust proof and laser cut.
- Brushed Matte Finish:
Brushed matte finish for the best possible look.
- 4-inch Corrugated Stainless Steel Flex Section:
High quality flex with interlock construction that will stay leak proof for years; allows engine movement without stressing the factory rubber mounts
- Flow-Match Transitions:
Flow-matched transitions for maximum performance and airflow.
- TIG Welded Construction:
Professionally TIG welded to ensure longevity, durability and top tier craftsmanship.
- Unique V-Band Fastening System Featuring Clampco® Clamps:
Maintain a perfect alignment of v-band flanges while ensuring a leak-proof connection every time. Fully reusable and quick to install.
- Integrated X Pipe:
Reduce unwanted sound frequency; unique exhaust tone.
- Sound Reflection:
Sound reflection chamber used to cancel drone noise and to ensure comfortable sound level in the cabin.
- Sound Absorption technology:
Perforated chamber packed with high quality and durable high temperature fiberglass wool; ensures a deep tone while absorbing unwanted frequency.
- Straight-Through, Free Flowing Muffler Design:
Optimal performance achieved by removing restriction and reducing back pressure.
- Polished 3-inch Double Walled Exhaust Tips:
Mirror polished tips engraved with the Unitronic logo.
- Unitronic Left Downpipe Section
- Unitronic Right Downpipe Section
- Unitronic Front Resonator Section
- Unitronic Mid Resonator Section
- Unitronic Left Rear Muffler
- Unitronic Right Rear Muffler
- All Necessary Hardware Included
- Stage 1
- Stage 1+
- Stage 2+
Featuring a unique v-band fastening system and engineered using the latest in 3D modeling technology, Unitronic Performance Exhaust Systems are made easy to install.
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