Experience noticeable power gains, an awesome sound, and aggressive yet discrete styling. Manufactured since 1983 in the UK from premium T304L aircraft-grade stainless steel, chosen for its superior quality and anti-magnetic properties, every system ensures ultimate performance and a sharper throttle response through features like mandrel-bent, full-flow pipework.
Milltek’s performance stainless steel exhausts offer genuine power gains, an exhilarating sound, and a significant improvement in driveability and throttle response.
Key Features & Advantages:
- Premium Material: Manufactured from anti-magnetic, non-discoloring Type T304L aircraft-grade stainless steel for superior quality throughout all pipework and silencers.
- Optimised Flow: Increased bore size and mandrel-bent, full-flow pipework ensure ultimate performance without sacrificing mid-range torque.
- Proven Expertise: Over 40 years of continuous development, with all systems designed, developed, and manufactured in the UK since 1983.
- Weight Saving: Substantial weight reduction over original equipment.
- Comprehensive Range: Systems include cat-back, GPF/OPF-back, sports cats, de-cats, and more.
Need fitting guidance for your exhaust system, call +44 (0)1789 774444 or contact us directly.
Find your next Audi S8 D5 4.0 TFSI V8 Saloon / Sedan – Standard Wheel Base (Non OPF/GPF US/ROW Models) Exhaust System
| SKU | Product Type | Tip Style | Additional Options | Notes | Pipe MM | Pipe Inches | Race System |
|---|---|---|---|---|---|---|---|
| MILLTEK1139-A | Cat-back | 115 GT | Non-Resonated (Louder) Cat Back System (Twin 80mm) with GT-115 Burnt Titanium Trims | (Does Not Require Cutting of the OE System) | 80.0 | 3.15 | X |
| MILLTEK1139-B | Cat-back | 115 GT | Non-Resonated (Louder) Cat Back System (Twin 80mm) with GT-115 Cerakote Black Trims | (Does Not Require Cutting of the OE System) | 80.0 | 3.15 | X |
| MILLTEK1139-C | Cat-back | 115 GT | Non-Resonated (Louder) Cat Back System (Twin 80mm) with GT-115 Polished Trims | (Does Not Require Cutting of the OE System) | 80.0 | 3.15 | X |
| MILLTEK1139-D | Cat-back | 115 GT | Non-Resonated (Louder) Cat Back System (Twin 80mm) with GT-115 Titanium Trims | (Does Not Require Cutting of the OE System) | 80.0 | 3.15 | X |
| MILLTEK1139-E | Cat-back | 115 JET | Non-Resonated (Louder) Cat Back System (Twin 80mm) with JET-115 Carbon Trims | (Does Not Require Cutting of the OE System) | 80.0 | 3.15 | X |
| MILLTEK1139-F | Cat-back | 115 GT | Resonated Cat Back Back System (Twin 80mm) with GT-115 Polished Trims | (Does Not Require Cutting of the OE System) – EC Approval Awaiting Testing | 80.0 | 3.15 | X |
| MILLTEK1139-G | Cat-back | 115 GT | Resonated Cat Back System (Twin 80mm) with GT-115 Burnt Titanium Trims | (Does Not Require Cutting of the OE System) – EC Approval Awaiting Testing | 80.0 | 3.15 | X |
| MILLTEK1139-H | Cat-back | 115 GT | Resonated Cat Back System (Twin 80mm) with GT-115 Cerakote Black Trims | (Does Not Require Cutting of the OE System) – EC Approval Awaiting Testing | 80.0 | 3.15 | X |
| MILLTEK1139-I | Cat-back | 115 GT | Resonated Cat Back System (Twin 80mm) with GT-115 Titanium Trims | (Does Not Require Cutting of the OE System) – EC Approval Awaiting Testing | 80.0 | 3.15 | X |
| MILLTEK1139-J | Cat-back | 115 JET | Resonated Cat Back System (Twin 80mm) with JET-115 Carbon Trims | (Does Not Require Cutting of the OE System) – EC Approval Awaiting Testing | 80.0 | 3.15 | X |
| MILLTEK1139-K | Large-bore Downpipes and Cat Bypass Pipes | Fits to Milltek Sport Cat Back System – Requires Stage 2 ECU Software | 80.0 | 3.15 | Y | ||
| MILLTEK1139-L | Large-bore Downpipes and Cat Bypass Pipes | Fits to OE Catback Back System – Requires Stage 2 ECU Software | 80.0 | 3.15 | Y | ||
| MILLTEK1139-M | Large Bore Downpipes and Hi-Flow Sports Cats | Fits to Milltek Sport Catback Back System – Requires Stage 2 ECU Software | 80.0 | 3.15 | Y | ||
| MILLTEK1139-N | Large Bore Downpipes and Hi-Flow Sports Cats | Fits to OE Cat Back System – Requires Stage 2 ECU Software | 80.0 | 3.15 | Y |
