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 S6 4.0 TFSI C7 quattro Exhaust System
| SKU | Product Type | Tip Style | Additional Options | Notes | Pipe MM | Pipe Inches | EC Approved | Race System | Valvesonic |
|---|---|---|---|---|---|---|---|---|---|
| MILLTEK1133-A | Cat-back | Quad 100mm GT100 | Non-resonated (louder) | Recommended with Valve Delete Modules SSXAU405 to prevent ECU fault codes | 70.0 | 2.76 | X | X | X |
| MILLTEK1133-B | Cat-back | Quad 100mm GT100 | Non-resonated (louder) with Cerakote Black Tips | Recommended with Valve Delete Modules SSXAU405 to prevent ECU fault codes | 70.0 | 2.76 | X | X | X |
| MILLTEK1133-C | Cat-back | Quad 100mm GT100 | Non-resonated (louder) with Cerakote Black tips – Quad 100mm GT100 | Some 2016 and later models have an updated valve location on one rear silencer meaning the wiring loom needs extending to accommodate. | 70.0 | 2.76 | X | X | Y |
| MILLTEK1133-D | Cat-back | Quad 100mm GT100 | Non-resonated (louder) with Polished tips | Some 2016 and later models have an updated valve location on one rear silencer meaning the wiring loom needs extending to accommodate. | 70.0 | 2.76 | X | X | Y |
| MILLTEK1133-E | Cat-back | Quad 100mm GT100 | Non-resonated (louder) with Titanium tips | Some 2016 and later models have an updated valve location on one rear silencer meaning the wiring loom needs extending to accommodate. | 70.0 | 2.76 | X | X | Y |
| MILLTEK1133-F | Cat-back | Quad 100mm GT100 | Resonated (quieter) with Cerakote Black tips (with Valve Delete Modules) | Recommend with Valve Delete Modules SSXAU405 to prevent ECU fault codes | 70.0 | 2.76 | Y | X | X |
| MILLTEK1133-G | Cat-back | Quad 100mm GT100 | Resonated (quieter) with Cerakote Black tips | Some 2016 and later models have an updated valve location on one rear silencer meaning the wiring loom needs extending to accommodate. | 70.0 | 2.76 | X | X | Y |
| MILLTEK1133-H | Cat-back | Quad 100mm GT100 | Resonated (quieter) with Polished tips | Recommended with Valve Delete Modules SSXAU405 to prevent ECU fault codes | 70.0 | 2.76 | Y | X | X |
| MILLTEK1133-I | Cat-back | Quad 100mm GT100 | Resonated (quieter) with Polished tips – Quad 100m GT100 | Some 2016 and later models have an updated valve location on one rear silencer meaning the wiring loom needs extending to accommodate. | 70.0 | 2.76 | X | X | Y |
| MILLTEK1133-J | Cat-back | Quad 100mm GT100 | Resonated (quieter) with Titanium tips | Recommended with Valve Delete Modules SSXAU405 to prevent ECU fault codes | 70.0 | 2.76 | Y | X | X |
| MILLTEK1133-K | Cat-back | Quad 100mm GT100 | Resonated (quieter) with Titanium tips – Quad 100m GT100 | Some 2016 and later models have an updated valve location on one rear silencer meaning the wiring loom needs extending to accommodate. | 70.0 | 2.76 | X | X | Y |
| MILLTEK1133-L | Additional parts | Only required for fitment with non-ValveSonic Milltek cat-back systems | X | X | X | ||||
| MILLTEK1133-M | Active Valve Control | Active Valve Control System (Changes default valve behaviours override with ESP button to open on demand) | X | X | X | ||||
| MILLTEK1133-N | Large-bore Downpipes and Cat Bypass Pipes | Larger-bore 76mm Downpipes with cat bypass pipes for highly tuned cars (Milltek Sport cat-back system) | Downpipes feature ultra-durable semi-gloss black Cerakote coating. Must be fitted with the Milltek Sport cat-back system and requires a stage 2 ECU remap. (lambda cables need extending) | 76.2 | 3.0 | X | Y | X | |
| MILLTEK1133-O | Large-bore Downpipes and Cat Bypass Pipes | Larger-bore 76mm Downpipes with cat bypass pipes for highly tuned cars (OE cat-back system) | Downpipes feature ultra-durable semi-gloss black Cerakote coating. Must be fitted with the OE cat-back system and requires a stage 2 ECU remap. (lambda cables need extending) | 76.2 | 3.0 | X | Y | X | |
| MILLTEK1133-P | Large Bore Downpipes and Hi-Flow Sports Cats | Larger-bore 76mm Downpipes with 100-cell hi-flow sports catalysts for highly tuned cars (Milltek Sport cat-back system) | Downpipes feature ultra-durable semi-gloss black Cerakote coating. Must be fitted with the Milltek Sport cat-back system and requires a stage 2 ECU remap. (lambda cables need extending) | 76.2 | 3.0 | X | Y | X | |
| MILLTEK1133-Q | Large Bore Downpipes and Hi-Flow Sports Cats | Larger-bore 76mm Downpipes with 100-cell hi-flow sports catalysts for highly tuned cars (OE cat-back system) | Downpipes feature ultra-durable semi-gloss black Cerakote coating. Must be fitted with the OE cat-back system and requires a stage 2 ECU remap. (lambda cables need extending) | 76.2 | 3.0 | X | Y | X |
