Redstar's 3.5" Straight Race Exhaust replaces the factory exhaust on the 2017-2022 McLaren 720S with a valveless straight-pipe system. It is built in three steps.
Key Features
- 100% TIG welded and back purged
- OEM-spec flanges, brackets and mounts; 100% bolt-on
- Step 1 - Exhaust: Stainless steel, Inconel or titanium piping; stainless and Inconel also heat shielded
- Step 2 - Tips: Re-use the OE tips (default), or Redstar titanium slash cut, 3D printed HEX (black ceramic) or slotted/perforated straight cut tips
- Step 3 - Downpipes: Stainless steel or Inconel downpipes, HJS HD 200cpsi 130 mm or catless, with or without heat shield
Specifications
- Vehicle: McLaren 720S (2017-2022)
- Engine: 4.0L M840T twin-turbo V8
- Pipe diameter: 3.5"
- Tip connection: OEM
What’s in this system
Required - choose one: Straight Pipe Exhaust (No Valves)
720SS-35SPRequired: choose oneRedstar Stainless Steel 3.5" Straight Race Exhaust for McLaren 720S - Non-Valved

Redstar's 3.5" Straight Race Exhaust for the McLaren 720S is a straight-pipe system with no valves that replaces the factory exhaust and re-uses the original exhaust tips. It suits the 2017-2022 McLaren 720S with the 4.0-litre M840T twin-turbocharged V8. Redstar builds it with 3.5" piping in place of its standard 3" size, and notes that its 3.5" exhaust systems need matching 3.5" downpipes. Redstar lists the system as a bolt-on fit with OEM-spec flanges and brackets and mounts as on the OEM unit.
Key Features
- 100% TIG welded and back purged
- OEM-spec flanges
- All brackets and mounts as on the OEM unit
- 100% bolt-on installation
- No valves; re-uses the OE exhaust tips
Specifications
- Engine: 4.0L M840T twin-turbocharged V8
- Model years: 2017-2022
- Pipe diameter: 3.5"
- Valves: None
- Requires: Matching 3.5" downpipes
- Material: Stainless Steel
- Heat shield: Not included
720INC-35SPRequired: choose oneRedstar Inconel 3.5" Straight Race Exhaust for McLaren 720S - Non-Valved

It suits the 2017-2022 McLaren 720S with the 4.0-litre M840T twin-turbocharged V8.
Key Features
- 100% TIG welded and back purged
- OEM-spec flanges
- All brackets and mounts as on the OEM unit
- 100% bolt-on installation
- No valves; re-uses the OE exhaust tips
Specifications
- Engine: 4.0L M840T twin-turbocharged V8
- Model years: 2017-2022
- Pipe diameter: 3.5"
- Valves: None
- Requires: Matching 3.5" downpipes
- Material: Inconel
- Heat shield: Not included
720TI-35SPRequired: choose oneRedstar Titanium 3.5" Straight Race Exhaust for McLaren 720S - Non-Valved
It suits the 2017-2022 McLaren 720S with the 4.0-litre M840T twin-turbocharged V8.
Key Features
- 100% TIG welded and back purged
- OEM-spec flanges
- All brackets and mounts as on the OEM unit
- 100% bolt-on installation
- No valves; re-uses the OE exhaust tips
Specifications
- Engine: 4.0L M840T twin-turbocharged V8
- Model years: 2017-2022
- Pipe diameter: 3.5"
- Valves: None
- Requires: Matching 3.5" downpipes
- Material: Titanium
- Heat shield: Not included
720SS-35SP-HSRequired: choose oneRedstar Heat Shielded Stainless Steel 3.5" Straight Race Exhaust for McLaren 720S - Non-Valved

It suits the 2017-2022 McLaren 720S with the 4.0-litre M840T twin-turbocharged V8.
Key Features
- 100% TIG welded and back purged
- OEM-spec flanges
- All brackets and mounts as on the OEM unit
- 100% bolt-on installation
- No valves; re-uses the OE exhaust tips
Specifications
- Engine: 4.0L M840T twin-turbocharged V8
- Model years: 2017-2022
- Pipe diameter: 3.5"
- Valves: None
- Requires: Matching 3.5" downpipes
- Material: Stainless Steel
- Heat shield: Included
720INC-35SP-HSRequired: choose oneRedstar Heat Shielded Inconel 3.5" Straight Race Exhaust for McLaren 720S - Non-Valved

It suits the 2017-2022 McLaren 720S with the 4.0-litre M840T twin-turbocharged V8.
Key Features
- 100% TIG welded and back purged
- OEM-spec flanges
- All brackets and mounts as on the OEM unit
- 100% bolt-on installation
- No valves; re-uses the OE exhaust tips
Specifications
- Engine: 4.0L M840T twin-turbocharged V8
- Model years: 2017-2022
- Pipe diameter: 3.5"
- Valves: None
- Requires: Matching 3.5" downpipes
- Material: Inconel
- Heat shield: Included
Optional: Tips
720TI-TIPSOptional: choose oneRedstar Titanium Slash Cut Exhaust Tips for McLaren 720S

Redstar's titanium exhaust tips for the McLaren 720S replace the factory exhaust outlets and attach at the OEM connection. They suit the 2017-2022 McLaren 720S with the 4.0-litre M840T twin-turbocharged V8. Redstar offers the tips in several styles, so the rear of the 720S can be finished to suit.
Specifications
- Engine: 4.0L M840T twin-turbocharged V8
- Connection: OEM
- Exhaust tip style: Lambo Style
- Material: Titanium
720TI-3DTIPSOptional: choose oneRedstar Titanium 3D Printed Exhaust Tips for McLaren 720S

They suit the 2017-2022 McLaren 720S with the 4.0-litre M840T twin-turbocharged V8.
Specifications
- Engine: 4.0L M840T twin-turbocharged V8
- Connection: OEM
- Exhaust tip style: 3D Printed
- Material: Titanium
720TI-TIPS2Optional: choose oneRedstar Titanium Straight Cut Exhaust Tips for McLaren 720S

They suit the 2017-2022 McLaren 720S with the 4.0-litre M840T twin-turbocharged V8.
Specifications
- Engine: 4.0L M840T twin-turbocharged V8
- Connection: OEM
- Material: Titanium
Required - choose one: Downpipes (3.5")
720SS-DP130Required: choose oneRedstar Stainless Steel HJS HD 200CPSI 130 mm Downpipes for McLaren 720S / 750S / 765LT / Senna

Redstar downpipes for the McLaren 720S (2017-2023), 765LT (2020-2023), 750S (2024+) and Senna (2019-2020) with the M840T twin-turbo V8 replace the factory downpipes. Built with 3.5" piping in 2.0 mm wall 304 stainless steel, they are made for a significant power gain, faster turbo spool-up and better throttle response. Redstar also states they extend turbo life, reduce under-bonnet temperature and add a better tone to the exhaust.
Key Features
- 3.5" piping
- Significant power gain
- Faster spool-up and better throttle response
- Longer turbo life
- Reduced under-bonnet temperature
Specifications
- Engine: M840T twin-turbo V8
- Fitment years: 720S 2017-2023, 765LT 2020-2023, 750S 2024+, Senna 2019-2020
- Piping: 3.5"
- Wall thickness: 2.0 mm
- Material: 304 Stainless Steel
- Catalytic converter: HJS HD 200cpsi 130 mm
- Heat shield: Not included
720SS-DP130-HSRequired: choose oneRedstar Heat Shielded Stainless Steel HJS HD 200CPSI 130 mm Downpipes for McLaren 720S / 750S / 765LT / Senna

Key Features
- 3.5" piping
- Significant power gain
- Faster spool-up and better throttle response
- Longer turbo life
- Reduced under-bonnet temperature
- OE-style heat shielding with ceramic inner liner, reducing radiant heat from the exhaust pipes by up to 70-80% (per Redstar)
Specifications
- Engine: M840T twin-turbo V8
- Fitment years: 720S 2017-2023, 765LT 2020-2023, 750S 2024+, Senna 2019-2020
- Piping: 3.5"
- Wall thickness: 2.0 mm
- Material: 304 Stainless Steel
- Catalytic converter: HJS HD 200cpsi 130 mm
- Heat shield: Included
720INC-DP130Required: choose oneRedstar Inconel HJS HD 200CPSI 130 mm Downpipes for McLaren 720S / 750S / 765LT / Senna

Built with 3.5" piping in Inconel 625, they are made for a significant power gain, faster turbo spool-up and better throttle response.
Key Features
- 3.5" piping
- Significant power gain
- Faster spool-up and better throttle response
- Longer turbo life
- Reduced under-bonnet temperature
- Inconel 625 construction for high-temperature resistance, corrosion resistance and durability
Specifications
- Engine: M840T twin-turbo V8
- Fitment years: 720S 2017-2023, 765LT 2020-2023, 750S 2024+, Senna 2019-2020
- Piping: 3.5"
- Material: Inconel 625
- Catalytic converter: HJS HD 200cpsi 130 mm
- Heat shield: Not included
720INC-DP130-HSRequired: choose oneRedstar Heat Shielded Inconel HJS HD 200CPSI 130 mm Downpipes for McLaren 720S / 750S / 765LT / Senna

Key Features
- 3.5" piping
- Significant power gain
- Faster spool-up and better throttle response
- Longer turbo life
- Reduced under-bonnet temperature
Specifications
- Engine: M840T twin-turbo V8
- Fitment years: 720S 2017-2023, 765LT 2020-2023, 750S 2024+, Senna 2019-2020
- Piping: 3.5"
- Material: Inconel 625
- Catalytic converter: HJS HD 200cpsi 130 mm
- Heat shield: Included
720SS-DPCLRequired: choose oneRedstar Stainless Steel Catless Downpipes for McLaren 720S / 750S / 765LT / Senna

Key Features
- 3.5" piping
- Significant power gain
- Faster spool-up and better throttle response
- Longer turbo life
- Reduced under-bonnet temperature
Specifications
- Engine: M840T twin-turbo V8
- Fitment years: 720S 2017-2023, 765LT 2020-2023, 750S 2024+, Senna 2019-2020
- Piping: 3.5"
- Wall thickness: 2.0 mm
- Material: 304 Stainless Steel
- Catalytic converter: Catless
- Heat shield: Not included
Note For off-road and motorsport use only. This part is not designed to meet emissions or noise standards and is not for use on public roads.
720SS-DPCL-HSRequired: choose oneRedstar Heat Shielded Stainless Steel Catless Downpipes for McLaren 720S / 750S / 765LT / Senna

Key Features
- 3.5" piping
- Significant power gain
- Faster spool-up and better throttle response
- Longer turbo life
- Reduced under-bonnet temperature
Specifications
- Engine: M840T twin-turbo V8
- Fitment years: 720S 2017-2023, 765LT 2020-2023, 750S 2024+, Senna 2019-2020
- Piping: 3.5"
- Wall thickness: 2.0 mm
- Material: 304 Stainless Steel
- Catalytic converter: Catless
- Heat shield: Included
Note For off-road and motorsport use only.
720INC-DPCLRequired: choose oneRedstar Inconel Catless Downpipes for McLaren 720S / 750S / 765LT / Senna

Key Features
- 3.5" piping
- Significant power gain
- Faster spool-up and better throttle response
- Longer turbo life
- Reduced under-bonnet temperature
Specifications
- Engine: M840T twin-turbo V8
- Fitment years: 720S 2017-2023, 765LT 2020-2023, 750S 2024+, Senna 2019-2020
- Piping: 3.5"
- Material: Inconel 625
- Catalytic converter: Catless
- Heat shield: Not included
Note For off-road and motorsport use only.
720INC-DPCL-HSRequired: choose oneRedstar Heat Shielded Inconel Catless Downpipes for McLaren 720S / 750S / 765LT / Senna

Key Features
- 3.5" piping
- Significant power gain
- Faster spool-up and better throttle response
- Longer turbo life
- Reduced under-bonnet temperature
Specifications
- Engine: M840T twin-turbo V8
- Fitment years: 720S 2017-2023, 765LT 2020-2023, 750S 2024+, Senna 2019-2020
- Piping: 3.5"
- Material: Inconel 625
- Catalytic converter: Catless
- Heat shield: Included
Note For off-road and motorsport use only.
Note Redstar's 3.5" exhausts need matching 3.5" downpipes, chosen in step 3.
Note Titanium piping comes without a heat shield only.
Note Catless downpipes are for off-road and motorsport use only. They are not designed to meet emissions or noise standards and are not for use on public roads.