Cobra Sport MZ11 Non-Resonated Dual Exit Cat-Back Performance Exhaust
Cobra Sport non-resonated dual-exit cat-back performance exhaust for Mazda MX-5 Mk4 / ND 1.5 and 2.0 models from 2015 onwards applications listed in the compatibility table.
The MZ11 is a complete cat-back performance exhaust designed to transform both the sound and rear appearance of the MX-5 ND. Fitting from the second catalytic converter rearwards, it replaces the original centre and rear exhaust sections and converts the car to a dual-exit arrangement with outlets positioned on both sides of the rear bumper.
Manufactured in the UK from T304 stainless steel, the system uses 2.5" / 63.5 mm pipework and TIG-welded construction. The MZ11 is the non-resonated version of Cobra Sport's dual-exit system, omitting the centre silencer for a more pronounced and sporting exhaust note than the resonated MZ10 alternative.
- Product type: Dual-exit cat-back performance exhaust
- Brand: Cobra Sport
- Base Cobra Sport product code: MZ11
- Vehicle application: Mazda MX-5 Mk4 / ND 1.5 & 2.0, 2015 onwards
- Exhaust section: Second catalytic converter rearwards
- Replaces: Centre and rear exhaust sections
- Pipe diameter: 2.5" / 63.5 mm
- Material: T304 stainless steel
- Construction: TIG welded
- Configuration: Non-resonated
- Centre silencer: Not fitted
- Exit configuration: Dual exit
- Manufacture: United Kingdom
Tailpipe options:
- YTP03 – MZ11YTP03: Cobra Sport YTP03 dual-exit tailpipe configuration.
- YTP16 – MZ11YTP16: Cobra Sport YTP16 dual-exit tailpipe configuration.
- TP101&102-CF Carbon Fibre – MZ11TP101&102-CF: Pair of left- and right-handed twin 3" / 76.2 mm carbon-fibre tailpipes with inward-rolled, slash-cut and staggered outlets and 2.5" / 63.5 mm inlets, creating four visible exhaust outlets.
Exhaust configuration: The MZ11 uses a non-resonated centre section and therefore does not include the centre silencer fitted to the resonated MZ10 system.
Sound: The non-resonated configuration provides the louder and more pronounced option within Cobra Sport's MX-5 ND dual-exit cat-back range.
Fitment advice: This system replaces both the original centre and rear exhaust sections. The complete exhaust should be loosely assembled and accurately aligned before the joints are fully tightened, allowing both rear outlets to sit evenly within the corresponding openings in the rear diffuser.
Other items to consider: The Cobra Sport MZ18 dual-exit lower rear diffuser panel is required to complete the conversion and is sold separately. The standard rear bumper arrangement is not suitable for the additional exhaust outlet without the appropriate rear panel conversion.
Useful tools / consumables: Vehicle lift or securely rated axle stands, socket and spanner set, penetrating fluid, exhaust-hanger removal tool or suitable pliers, torque wrench and suitable exhaust assembly compound where required. Installation of the MZ18 rear panel requires additional bodywork tools and preparation.
Difficulty guide: Advanced / professional fitting recommended. Installation involves replacement and alignment of a multi-section cat-back exhaust together with fitting of the required dual-exit rear panel.
Why Cobra Sport? Cobra Sport manufactures its stainless-steel performance exhaust systems in the UK using T304 stainless steel and TIG-welded construction. The MZ11 combines a larger 2.5" / 63.5 mm cat-back system with a distinctive dual-exit layout and non-resonated configuration for a substantial visual and acoustic upgrade to the MX-5 ND.
What's in the box: Cobra Sport MZ11 non-resonated dual-exit cat-back exhaust with the selected tailpipe configuration, together with the relevant exhaust fittings and gaskets. The MZ18 dual-exit lower rear diffuser panel is not included and must be purchased separately.
Installation / setup notes: The system fits from the second catalytic converter rearwards. For best results, fit and align the MZ18 dual-exit rear panel and exhaust together, allowing the outlets to be positioned evenly before the exhaust joints are fully tightened.
Warranty: Cobra Sport offers a lifetime guarantee to the original purchaser on eligible car exhaust systems when registered online within 28 days of receipt, subject to its current terms and exclusions. Products not registered within 28 days are subject to a one-year manufacturing warranty. Cobra Sport states that its carbon-fibre tailpipe upgrades carry a one-year warranty.
| Make | Model | Sub Variant | Chassis / Code | Years | Power (PS) | Engine Codes | Fuel | Transmission | Notes |
|---|---|---|---|---|---|---|---|---|---|
| Mazda | MX-5 Mk4 / ND | 1.5 | ND | 2015 onwards | Varies by model year | — | Petrol | Not restricted in published application data | Non-resonated dual-exit cat-back; Cobra Sport MZ18 rear diffuser required |
| Mazda | MX-5 Mk4 / ND | 2.0 | ND | 2015 onwards | Varies by model year | — | Petrol | Not restricted in published application data | Non-resonated dual-exit cat-back; Cobra Sport MZ18 rear diffuser required |
| Reference Type | Reference |
|---|---|
| Cobra Sport Base Product Code | MZ11 |
| Variant SKU – YTP03 | MZ11YTP03 |
| Variant SKU – YTP16 | MZ11YTP16 |
| Variant SKU – Carbon Fibre | MZ11TP101&102-CF |
| Product / System Type | Non-Resonated Dual Exit Cat-Back Performance Exhaust |
| Vehicle Application | Mazda MX-5 Mk4 / ND 1.5 & 2.0 – 2015 onwards |
| Exhaust Configuration | Dual Exit / Non-Resonated Cat-Back |
| Centre Silencer | Not fitted |
| Pipe Diameter | 2.5" / 63.5 mm |
| Tailpipe Options | YTP03 / YTP16 / TP101&102-CF Carbon Fibre |
| Required Additional Part | Cobra Sport MZ18 Dual Exit Lower Rear Diffuser – sold separately |