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Mazda MX-5 NA: the soundtrack of Jinba Ittai, the complete guide

11 min read

Mazda MX-5 NA: the soundtrack of Jinba Ittai, the complete guide

The pop-up headlight MX-5 NA is now officially a collectible classic: the icon that revived the roadster. Good examples are becoming collectible, and a quality exhaust modernises the experience while respecting the original spirit. This guide sets out, for your Mazda MX-5 NA, what each choice changes: material, front section, sound, valves and fitting.

Written by ROG Motorsport · Updated

ROG valved exhaust system for Mazda MX-5 NA

Your ROG exhaust for the Mazda MX-5 NA

From €2,405 in stainless steel, €3,005 in titanium

Configure my exhaust
Vehicles
Mazda MX-5 NA (1989-1997)
Engine
115 hp · 148 Nm
Exhaust
Valved cat-back, built for your VIN
Material
304 stainless steel or titanium
Front section
Optional: catted front section with 200 or 100 cells, or decat
Valves
ROG remote, or factory control if your vehicle has it
Lead time
20 working days from order confirmation to delivery
Warranty
3 years, parts and workmanship

The MX-5 engine: the Jinba Ittai philosophy, right down to the exhaust

Your MX-5 NA follows Jinba Ittai, the unity of horse and rider: lightness, balance and total connection. In that philosophy, the sound is part of the experience, especially with the roof down. The discreet factory exhaust lets the little four-cylinder sing under its breath: it is the favourite upgrade of the worldwide MX-5 community.

The ROG exhaust gives it its full voice: a lively, mechanical timbre, an expressive climb, and light crackles on the overrun. With the roof down, the transformation is total, and the valves keep discreet journeys possible.

What makes up the exhaust on your Mazda MX-5 NA

An exhaust system is best understood in two parts. Here is what each one does, and what ROG replaces.

How the exhaust system is laid out From left to right: the engine, the front section, then the ROG cat-back with its valved silencer and tips.Front sectionROG cat-back: the complete exhaustEngine
Valves closed: the gases pass through the silencer chambers and the car stays composed.Valves open: the gases take the direct route and the engine speaks freely.Schematic only; the actual routing depends on the vehicle.

The cat-back is the complete exhaust system

It is everything you can see under the chassis of your Mazda MX-5 NA, from the outlet of the front section to the tips: pipes, silencer, valves. This is where our research and development is focused, and it is what shapes the sound. On its own, it changes the character of the car.

The front section, where the catalytic converter sits

On your Mazda MX-5 NA, that is the part between the engine and the cat-back. It contains the factory catalytic converter: the second restriction in the exhaust, after the silencer. Replacing this part is optional: it frees up the flow, and an ECU remap is what turns that into power.

The figures for your Mazda MX-5 NA

On a modern car, an exhaust system first changes the voice, the breathing and the weight at the rear. Power, on the other hand, comes from an ECU remap.

Power

Factory115 hp
Stage 2185 hp

Torque

Factory148 Nm
Stage 2238 Nm

Published factory and Stage 2 figures.

Our exhaust systems work perfectly with or without an ECU remap. On your Mazda MX-5 NA, however, we recommend having one done at an approved tuning centre: that is what lets the engine reach its full potential.

Let's be honest: on an MX-5, nobody is looking for 100 extra horsepower, and the exhaust brings a moderate gain. What it really brings: better breathing, less weight, and a soundtrack that changes every journey. That is exactly the spirit of the car.

Configuring your exhaust, step by step

4 choices, in the same order as the product page configurator.

  1. Step 1 of 4: Material: stainless steel or titanium

    For your Mazda MX-5 NA, the exhaust costs €2,405 in stainless steel and €3,005 in titanium.

    304 stainless steel

    2 405 €

    Weight
    Baseline
    Sound
    Full and rounded

    The benchmark for high-end exhausts: tough, corrosion-proof, with a full, rounded sound. The choice of most of our customers.

    Titanium

    3 005 €

    Weight
    Around 40% lighter
    Sound
    Metallic, crystal-clear

    Around 40% lighter than stainless steel for the same design, with a more metallic sound that turns crystal-clear at high revs. Its finish ranges from brushed to blued tints.

    Over time, both hold up: 304 stainless steel stands up to winter salt and damp, and titanium does not rust. Stainless steel or titanium: what really changes.

  2. Step 2 of 4: Front section: front pipe and catalytic converter

    Optional: the front section of your Mazda MX-5 NA, with its catalytic converter. Sound intensity is rated on our scale of 0 to 10, valves open; the factory exhaust scores 3.

    Cat-back only

    Included

    7/10

    Factory emissions control

    The factory catalytic converter stays in place. The starting point and, for many of our customers, more than enough.

    200-cell sports catalytic converter

    +760 €

    8/10

    Road use and French MOT

    Emissions control is still very much there, and flow improves noticeably. The choice for everyday driving.

    100-cell sports catalytic converter

    +760 €

    9/10

    French MOT pass not guaranteed

    Half as many cells: flow comes close to a decat and the sound gains real aggression at high revs.

    Decat

    +565 €

    10/10

    Track use only

    No emissions control: maximum flow, raw sound, the sharpest revving.

    Sound intensity, on a scale of 0 to 10

    1. 10/10Decat front section + ROG cat-back
    2. 9/10100-cell sports catalytic converter + ROG cat-back
    3. 8/10200-cell sports catalytic converter + ROG cat-back
    4. 7/10ROG cat-back only, factory catalytic converter retained
    5. 3/10Factory exhaust, for comparison

    Valves open. With the valves closed, every configuration becomes discreet again.

    What about the engine warning light? A sports catalytic converter can trigger it: the oxygen sensor after the catalytic converter detects less cleaning than with the factory unit. It is not a fault. An ECU remap recalibrates the sensor, and a session with a diagnostic tool clears the fault code. With a decat, the warning light is almost certain without a remap. If it happens to you, call us and we will point you in the right direction. Passing the French MOT with a sports exhaust.

  3. Step 3 of 4: Valves: ROG remote or factory control

    Two ways to control the valves on your Mazda MX-5 NA.

    ROG remote

    ROG remote for opening and closing the valves

    A small control unit fits in the boot. Two buttons, open and closed: the valves respond at any moment, whatever the drive mode. Simple to fit, and we stay on hand throughout the installation.

    Factory control

    • Only for vehicles fitted with factory valves
    • Controlled by the drive modes

    If your vehicle is fitted with factory valves, the exhaust keeps their existing control. The drive modes decide, just as they did from the factory, with no added electronics.

    On the motorway, with the valves closed, the gases pass through the silencer, designed for cruising: no drone at a steady speed. You open up when you feel like it, not when the motorway decides for you. More about exhaust drone.

  4. Step 4 of 4: Tips: the visual signature

    Match the tips to the style of your Mazda MX-5 NA, understated or bold. A particular finish in mind? Send us a photo and we will look at it together.

    • Stainless steel
    • Black
    • Carbon
    • Blued titanium
    Exhaust tips for Mazda MX-5 NA

The ROG sound signature on the MX-5

Our exhaust gives the MX-5 its full voice: a lively, mechanical timbre, an expressive climb, and light crackles on the overrun with the valves open. With the roof down, every journey becomes a celebration of Jinba Ittai. With the valves closed, the neighbours still love you.

Valves open and valves closed: the gas path through the ROG silencer
Valves open, valves closed: the path the gases take through the silencer.

From order to fitting

  1. Configuration

    You choose your exhaust and enter your VIN, found in box E of your registration certificate.

  2. Check

    We check compatibility with your VIN before manufacturing begins.

  3. Manufacturing

    Your exhaust is made to order, for your car.

  4. Delivery

    Free in Europe, insured to your door, tracked from dispatch.

  5. Fitting

    No welding or cutting: clamps and gaskets, around two hours on a lift.

20 working days from order confirmation to delivery

Warranty
3 years, parts and workmanship, from the date of delivery
Payment
In instalments with Klarna
Installation
At the garage of your choice

What about the manufacturer's warranty on your Mazda MX-5 NA? In Europe, a manufacturer cannot refuse warranty cover simply because a part from another brand has been fitted: it has to prove that the fault comes from that part. Our article on the manufacturer's warranty.

Our recommendations for your Mazda MX-5 NA

  • Daily driving

    2 405 €

    • Stainless
    • Cat-back only
    • ROG remote

    Your Mazda MX-5 NA stays easy to live with, the factory emissions control is retained, and you open the valves whenever you choose.

    View this configuration
  • Fast road

    3 760 €

    • Titanium
    • 200-cell front section
    • ECU remap

    More sound, more breathing, and a car you can still present at the French MOT.

    View this configuration
  • Track

    3 575 €

    • Titanium
    • Decat front section
    • Stage 2

    The most extreme configuration, for track use only.

    View this configuration

And if you are still unsure, that is perfectly normal: it is exactly why we answer the phone.

Mazda MX-5 NA: your questions

How much power does an exhaust system add to the Mazda MX-5 NA?

From the factory, the Mazda MX-5 NA produces 115 hp and 148 Nm. An exhaust system on its own mainly changes the sound, the breathing and the weight; power is gained with an ECU remap. With a Stage 2 build, the published figures reach 185 hp and 238 Nm.

Stainless steel or titanium: which material for the Mazda MX-5 NA?

For the Mazda MX-5 NA, the ROG exhaust costs €2,405 in stainless steel and €3,005 in titanium. 304 stainless steel is tough, rounded in tone and the most popular choice; titanium is around 40% lighter for the same design, with a more metallic sound at high revs.

Do you need to replace the catalytic converter on the Mazda MX-5 NA?

No. On the Mazda MX-5 NA, the cat-back alone carries the valves and already transforms the sound. Replacing the front part is an option for going further: a 200-cell sports catalytic converter for the road, 100-cell or decat for more radical use, with an ECU remap to turn it into power.

Does the Mazda MX-5 NA pass the French MOT with a ROG exhaust?

With the cat-back only or the 200-cell sports catalytic converter, emissions control is retained: present the car with the valves closed. The 100-cell converter no longer guarantees a pass, and the decat fails the emissions test.

How is the ROG exhaust fitted to the Mazda MX-5 NA?

No welding or cutting, using clamps and gaskets. Allow two hours on average for a well-equipped mechanic. The exhaust is built for your VIN, which guarantees compatibility before it ships.

What does a ROG exhaust for the Mazda MX-5 NA cost, and how long does it take?

From €2,405 to €3,760 depending on the configuration. Allow 20 working days from order confirmation to delivery. Free delivery in Europe and a 3-year warranty.

Unsure about your configuration? Give us a call.

Between stainless steel and titanium, between the cat-back only and the full system, the right choice depends on how you drive and on your Mazda MX-5 NA. We take the time to talk it through before you order, with a reply within 24 hours. We are not here to sell to you over the phone: we help you choose, even if that means a cheaper option because it suits the way you drive.

RogMotorsport is a French brand built on one conviction: with an exhaust system, the support matters as much as the product. More than 500 exhaust systems fitted and a rating of 4.9 out of 5.

Further reading