Lab

SEE IT IN ACTION

Real engineering data. Select a demo engine and see it as data.

Dyno Workshop

YOUR ENGINE AS DATA

Three methods of acoustic analysis. Each captures something the others cannot.

Coming Soon

FIRST PRINCIPLES + EXHAUST

The engine model plus the pipe transfer function. Same engine, different exhaust, visibly different portrait.

Dyno Workshop — Live Analysis

SIGNAL DECODED

Select an engine. Drag the RPM slider to see the acoustic signature change in real time. Try Experiment with a real recording →

Engine RPM

IDLELOWMIDHIGHREDLINE

RPM

8,500

Character

SCREAM

Fund. Freq

283Hz

Zone

HIGH

Exhaust ECG

EN-V4S-0001

The pressure pulse that makes a V4 scream differently from a twin. Every firing event. Every millisecond. Pure exhaust physics.

Read the physics →

Exhaust DNA

EN-V4S-0002

Your firing pattern is a fingerprint. No two exhausts produce the same shape. The asymmetry is the character — it is all in the gaps between pulses.

Read the analysis →

Exhaust Genome

EN-V4S-0003

Seven harmonics. Seven rays. The building blocks of everything your exhaust produces at full throttle. Watch them grow as you push toward redline.

Read the breakdown →

Read: Three ways to read an exhaust note →

Visual output

Four ways to see your exhaust note. Every output is unique to your recording. (example visual outputs below)

Exhaust ECG

Engine

Colour

Exhaust ECG — First Principles Model

V4 Engine — 90deg Configuration

4-cylinder — Firing 1·2·4·3

Analysis ID

EN-V4S-9500

104 dB @ 1m

Engine RPM

9,500

f₀ = 317 Hz

THE SOUND A MACHINE MAKES WHEN EVERYTHING IS WORKING.

SAMPLE — Your delivered file will have no watermark and will include your machine details at full print resolution

The pressure pulse that makes a V4 scream differently from a twin. Every firing event. Every millisecond. This is the exhaust physics behind the visual.

Read the physics →

Exhaust DNA

Engine

Colour

Exhaust DNA — First Principles Model

V4 Engine — 90deg Configuration

4-cylinder — Firing 1·2·4·3

Analysis ID

EN-V4S-9500

104 dB @ 1m

Engine RPM

9,500

f₀ = 317 Hz

THE SOUND A MACHINE MAKES WHEN EVERYTHING IS WORKING.

SAMPLE — Your delivered file will have no watermark and will include your machine details at full print resolution

Your firing pattern is a fingerprint. No two exhausts produce the same shape. The asymmetry is the character — it is all in the gaps between pulses.

Read the analysis →

Exhaust Genome

Engine

Colour

Exhaust Genome — Harmonic Stack

V4 Engine — 90deg Configuration

4-cylinder — Firing 1·2·4·3

Analysis ID

EN-V4S-9500

104 dB @ 1m

Engine RPM

9,500

f₀ = 317 Hz

THE SOUND A MACHINE MAKES WHEN EVERYTHING IS WORKING.

SAMPLE — Your delivered file will have no watermark and will include your machine details at full print resolution

Seven harmonics. Seven rays. The building blocks of everything your exhaust produces at full throttle. Each ray is a frequency — each length is an amplitude.

Read the breakdown →

Signature card

Your Exhaust Signature — Signature Card

YOUR ACOUSTIC IDENTITY

The Signature Card is your acoustic identity. Your name. Your machine. Your exhaust signature. Choose your visual, enter your name, and see what your card looks like.

Visual Style

Your Name

Engine

SAMPLE — Your actual Signature Card will not carry the watermark

★

Your actual Signature Card will display your machine name, engine configuration, exhaust type and full specifications — not the generic engine shown here. Every card is unique to your machine. No two are the same.

Digital Products

OWN YOUR SOUND

Engineering grade acoustic analysis. Choose your method. Choose your tier. Your machine. Your data.

How It Works

Choose your tier and select First Principles or Experiment

Select your colour — presets or custom hex on Edition tier

Click the button — the order form appears. Fill in your machine details

Stripe opens in a new tab to complete payment securely

Files delivered by email within 48 hours

First Principles orders fulfilled immediately. Experiment pre-orders fulfilled when the recording tool launches Q3 2026.

Digital Analysis Cards

Analysis

Three engineering grade acoustic portraits of your machine.

First Principles

Physics model from engine specs

$9.99 AUD

Available now

ECG Analysis Card PNG · 1050×1485px · 300 DPI

DNA Analysis Card PNG · 1050×1485px · 300 DPI

Genome Analysis Card PNG · 1050×1485px · 300 DPI

Unique Analysis ID

Select Colour

Select a colour above to continue

What is First Principles? →

Experiment

From your actual recording

$29.99 AUD

Pre-order

ECG Analysis Card PNG · 1050×1485px · 300 DPI

DNA Analysis Card PNG · 1050×1485px · 300 DPI

Genome Analysis Card PNG · 1050×1485px · 300 DPI

Calibrated SPL Measurement

Unique Analysis ID

Recording tool coming Q3 2026

Select Colour

Select a colour above to continue

What is Experiment? →

Most Popular

Portrait

Analysis cards plus the Signature Card. The complete acoustic portrait.

First Principles

Physics model from engine specs

$14.99 AUD

Available now

ECG Analysis Card PNG · 1050×1485px · 300 DPI

DNA Analysis Card PNG · 1050×1485px · 300 DPI

Genome Analysis Card PNG · 1050×1485px · 300 DPI

Signature Card PNG · 1050×1485px · 300 DPI · Gold always

Unique Analysis ID

Select Colour — Analysis Cards

Select a colour above to continue

What is First Principles? →

Experiment

From your actual recording

$34.99 AUD

Pre-order

ECG Analysis Card PNG · 1050×1485px · 300 DPI

DNA Analysis Card PNG · 1050×1485px · 300 DPI

Genome Analysis Card PNG · 1050×1485px · 300 DPI

Signature Card PNG · 1050×1485px · 300 DPI · Gold always

Calibrated SPL Measurement

Unique Analysis ID

Recording tool coming Q3 2026

Select Colour — Analysis Cards

Select a colour above to continue

What is Experiment? →

Full Edition

Edition

Everything plus a print-ready A3 Signature file. The complete set.

First Principles

Physics model from engine specs

$19.99 AUD

Available now

ECG Analysis Card PNG · 1050×1485px · 300 DPI

DNA Analysis Card PNG · 1050×1485px · 300 DPI

Genome Analysis Card PNG · 1050×1485px · 300 DPI

Signature Card PNG · 1050×1485px · 300 DPI · Gold always

A3 Signature Print PNG · 3508×4961px · 300 DPI

Unique Analysis ID

Select Colour — Analysis Cards

Background

Lines

Select a colour above to continue

What is First Principles? →

Experiment

From your actual recording

$39.99 AUD

Pre-order

ECG Analysis Card PNG · 1050×1485px · 300 DPI

DNA Analysis Card PNG · 1050×1485px · 300 DPI

Genome Analysis Card PNG · 1050×1485px · 300 DPI

Signature Card PNG · 1050×1485px · 300 DPI · Gold always

A3 Signature Print PNG · 3508×4961px · 300 DPI

Calibrated SPL Measurement

Unique Analysis ID

Recording tool coming Q3 2026

Select Colour — Analysis Cards

Background

Lines

Select a colour above to continue

What is Experiment? →

Digital Design Files

Apparel Print

True vector SVG — works for DTG, screen printing, vinyl and embroidery. Transparent background. Any colour.

First Principles

Physics model from engine specs

$29.99 AUD

Available now

Apparel Design File 3 designs — ECG, DNA and Genome · True Vector SVG · Transparent

Any colour — presets or custom hex

Unique Analysis ID

Select Print Colour

Background

Lines

Select a colour above to continue

Experiment

From your actual recording

$49.99 AUD

Pre-order

Apparel Design File 3 designs — ECG, DNA and Genome · True Vector SVG · Transparent

Any colour — presets or custom hex

Calibrated SPL Measurement

Unique Analysis ID

Recording tool coming Q3 2026

Select Print Colour

Background

Lines

Select a colour above to continue

Sticker File

True vector SVG — die-cut ready. Vinyl cutters follow mathematical paths. Required for stickers, decals and bike graphics.

First Principles

Physics model from engine specs

$24.99 AUD

Available now

Sticker File 3 designs — ECG, DNA and Genome · True Vector SVG · Die-cut ready

Any colour — presets or custom hex

Unique Analysis ID

Select Colour

Background

Lines

Select a colour above to continue

Experiment

From your actual recording

$44.99 AUD

Pre-order

Sticker File 3 designs — ECG, DNA and Genome · True Vector SVG · Die-cut ready

Any colour — presets or custom hex

Calibrated SPL Measurement

Unique Analysis ID

Recording tool coming Q3 2026

Select Colour

Background

Lines

Select a colour above to continue

Launch Edition

Launch Edition — First Principles Only

The Triptych

One A2 poster. Four visuals. Your machine's complete acoustic identity — Signature Card above, ECG, DNA and Genome below. Designed to frame.

First Principles

Physics model from engine specs

$99 AUD

Available now

A2 Triptych Poster JPEG + SVG · 4961×7016px · 300 DPI

Signature Card — Exhaust Note Gold centred above

ECG · DNA · Genome arranged below

Machine name and Analysis ID on poster

Print-ready — frame it, hang it

Select Colour — Analysis Cards

Background

Lines

Select a colour above to continue

Signature Card always in Exhaust Note Gold

Need something more?

SVG production files, bulk orders, custom formats for vinyl cutting, screen printing or embroidery — anything outside the standard tiers, get in touch.

ECG, DNA and Genome cards available in any colour — presets or custom hex on Edition tier.

SVG files for production use available on request.

Signature Card is always Exhaust Note Gold. This is fixed.

First Principles orders fulfilled immediately after payment. Experiment pre-orders charged now and fulfilled when the recording tool launches Q3 2026. Early access pricing for a limited time.

Physical Products

OWN IT IN THE REAL WORLD

Your acoustic signature printed, framed and worn. Every product is generated from the First Principles physics model of your engine. Your bike. Your sound. Your data.

How It Works

Select your products and options below

Proceed to secure payment and enter your total on the Stripe screen

After payment you are redirected to the order form

Tell us your machine details and confirm your selections

We generate your acoustic signature and fulfil your order

Each order is generated for one machine. If you have multiple machines place a separate order for each.

Apparel

First Principles Model

Tee

$69 AUD

Standard colour

Your acoustic signature

Your bike specs on sleeve

Choose your visual style

3 standard colour options

Premium custom colour

Select Size

Select Colour

Premium

Custom Tee

$89 AUD

Premium custom colour

Your acoustic signature

Your bike specs on sleeve

Choose your visual style

Custom hex colour — any colour

You pick background and lines

Select Size

Select Colour

Garment Colour

Black

Lines

Hoodie

$99 AUD

Standard colour

Your acoustic signature

Your bike specs on sleeve

Choose your visual style

3 standard colour options

Premium custom colour

Select Size

Select Colour

Premium

Custom Hoodie

$119 AUD

Premium custom colour

Your acoustic signature

Your bike specs on sleeve

Choose your visual style

Custom hex colour — any colour

You pick background and lines

Select Size

Select Colour

Garment Colour

Black

Lines

Sticker Packs

First Principles Model

Sticker Pack

$49 AUD

Standard colour

Vinyl die-cut — UV resistant

Waterproof — helmet and bike grade

Your acoustic signature

3 stickers — ECG, DNA and Genome

3 standard colour options

Premium custom colour

Select Colour

Premium

Custom Sticker Pack

$69 AUD

Premium custom colour

Vinyl die-cut — UV resistant

Waterproof — helmet and bike grade

Your acoustic signature

3 stickers — ECG, DNA and Genome

Custom hex colour — any colour

You pick background and lines

Select Colour

Background

Lines

All physical products are pre-order. Every product is generated from the First Principles physics model using your engine specifications. Experiment versions from your actual recording coming Q3–Q4 2026. Each product is unique to your machine — no two are the same.

Pre-Order

No items yet

AUD $0

Enter this total on next screen

Your Pre-Order

REVIEW AND COMPLETE

Order Summary

Total

$0 AUD

Share Your Exhaust Note Optional

Position your phone near the exhaust outlet and record ignition, a low rev, a high rev, return to idle and shutdown. 15 to 20 seconds is all we need.

Format

MP3 or M4A

Duration

15 to 20 sec

Max Size

10MB

Email your recording to aboude@exhaustnote.engineer with your full name and machine in the subject line.

Your Details

Full Name *

Email *

Your Machine

Make *

Model *

Year *

Exhaust Type *

Exhaust Brand

Delivery Address — Free shipping worldwide

Physical products only. Leave blank for digital orders.

Street Address

Suburb

State

Postcode

Country

Visual Style *

Exhaust ECG

Pressure waveform

Exhaust DNA

Radial signature

Exhaust Genome

Harmonic rays

Additional Comments — Optional

Your Pre-Order Total

$0 AUD

Enter this exact amount on the Stripe payment screen

Your order details are submitted securely. You will be redirected to Stripe to complete payment. All physical products are pre-order — estimated delivery Q3 2026.