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01 / PROCESS

FROM FIRST PRINCIPLES TO PRODUCTION

FROM FIRST PRINCIPLES TO PRODUCTION

FROM FIRST PRINCIPLES TO PRODUCTION

Five stages. Zero shortcuts. Each phase produces data that either validates the next or sends us back. We don't ship assumptions.

01

01

01

01

COMPUTATIONAL PHASE

CFD & Structural Simulation

Before any material is touched, we run full computational fluid dynamics and finite element analysis on every design. Exhaust gas flow, thermal gradients, pressure differentials, and structural load cases are modeled to validate performance before fabrication begins. We kill bad ideas cheaply — in software, not in titanium.

Simulation Type

Simulation Type

CFD + FEA Coupled

CFD + FEA Coupled

Temperature Range Modeled

Temperature Range Modeled

Ambient → 1,100°C

Ambient → 1,100°C

Flow Analysis

Flow Analysis

Turbulent, Compressible

Turbulent, Compressible

Design Iterations

Design Iterations

12–40 per Product

12–40 per Product

02

02

02

02

MATERIAL SELECTION

Alloy Specification & Sourcing

Material grade is chosen for the specific thermal and mechanical demands of the application — not cost or availability. We specify alloy designations down to the UNS classification and verify mill certifications before stock enters our facility. Substitutions are not permitted.

Exhaust Primary

Exhaust Primary

Titanium, inconel, stainless steel (UNS R50400,uns n06625, uns s30403)

Titanium, inconel, stainless steel (UNS R50400,uns n06625, uns s30403)

forged components

forged components

2618A-T6/T61 FORGED ALUMINUM (UNS A92618)

2618A-T6/T61 FORGED ALUMINUM (UNS A92618)

Aero Components

Aero Components

Prepreg CF — 2×2 Twill

Prepreg CF — 2×2 Twill

Certification

Certification

Mill Cert. Verified Per Batch

Mill Cert. Verified Per Batch

03

03

03

03

IN-HOUSE FABRICATION

Forming, Welding & CNC

Tube shaping, mandrel bending, and CNC milling are performed in-house on calibrated machinery. Titanium joints are hand TIG-welded with full back-purging — a process that eliminates oxidation and ensures full metallurgical fusion at the weld root. Each weld is a structural element, not a seam.

Welding Method

Welding Method

GTAW (TIG) — Full Purge

GTAW (TIG) — Full Purge

Bending Process

Bending Process

CNC Mandrel

CNC Mandrel

Machining

Machining

5-Axis CNC Milling

5-Axis CNC Milling

Surface Finish

Surface Finish

Electropolished/ brushed / Bead-Blast

Electropolished/ brushed / Bead-Blast

04

04

04

04

QUALITY ASSURANCE

Dimensional & Weld Inspection

Every finished unit undergoes dimensional verification against nominal CAD to ±0.1 mm. Weld integrity is inspected visually and through dye-penetrant testing where applicable. No unit ships with a defect logged. Rework is performed on-site. No exceptions.

Dimensional Tolerance

Dimensional Tolerance

±0.1 mm

±0.1 mm

Weld Inspection

Weld Inspection

Visual + Dye-Penetrant

Visual + Dye-Penetrant

Rejection Rate

Rejection Rate

<0.8% (Rework)

<0.8% (Rework)

Measurement Tool

Measurement Tool

CMM / Digital Calipers

CMM / Digital Calipers

05

05

05

05

VALIDATION

Dyno Testing & Thermal Cycling

New designs go through hot-side thermal cycling, back-pressure measurement, and dynamometer validation before release. Wheel designs undergo hub load simulation and fatigue cycling. We don't release a product until it has proven itself past the operating limit you'll ever encounter on road or track.

Thermal Cycles

Thermal Cycles

50 Cycles (Ambient–1,000°C)

50 Cycles (Ambient–1,000°C)

Back-Pressure Delta

Back-Pressure Delta

Logged vs. OEM Baseline

Logged vs. OEM Baseline

Wheel Fatigue

Wheel Fatigue

SAE J2530 Protocol

SAE J2530 Protocol

Release Threshold

Release Threshold

3× Safety Margin

3× Safety Margin

02 / materials

WHAT WE CHOSE AND WHY.

WHAT WE CHOSE AND WHY.

WHAT WE CHOSE AND WHY.

WHAT WE CHOSE AND WHY.

Material selection isn't an aesthetic exercise. Each alloy and composite is chosen for measurable mechanical performance under the specific conditions your car creates.

titanium

aSTM B338

Commercially pure titanium is the standard for high-performance exhaust work for one reason: its strength-to-weight ratio at elevated temperature is unmatched by any steel alloy at comparable wall thickness. It runs cool, resists oxidation to 600°C, and vibrates at a frequency that produces the sharp, climbing harmonic NOX systems are known for.

UNS Designation

R50400

Tensile Strength

≥ 345 MPa

Melting Point

1,668°C

Density

4.51 g/cm³

Weld Method

GTAW / Full Back-Purge

inconel

uns n06625

INCONEL IS THE BENCHMARK FOR EXTREME-TEMPERATURE EXHAUST SYSTEMS. ITS EXCEPTIONAL STRENGTH AT HIGH HEAT ALLOWS FOR THINNER WALLS AND LOWER WEIGHT WITHOUT SACRIFICING DURABILITY. RESISTANT TO OXIDATION AND THERMAL FATIGUE, IT DELIVERS THE SHARP, FAST-RISING HARMONIC THAT DEFINES NOX.

UNS Designation

n06625

Tensile Strength

≥ 827 MPa

Melting Point

1,290–1,350°C

Density

8.44 G/CM³

Weld Method

GTAW / Full Back-Purge

stainless steel

aisi 304

HIGH-GRADE STAINLESS STEEL OFFERS THE IDEAL BALANCE OF STRENGTH, HEAT RESISTANCE, AND LONG-TERM DURABILITY. ENGINEERED WITH PRECISE WALL THICKNESSES, IT CREATES A FULL, CLEAN TONE THAT HARDENS AND CLIMBS WITH RPM—CONTROLLED, RESPONSIVE, AND DISTINCTLY NOX.

UNS Designation

S30403

Tensile Strength

≥ 485 MPa

Melting Point

1,399–1,454°C

Density

8.03 G/CM³

Weld Method

GTAW / Full Back-Purge

FORGED ALUMINUM

UNS A92618

The forging process aligns aluminum's grain structure directionally, producing a material that is fundamentally stronger than anything cast. We machine from a single forged block — no joins, no pores, no internal voids. The result is a product that is 20–30% lighter than a comparable cast unit, with fatigue life that outlasts the car it sits on.

UNS Designation

A92618 — T6/61 Temper

Yield Strength

310 MPa

Ultimate Tensile

400 MPa

Hardness

72 HRB (Brinell 115)

Process

Die Forged — 5-Axis CNC

04 / testing

THE CHART

THE CHART

THE CHART

THE CHART

Material selection isn't an aesthetic exercise. Each alloy and composite is chosen for measurable mechanical performance under the specific conditions your car creates.

0%2%4%6%8%10%12%14%5–7%10–12%
Other exhaust manufacturers
NOX Exhausts
Horsepower increase comparison · actual gains vary by vehicle and setup

INNER CIRCLE

Join our inner circle for first access to limited releases, cutting-edge product launches, and exclusive member-only offers.

INNER CIRCLE

Join our inner circle for first access to limited releases, cutting-edge product launches, and exclusive member-only offers.

INNER CIRCLE

Join our inner circle for first access to limited releases, cutting-edge product launches, and exclusive member-only offers.

INNER CIRCLE

Join our inner circle for first access to limited releases, cutting-edge product launches, and exclusive member-only offers.