
Engineering & Design
Six full-time engineers dedicated to designing exhaust systems. From sportfish to mega-yachts, sailboats to commercial and military vessels — we engineer for every classing society, engine, and sound target.
What this service includes
D'Angelo Marine works closely with marine architects and naval engineers around the world to design exhaust systems most suited to a project's requirements and specifications. We also work hand-in-hand with boatyards and shipyards during engine repairs and vessel refits.
From Lloyd's to GL and from RINA to ABS, we have had our systems classed by every society. We are continuously working on systems for MTU, Caterpillar, Cummins, Deutz, Detroit Diesel, M.A.N., Scania, Baudouin, and other marine engines — and generator brands including Northern Lights, KiloPak, Kohler, and John Deere.
Benefits
- Six full-time engineers focused on exhaust design
- 3D CAD design and visualization
- Back-pressure calculation and performance reporting
- Sound attenuation analysis
- New construction OR repower OR retrofit
- Underwater, dry stack, and water injection systems
- Generator systems — new designs and re-designs
- Soot filtration integration (SeaClean & regen)
How we work
Brief
Engine, vessel, layout, class, and acoustic requirements captured.
3D Model
System designed in 3D from engine-room layout or physical measurements.
Validation
Back-pressure calculated and reported; class submissions prepared.
Hand-off to Fab
Drawings and specifications routed to the fabrication floor, all under one roof.
Common challenges we eliminate
Spec mismatch
Designed to engine OEM and class spec from day one.
Bad fit on installation
Physical measurements or 3D scans verify before fabrication.
Excessive back-pressure
Calculated and reported up front.
Class society delays
We submit drawings ahead of fabrication.
Real builds, real installs




Four decades of marine exhaust authority
Founded 1986. Six full-time engineers. Four mobile service teams. 30,000 sq ft Fort Lauderdale facility. The builders, captains, and engineers who run the world's finest vessels call us first.
AWS-Certified Welders
Hand TIG-welded 316L & Inconel under a 1,625-gallon Argon atmosphere.
Engineered In-House
6 engineers • 3D CAD • back-pressure analysis • full class submissions.
Class-Approved
ABS · Lloyd's · DNV · RINA · ABYC — submitted, surveyed, signed off.
Worldwide Service
Caribbean · Med · Pacific Rim · Gulf — four mobile teams on call.
Recent installs & case studies

Detroit Eagle — Feadship Mega-Yacht Exhaust
Full main-engine exhaust system with turbine integration on a Feadship mega-yacht — designed, fabricated, and commissioned end-to-end.

U.S. Coast Guard — Fast Response Cutter (FRC)
Mission-critical exhaust system for the FRC platform — built to commercial / military specification standards with full traceability.

Westport 50m — Exhaust Retrofit
Captain Herb walks through a full exhaust retrofit on a 50m Westport, replacing aged components with new 316L runs and integrated insulation.
Frequently asked
Can you design for any engine?
We work continuously with MTU, Caterpillar, Cummins, Detroit Diesel, Deutz, M.A.N., Scania, Baudouin and others — plus all major marine generator brands.
Do you handle performance tuning?
Yes. We calculate back-pressure and report on system performance to confirm the system as designed or installed is properly sized.
Can you submit to any class society?
We have had systems classed by every major society: ABS, Lloyd's, DNV, RINA, GL, ABYC.
You may also need

Main Engine Exhaust Systems
Custom-fabricated stainless and Inconel exhaust systems for yachts, sportfish, mega-yachts, and ships — aircraft-quality TIG welds.

New Installations & Repowers
From clean-sheet design through sea trials. Coordinated with main-engine overhauls and repowers.

Generator Exhaust Systems
Cut noise, vibration, and discharge. Marina-compliant mufflers engineered for comfort and longevity.
Ready to engineer your next exhaust system?
Speak with our team about new installs, repowers, repairs, or SeaClean retrofits — anywhere in the world.
