F.a.S.Motorsports

In-house custom fabrication

Custom Fabrication

Precision Welded. Performance Proven.

About Fabrication

In‑house welding & custom exhaust systems

FAS Motorsports operates a full in‑house fabrication and welding department that designs, prototypes, and produces custom exhaust, catalyst, and piping systems for gasoline and diesel platforms. We handle one‑off projects, production runs, and motorsport‑grade assemblies with controlled QA.

Our approach

For forced‑induction and high‑RPM builds, we prioritize flow and thermal stability. Typical deliverables include cat‑back systems with optimized muffler cores, heat‑managed downpipes, and charge‑pipe routing that minimizes volume while maintaining laminar flow to the throttle body.

Diesel systems are engineered for continuous high EGT and vibration with reinforced hangers, expansion allowances, and optional resonators to control drone under load. All stainless assemblies are back‑purged TIG welded for interior smoothness and corrosion resistance, then leak‑checked and documented with torque specs.

Mock-up & fitment checks
In-house installation
Back-purged TIG welding
Precision fitment and finish

At‑a‑glance


Typical Lead Time
5–10 days
Weld Method
100% TIG
Material Options
304 / 316L
Joint Types
V‑band / Slip

F.a.S.MOTORSPORTS

PRECISION ENGINEERING • CUSTOM FABRICATION • PERFORMANCE TUNING

— SOUTHWEST FLORIDA'S PREMIER PERFORMANCE SHOP —
POWER
PRECISION
RELIABILITY
15+
YEARS EXPERIENCE
500+
BUILDS COMPLETED
1500+
HORSEPOWER GAINS

Top Products

Explore our most requested billet components and performance upgrades, each engineered in-house and backed by track data.

Top Services

Pair your hardware upgrades with professional installation, calibration, and security options from the F.A.S. Motorsports team.