Every Performance Upgrade, Professionally Installed
From the first turbo build to a complete suspension overhaul, FS Autoworx in Monroe, WA, handles the full range of diesel and automotive performance upgrades.
Turbocharger Installations
More power and better spool with a properly matched turbo kit—sized for your engine, your load, and your goals.
Exhaust Systems
Free-flowing performance exhaust improves horsepower, reduces backpressure, and gives your truck or diesel the sound it deserves.
Lift Kits and Suspension
Trail-ready or street-smooth—we fit and align lift kits and suspension upgrades to keep your rig planted and predictable.
Brake Upgrades
Bigger rotors, upgraded calipers, and performance pads so your stopping power keeps pace with your added output.
Lighting
LED light bars, fog lights, and underbody lighting installed clean, wired correctly, and built to last through Pacific Northwest conditions.
Suspension Upgrades
Coilovers, sway bars, and control arms dialed in for your weight, ride height, and intended use — daily drive or heavy tow.
Professional Installation Protects Your Investment
Performance parts only perform when they're installed correctly. A mismatched turbo or an improperly torqued lift kit doesn't just underperform — it creates new problems faster than the old ones. At FS Autoworx, every part we install is fitted to your specific vehicle, not approximated from a generic spec sheet.
75+ Years of Hands-On Experience
Every install is backed by over two decades of diesel and automotive work across real vehicles in real conditions.
Correct Fit, First Time
We verify compatibility before ordering parts so you never pay twice for the same job.
Warranty Awareness
We advise on how aftermarket installs may interact with your factory or extended warranty so you can make an informed decision upfront.
Tuning After Installation
Bolt-on parts without proper tuning leave power on the table. We align the system to your vehicle's actual output.
Diesel Performance Built for the Pacific Northwest
Diesel trucks in Snohomish County work differently from anywhere else. They tow boats and horse trailers up mountain grades, run logging roads in wet conditions, and cover long highway miles between job sites. We build performance upgrades around those real demands — not showroom specs.
Towing and Hauling Builds
Upgraded exhaust, intercooler, and tuning that holds power under sustained load without pushing EGTs into the danger zone.
Off-Road and Trail Rigs
Lift kits, skid plates, and suspension travel are tuned for the terrain between Monroe and the Cascades, not a smooth-road test track.
Daily-Drive Diesel Upgrades
Performance gains that improve efficiency, throttle response, and driveability on the commute without creating maintenance headaches.
We work on diesel pickups, vans, and performance vehicles from all major manufacturers. If you're planning a build or adding to one, call us at (360) 548-3491to talk through what fits your vehicle and your goals.
Ready to Start Your Build?
Call us or send a message and we'll talk through your build goals, confirm parts compatibility, and get you on the schedule. FS Autoworx is at 18970 State Route 2, Monroe, WA 98272. We're open Monday through Thursday from 8:00am to 6:00pm and Friday from 8:00am to 12:30pm.