10x20 Performance Fab

04/28/2026

X pipe exhaust for a square body C10. mufflers, made-in-house crossover, vbands, stainless 2.5” tube, the winners’ recipe.

Truck will be back to finish the exits once the cab and bed are mounted.

Thank you for bringing this one to me!

04/28/2026

Morning coffee dabs

04/28/2026

Modifying a drive-by-wire throttle pedal.

04/26/2026

Last call for hoodies, hats, and shirts. I will only be ordering a few extras of each, so please let me know if you would like something for yourself.

Hoodies - $50
Hats - $30
Shirts - $30

Last slide is only for in-shop customers. Not taking any orders on those 😎

03/09/2026

A more detailed walk around of the J pipe exhaust that we build for . Every one of these systems is unique and catered to the customers spec. A real world example of a functional art piece!

11/09/2025

Stainless exhaust and intake tube/box built for ‘56 Chevy. Car is sitting on a chassis, with a beautifully done LS swap sitting under the hood.

For this one we used mufflers, and incorporated an H-pipe right off the headers for that clean exhaust note everyone is looking for.

If you are looking for a custom tailored exhaust to fit your project, please give us a call or send us a message!

📞 - (509) 619-2024
📧 - [email protected]

11/09/2025

Custom exhaust for a big block Studebaker.

Car came to the current owner with open headers, which made it unbearable to drive. We added an H-pipe, and two mufflers to quiet it down. Customer was very happy with the end result.

02/14/2025

MWM Custom Automotive really knows their stuff. Best auto body and paint shop in our area! Highly recommend.

Crystal Soul Red, 46V. Such a vibrant contrast, I like the picture.

02/13/2025

Quick catch can for

02/13/2025