Fosth Performance
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Small family business in Monroe Wa. Specialize in LS harnesses, engine modifications, motor swaps, full restorarions and much more.
Builds and swaps arent the only thing we offer! Just next door is our store front J2 Racing which has everypart you need.
07/30/2026
🚨 S E S S L E R
We are excited to welcome a new pilot to the seat for the Summer Showdown! Gabe Sessler will be behind of the wheel of the TCR Pro and Super Latemodel for the biggest race in the Northwest. We are looking forward to the former multi-time kart and legend car champ to take on the 5/8 in our cars.
Here are some of Gabe's comments about the big weekend. "I am looking forward to be in 2 really good cars that are capable of going and competing for the win if I do my job. Racing at Evergreen for the showdown is always exciting with the level of competition coming from around the country, and with the amount of people come out to watch the action. Looking forward to knocking off the rust and seeing what we can do."
Gabe would like to thank,
P1 Exteriors and all the guys for their support
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21’ commander ready to party
Sounds of summer, finished these 3 boats just in time for the 4th 🤙🏽
Back to back Escalades, for this one we also installed a new 6L80, Tcase, & engine harness (thanks to Marc Vetter) machine work by Fastlane Motorsports!
If you wanna pimp out your wife's ride, give us a call 🤙
The store will be closed tomorrow and Saturday (6/5 & 6/6) business as usual at the track.
05/25/2026
To those who have served, to those currently serving and to those who did not make it back home. Thank you for protecting our families.
Customer took absolutely no shortcuts on this build, crate engine, rebuilt 700r4, re geared axle, shortened driveline, new trans cooler, all new AN lines +fittings, etc. thank you Scott for trusting us 🙌🏼
05/21/2026
New clutch installation on this mustang, fixed a few miscellaneous leaks for the customer as well
Sound up for the chop
04/19/2026
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Website
Address
17239 Tye Street SE Suite D
Monroe, WA
Opening Hours
| Monday | 9am - 6pm |
| Tuesday | 9am - 6pm |
| Wednesday | 9am - 6pm |
| Thursday | 9am - 6pm |
| Friday | 9am - 6pm |
| Saturday | 9am - 6pm |