In Boost Performance
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Performance Specialty Shop for Subaru, Mitsubishi, Porsche, and Nissan offering turbo upgrades, fuel system support, standalone engine management, dyno tuning, and engine upgrades. We're a Certified Engine Installer for IAG Performance, and we carry parts from Cobb Tuning, IAG Performance, Extreme Turbo Systems, Radium Engineering, Injector Dynamics, Haltech ECU, AEM Electronics, AEM Intakes, and more.
01/29/2026
We are now a Valvetronic dealer! Hit us up for these awesome exhausts
10/28/2025
Another difficult built car needed emissions help. This is not some weird emissions tune result. This is perfect tuning, proper emissions equipment installed, some custom help in the form of thermal management, as well as some very cool new spark plug technology. These projects are difficult but I love a good challenge.
I am here to help keep your car on the road and keep the exhaust nice and clean!
This 2007 STi just got a new Turbo Dynamics MDX555-400, along with a Grimmspeed uppipe, Perrin turbo inlet, ID1050xds fuel injectors, and an E85 tune by TheBoostCreep Ltd. It made 394 wheel horsepower but we turned it down just a little bit before sending it on its way. This setup is so responsive and fun! Injector Dynamics injectordynamics turbodynamics
02/15/2025
Yay Flex Fuel! Hit us up if you’re ready!
COBB Flex Fuel for Subaru VB WRX is HERE! VB WRX Flex Fuel is here! COBB CAN Flex Fuel coupled with Accessport tuning is the easiest way to add over 50HP and 80TQ to your Subaru WRX!
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Website
Address
245 3rd Avenue
Longmont, CO
80501
Opening Hours
| Monday | 10am - 6pm |
| Tuesday | 10am - 6pm |
| Wednesday | 10am - 6pm |
| Thursday | 10am - 6pm |
| Friday | 10am - 6pm |
