Meet our 5250 Performance team:

Hi, I'm Mike Wiener, and I love building, experiencing horsepower, handling and the look of our car projects.  I also have a dedicated marketing specialist to help connect us with our target market (this website) to make sure that we stay in business working with the right customers / people.

5250 Performance LLC is licensed, insured and follows all laws regarding modifications to street driven vehicles. All owners of vehicles are required to adhere to Colorado laws and notifying us if a vehicle is not in compliance prior to work being completed. 

  • My experience is in forced induction, custom fabrication (exhaust / intake) Subaru's and other turbo, NA vehicles. At 5000 feet, albeit a turbocharger or supercharger, there is more power to be found.
  • We also have extensive experience in SCCA racing, from building tube frame chassis to motors to suspension set up, track side services and racing maintenance.

Our vision at 5250 Performance is to provide Power, Handling, and Overall Performance for automotive enthusiasts (much like myself) that see driving as much more than just getting from point A to point B.

Our Full engine builds go from performance street to full tube frame SCCA race cars. We build engines that make great power and last. From full dry sump turbocharged engines, our staff takes its cues from past racing engine builders to the latest technology for reliable power tested on our AWD Mustang Dyno.

As a former HVAC technician responsible for designing complex heating and AC buildings (new and old) to meet efficiency standards, I decided that the skills I learned from that would work very nicely with the passion for building and driving high performance automobiles.  

Not everyone can see the big picture of what it takes to make reliable power while focusing on the small details that build up to the larger goals.  That is where high horsepower gains and reliability don't always make it with a shop that relies on only one vs. all factors.  I refuse to compromise to make short term gains.

  • Regarding all email conversations and respective correspondence:  All quotes from 5250performance are valid for 30 days following the date of email transmission. Agreement for products and services is valid via email or signed at drop off time of vehicle. The Warranty Period for Physical Goods purchased / installed by 5250performance is 90 days from the date of purchase plus the additional manufacturers product warranty. All owners give permission to take / post pictures of vehicle services performed at shop, and become property of 5250performance for the sole purpose of marketing efforts.
  • All messages are intended only for the recipient listed. If you are not the intended recipient you are notified that disclosing, copying, distributing or taking any action in reliance on the contents of this information is strictly prohibited.