Completed an install of a set of Bilstein B16 coil overs and Whiteline 24mm front and rear sway bars on this pristine 2004 STi. Now for the alignment. Only 74000 miles on the clock and the mods have just begun. A rare "bird".
Adding some more fueling mods to the 2012 STi. We have temps under control now, but still need more fuel to consistently hit 30psi on pump gas, and then be prepared for e85. Setting up the double pumper now. Next step is adding an inline fuel filter. Then, more testing.
It took 18 days... but the FRS is back in action. We were able to start up the engine today and the car is ready for pick up. New 1/2" ARP head studs installed. New AVO radiator installed. New Velox shift fork installed. Might as well take care of a few other items while the engine was out.
Picked up these 2015 STi wheels from powder coating today. "Custom" STi gold has been applied. Will be mounting and balancing the rubber tomorrow morning and slapping these on the car so that the customer can take home his now Flex Fueled and customized STi.
Completed the current changes to the fueling system on this 2012 STi. We now have consistent fuel pressure when not on boost. Time to go testing and adjust the tune. Hopefully we can now finally utilize all 30psi on pump gas and move on to e85.
It is "raining" motors at the shop again. Started a fresh EJ257 up this morning. Now working on getting this EJ255 back in the car. Have an FA20 torn down and waiting to be assembled now and another EJ255 to pick out of the car still. Supposed to have another EJ257 getting dropped off this week for an engine build too. That would make 5 at one time again. Thanks to our loyal customers for keeping us busy this summer.
Seibon CW Style Carbon Fiber Hood
If you’ve got a front-mounted intercooler and don’t need a standard hood scoop, this hood is for you. It’s got two side vents to evacuate underhood heat, plus a central “reverse scoop” in place of the standard snow-shovel WRX hood scoop. These gorgeous hoods...
Cobb Pro-Tuning for Subaru Impreza WRX & STI, Legacy GT, Forester XT, Outback XT!
E-Tunes, Road tunes, and Dyno tunes available!
Great tuning, great pricing, and great customer service!
Circuit Motorsports is an Authorized Cobb dealer and Pro-Tuner. We have years of...
We are the Subaru performance experts in Michigan.
Our tech, Matt Shehan, has the experience and attention to detail that you car deserves.
Trust our experienced, friendly staff, large warehouse, and years of service experience
to help you reach all of your performance goals!
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February Tuning Sale!
We're offering $100 store credit with all professional tuning service performed in the month of February! Get the best combo deal possible when bundling parts, installs, and tuning together! Call us at 909-315-8208 or send us a PM to schedule an appointment!
2014 4th Quarter MANN that's Delicious Dyno Tuning dates are now confirmed! Spread the word! Group discounts available! Please call or email to inquire! Thank you!
10.13.2014 Update: 3 Slots available
December 5th (Fri)
Slot 1 - 9:30am - 12:30pm
Slot 2 - 2:00pm - 5:00pm
December 6th (Sat)...