What are the opening hours?

Monday 8am - 6pm Tuesday 8am - 6pm Wednesday 8am - 6pm Thursday 8am - 6pm Friday 8am - 6pm Saturday 11am - 3pm

Modified by KC

Modified by KC (MKC Performance)

Race cars
Parts
Tuning
Fabrication MKC has been in Business since ".
(226)

In that time, the collective skills acquired by its participating members put the competition at bay. With numerous awards and trophies providing evidence of success; MKC continues to play an important part of the automotive community in the Kansas City area and in the surrounding districts. To find out more about the company see http://mkcperformance.com

07/14/2026

Truck Tuesday!
This 2018 F-150 came in for a set of long tube American Racing Headers
We dialed in the Modified by KC calibration via HP Tuners RTD

🟥 : Baseline : 368whp/403wtq
🟦 : MKC : 396whp/414wtq

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Contact us at 913-432-8468 or [email protected] for all of your Coyote, Predator, & VooDoo performance & service needs in the Midwest.
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07/11/2026

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********** WE ARE HIRING!!! ************
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We are seeking EXPERIENCED automotive technician(s) & fabricator(s).
Candidates must be detail oriented, efficient, organized, knowledgable, honest, and CAREER-focused.
We are looking for late model HEMI, GM, LSX, LTX, Ford EcoBoost, Coyote, Subaru, Nissan, & Toyota experience is preferred, but versatile candidates with extensive experience from other automotive backgrounds will be considered.
General description :
- General service & maintenance
- Suspension installation & alignments
- Transmission & clutch replacement
- Performance parts installation
- Fabrication
- Wiring
We are an extremely busy shop, constantly growing, & ALWAYS looking for quality people to help. Modified by KC is passionate about offering the very best customer experience in the performance industry, & our quality to shine above others'.
If you are merely seeking a job, we are not the place for you. If you are looking for a rewarding CAREER in a fast paced & fun environment, look no further. MKC offers benefits & competitive wages starting at $50000, & can be as high as $88000+ depending on experience.
Benefits & discounted parts costs are included as well.
If you want to be a part of our growing team, please email resumes to : [email protected]

07/10/2026

FlexFuel Friday!!
Evo X Final Edition in for its Modified by KC FlexFuel calibration
Art Gennari Turbo 57mm turbo
Extreme Turbo Systems FMIC & piping
Injector Dynamics ID1300 injectors
Walbro Fuel Pumps 450lph fuel pump
Radium Engineering fuel rail & FPR

🟥 : MKC : 93oct : 422whp/343wtq
✅️ : MKC : E67 : 485whp/369wtq

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Contact us at 913-432-8468 or sales@mkcperformance for all of your 4G63T & 4B11T performance & service needs in the Midwest.
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06/30/2026

Turbo Tuesday!
This 30k mile SVO Mustang made its way in for a Port long block & a TKX Sport Transmissions
QA1 coilover kit
CCW Forged Wheel classics
Modified by KC turbo kit using Vibrant Performance tubing & Garrett - Advancing Motion GTX3076r turbo
Mightymouse Solutions catch can
Pimp-X EMS
Innovate Motorsports gauges

🟥 : 91oct : 18psi : 330whp/293wtq
🟦 : E76 : 25psi : 452whp/407wtq
✅️ : E76 : 30psi : 500whp/480wtq

🤳📱💻🤳📱💻🤳📱💻🤳📱💻🤳📱💻
Contact us at 913-432-8468 or [email protected] for all of your stand alone EMS needs in the Midwest.
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🌽

06/29/2026

Motor Monday!
This S197 is receiving a Level 3
UPR Products cylinder head cooling mod
Innovators West, Inc. damper
ARP main & head studs
Cometic Gasket, Inc. head gaskets

🤳📱💻🤳📱💻🤳📱💻🤳📱💻🤳📱💻
Contact Modified by KC at 913-432-8468 or [email protected] for all of your Coyote, Predator, & VooDoo performance & service needs in the Midwest.
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06/25/2026

Throwback Thursday!
The team at Suburban Rod & Custom Classics - Merriam, KS trusted us to dial in this flawless '78 Bronco with a Gen3 Coyote swap they built.
We got the Modified by KC calibration dialed in via HP Tuners
We were able to pick up an extra 41whp & 45wtq!💪

🟥 : Baseline : 341whp/315wtq
✅️ : MKC : 382whp/360wtq

🤳📱💻🤳📱💻🤳📱💻🤳📱💻🤳📱💻
Contact us at 913-432-8468 or [email protected] for all of your Coyote, Predator, & VooDoo performance & service needs in the Midwest.
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06/19/2026

Come on out and see pilot the S550 Mustang this weekend at for the Midsummer Madness

06/10/2026

Wiring Wednesday!!!
We broke down the OEM engine harness to extend the bulkhead for more clearance of the heat from the Garrett - Advancing Motion G35-1050. Cleaned up a few items with it as well.
We fitted the Injector Dynamics BPC100 in the most inconspiquous location, yet still serviceable, & easy access. Relocated the battery to the trunk, while building posts in the factory location for easy access as well.
We set up the Radium Engineering surge tank on the opposite side of the trunk to hold the 550lph Walbro Fuel Pumps all being controlled with a PnP Link ECU EMS.
Keep an eye out for the rest of this build. 💪

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Contact Modified by KC at 913-432-8468 or [email protected] for all of your custom wiring & EMS needs in the Midwest.
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06/09/2026

Tr**ny Tuesday!
This TR6060 came in for a refresh, with no complaints of any issues. Upon tear down, we found part of 6th gear laying in the bottom of the case. We performed our Stage 2 upgrade with carbon synchro's, new bearings, & bronze shift pads to get rid of the plastic units from the factory. Obviously we made sure to replace 6th gear, & its synchro sleeve as well.
This Camaro was headed for the road course, & be back in for some fuel upgrades before its next event. Stay tuned.
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Contact Modified by KC at 913-432-8468 or [email protected] for all of your Tremec Transmissions performance & service needs in the Midwest.
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06/03/2026

HEMI Hump Day!!!
This gorgeous '70 Plymouth Road Runner made its way in with a 392ci crate motor mated to a Tremec Transmissions TKX & wasn't running properly with the previous calibration. It was having some issues of excessively backfiring while decelling.
We did a baseline run, & could see it was running leaner than we'd prefer to.
We got the Modified by KC calibration dialed in via HP Tuners, & the byproduct was additional power as well.
We picked up an extra 31whp & 26wtq!💪
Vince is super pleased to get rid of the popping/backfiring while decelling, & no longer running lean

🟥 : Baseline : 416whp/448wtq
🟦 : MKC : 447whp/474wtq

🤳📱💻🤳📱💻🤳📱💻🤳📱💻🤳📱💻
Contact us at 913-432-8468 or [email protected] for all of your HEMI & Hellcat performance & service needs in the Midwest.
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Address

5900 E. Connecticut Avenue
Kansas City, MO
64120

Opening Hours

Monday	8am - 6pm
Tuesday	8am - 6pm
Wednesday	8am - 6pm
Thursday	8am - 6pm
Friday	8am - 6pm
Saturday	11am - 3pm

Telephone

+19134328468

Website

http://www.mkcperformance.com/

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