FREE Wiring Harness Consultation

Don’t know what direction to go with your LSx swap? Do you have questions about compatibility, what PCM to use, DBW or DBC? Give us a call and we will help answer your questions.

WHO WE ARE

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Since 2007

MRK Motorsports was started in 2007, and quickly established its reputation as Aurora & Streetsboro, Ohio's local LSx specialists. Michael Kilroy started the shop in his garage , with no loan, no partners. Slowly, with hard work, long days, longer nights, and with great sacrifice, Mike built his own company, and continues to build his cars the same way, from the ground up. MRK Motorsports builds cars ranging from all prices. We like to research our clients projects to give them the very best quality, we do not like to slap together a project to get the in and out the door, we want a custom, but factory reliable solution. We are known for offering LSx swap harnesses and custom PCM's, if it has a LSx or you need to control a LSx you are in the right place.

WHAT WE DO

At MRK-Motorsports we specialize in GM LSx engines, transmissions and wiring harnesses. We can help you update your favorite toy with a GM LSx engine. Have a 1969 GTO with an old tired Small Block 350? Want to install a GM LSx engine but don’t know how? MRK-Motorspors can help!

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Engine overhaul

It is a long established.
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Power steering

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Oil change

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Smog check

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Tire balancing

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Fleet service

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Welding Service

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Fabrication Service

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