Welcome To

Performance Plus

The Leading Edge

Click on Flyer For More Info

See me in Booth 5410 at the Indianapolis Convention Center Performance Racing Industry Trade Show.

About Us

Hello Partner,

I’m Martin Wimberly, you may recognize the name due to my past employer I worked for the past 33 years. I was the Auto Aftermarket National Sales Manager for the Salem, Il based Abrasive company. On December 19, my job was eliminated but no fault of my own and after 33 years I’m searching for a new path in life. I’m currently developing my own product supply program now for myself. I strive to offer the best tech support in the industry with Conventional and Super Abrasive Grinding Wheel & CBN/PCD product applications. I take great pride in not only improving all the products I offer, but I want people to know I’m here for them any time they need support.

I own and operate an automotive machine shop just like all of you. I started my shop Performance Plus in 1989, and like many of you, I have added machines through the years to improve my services.

On a personal note, my family interests are camping, fishing, and being heavily involved in the car scene attending many events every year such as races, car cruises and major Mopar Shows around the country.


Our Services include and are not limited to

  • CBN Flywheel Products

  • CBN Rod & Main Cap Grinding

  • CBN/PCD Milling Inserts & Re-Sharpening

  • Crankshaft & Camshaft Wheels (Coming Soon)

  • Boring Bar Laps

  • Diamond Ring Filers

  • Diamond Tipped Insert Re-Sharpening

  • Milling Insert Re-Sharpening

  • Shop Supplies

  • Surface Grinding Segments

  • Valve Refacers ( Coming Soon)

  • Mira Cutter Re-sharpening

  • Valve Seat Profile Cutter Re-Sharpening

  • Machine Shop Service





  • Complete Head Rebuilding

  • Head/Block/Flywheel Surfacing

  • Connecting Rod & Piston Work

  • Engine Block Boring & Honing

  • Pressure Testing

Flywheel Master and Rod & Main Cap

Super-Abrasive Grinding Products

How To Find Us

Call Now