| Business | Phone |
| Warren Engine Exchange 26176 Groesbeck Hwy, Warren 48089 | (586) 771-6888 |
| Advance Motor Rebuilders 22850 Groesbeck Hwy, Warren 48089 | (586) 771-1717 |
| Richard's Auto Parts 1981 E 8 Mile Rd, Warren 48091 | (586) 759-6200 |
| Lackey Performance Engines 25426 Ryan Rd, Warren 48091 | (586) 427-6900 |