Review on Enhance Performance with Sierra International 18-5274 Tune Up Kit for Mercury Thunderbolt HEI V-6 (Display Package) by Scott Welch

Name: Enhance Performance with Sierra International 18-5274 Tune Up Kit for Mercury Thunderbolt HEI V-6 (Display Package)
Item: Enhance Performance with Sierra International 18-5274 Tune Up Kit for Mercury Thunderbolt HEI V-6 (Display Package)
Rating: 3

September 02, 2022

Had to reuse drain from old

So everything works except I had to reuse drain from old lid. The plastic drain they provide doesn't screw into their lid for me. Although the old one did. Hence the three stars.

Pros