Our T-Man Performance Oil Pressure Gauges are a great addition to your Twin Cam or M8 motor! The housing is designed for easy installation without needing to modify your heat shield. These feature a 0-100 PSI liquid filled T-Man gauge from Marshall Instruments and are available in anodized black and polished. This kit includes everything you will need for installation, including our custom made adaptor that attaches to the factory sending unit in the case. The prices are dependent on which finish you would like.