For starters and alternators strong enough for your high compression engine, choose Powermaster Performance. Powermaster PowerMax Starters are great for everyday drivers that have stock compression & timing. These starters are recommended for EFI only and for 10:1 compression. Be confident these will fit as they clear most headers and work with most oversize kickout oil pans. Get a Powermaster PowerMax Starter fast with Speedway Motors' award winning service & same-day shipping!