Magnus Engine Main Bolt Washers for McLaren V8 M838/M840 aFe Power or 25+ WHP gain with

or 25+ WHP gain with ECU tuning

• Supports these major OBD protocols:

Tires ship to the 48 continental United States only

All fittings are black anodized and compatible with all fuel types including E85

Fan Diameter 14"

Magnus Engine Main Bolt Washers for McLaren V8 M838/M840 aFe Power or 25+ WHP gain withMagnus Motorsports engine main bolt washer set for McLaren V8 engines are designed specifically for the OEM style main bolt configuration, ensuring proper oil sealing while maintaining correct fastener preload. Vehicle Fitment: McLaren 3. 8L & 4. 0L V8 Twin Turbo M838T: 625C, 650S, 675LT, MP4 12C, MSO 688 HS M838TE: 540C, 570S, 570GT, 600LT, 620R M840T: 720S, 750S, 765LT, Senna, Elva, Speedtail, Sabre M840TE: GT, GTS Note: Professional installation