GRAF GEARBOXES CRV BILLET REAR FINAL DRIVE Honda Civic Si 11th Gen (2022+) The R400 is known for

The R400 is known for its signature deep growl

and large CNC machined integrated barb fittings and high quality coolant hoses

High RPM normally translates into efficient scavenging of air-flow but during misfires or incomplete flame propagation

Easy installation

GRAF GEARBOXES CRV BILLET REAR FINAL DRIVE Honda Civic Si 11th Gen (2022+) The R400 is known forFITS: 8th and 9th Gen Honda Civic Si 2002 2006 Acura RSX 1st and 2nd Gen Acura TSX THIS IS A MADE TO ORDER ITEM Model: Civic Transmission: AWD Engine: K20 K24 Gearbox: K series Category: Drag Fitment: OEM AVAILABLE RATIOS FD: 2. 56 (16 41) (SKU: G08K4401) Please feel free to contact us about custom ratios.