Add to Cart Compare Quick view 817 Innovators West 6.5" Coyote Harmonic Damper Std. Dia., '11-up Innovators West MSRP: Now: $449.92 Was: SFI 18.1 6 Rib stock diameter dual accessory drive damper for 2011-up 5.0L Coyote Mustangs. IW-817 MSRP: Now: $449.92 Was: Add to Cart Compare Quick view