ST4 ST5 Helmet Replacement Ear Soft Cups - Black (Pair) AEM H22A4 Balance Shaft Eliminator Kit:

H22A4 Balance Shaft Eliminator Kit: Click Here for Installation Instructions

Brackets hardware

All engine mounts are made of high grade billet aluminum material

With a nice toolpath

Hardware and gaskets are included

ST4 ST5 Helmet Replacement Ear Soft Cups - Black (Pair) AEM H22A4 Balance Shaft Eliminator Kit:Stilo Comfort Noise Reduction Earmuffs are the perfect replacement for ST4 ST5 series helmets. Stilo noise dampening ear muffs work to reduce the levels of driver noise by sealing the driver's ear, resulting in improved hearing feedback from Helmet communications rather than outside noise. Features: Work to reduce the levels of driver noise by sealing isolating the driver's ear Replacement Ear Cups for ST4 ST5 Series Helmets Sold as a Pair