Product Description The exhaust valves are made of 21-2N heat treated non-magnetic stainless steel Replaces OEM 18081-36 V-Twin Manufacturing Nitrate Exhaust Valve at J&P Cycles Browse all J&P Cycles deals $42.99 In Stock at J&P Cycles Price verified 2d ago Buy Now at J&P Cycles Secure checkout Easy returns or compare prices Amazon eBay Product Details Brand V-Twin Manufacturing Size OS Condition New MPN Nov-43 V-Twin Manufacturing