- Front and rear air suspension. Comes similar as pictured some parts change with year/model. This is the most comprehensive, highest quality air system available for HD touring models. Expert reviews and real-world tests. Easy install, better ride quality, no drilling needed. Enhance your vehicle's performance and comfort with our premium products. DIRTY AIR Basic Rear Air Suspension System $499. . Options to fit Harley touring models 2025-down. Other option allows tank with 4-valve manifold to mount to the right side fender support (for dual Options to fit Harley touring models 2024+. 99 DELIVERY SIGNATURE REQUIRED. 7p4 2ubd bfs ugylt ch5o lajb jwpiw z3r fqjbxk jgm