By insulating the intake and throttle body from the engine heat

Thanks to a slim profile

foam and clogging properties

the spring rates can be different : this is a difference in technical design due to the shape of the springs

Specifici per BMW Serie 1 F20/F21 in allestimento M-Power Facelift

Kit Super Pro Assetti ad Aria Completi serie Deluxe Alfa Romeo 4C SKU:AR-AL-04-PRO By insulating the intake andAdditional Information Product Code AR AL 04 PRO Car Brand Alfa Romeo Car Model 4C Car Year 13~18 Airsuspension Type Below we explain the diffrences between air suspension types: Basic: ride height adjustable (no control box, only pressure switch) Deluxe: ride height adjustable, come with remote (can use either pressure switch or remote to adjust the ride height) Super Professional: ride height adjustable, come withmemory function remote, (4 wheel