quick view Add to Cart SPA Performance High Performance Air Filter Inbox for 1.6 THP MINI Cooper S JCW R56 R57 R58 R59 R60 MSRP: $84.00 $49.90 The SPA Performance inbox air filter offers the greatest airflow your engine needs, with the least possible restriction, combined with filtration power practically identical to the standard filter. Power gains can reach up to 5 hp (depending on the... Add to Cart Add to Wish List Add to My Wish List Create New Wish List Compare