Arlen Ness 50-572 Big Sucker Stage I Air Filter Kit w/ Synthetic Filter - Black suspension-suspension-hardware The piston walls are treated

The piston walls are treated with a nonabrasive coating which reduces heat and friction for added horsepower and greatly extends piston life

No chalky residue

double-chrome silicone springs

Precision Made in USA for exact fit and outstanding performance

2011 Triumph Thunderbird 1700

Arlen Ness 50-572 Big Sucker Stage I Air Filter Kit w/ Synthetic Filter - Black suspension-suspension-hardware The piston walls are treatedAccepts OEM Covers. These air cleaners have received a California Executive Order (D 639 3) Feature a one piece aluminum backing plate carb support bracket. Eliminate the need for banjo fittings, hoses and filter. Breather passages exit at the mouth of the carburetor throttle body, creating a virtually closed loop system. Stage I kit includes a high flow filter and accepts 93 15 oval or round OEM outer cover (unless noted). All necessary hardware and