Swift Standard Conventional Springs 11in length, 5.5 in OD, 425 lbs/in Pull Bar Springs -Gives the 135i a very

-Gives the 135i a very aggressive exhaust tone

Flat Wire Linear Rate Bump Springs 1100 lbs/in

Bump Spring Retainers 5/8" Shaft

600 lbs-1200 lbs

700 lbs/in

Swift Standard Conventional Springs 11in length, 5.5 in OD, 425 lbs/in Pull Bar Springs -Gives the 135i a very11in length, 5. 5 in OD, 425 lbs in Swift Standard Coilover Springs are made from a proprietary (H5S. TW.) Material. This allows Swift Springs to manufacture a spring that is has more stroke, increased traction and handling as well as a spring with less coils, resulting in a lighter spring with less unsprung weight. The same springs are used in Super GT, Formula Nippon, F3, F3000, Super Taikyu, IMSA, Pirelli World Challenge, Rally America, VLN, Le