Kelford Beehive Springs / Titanium Retainers Honda K & F Series air intake Suits N/A engines and turbo

Suits N/A engines and turbo engines up to 1 bar boost

High Quality Gloss Finish

F30 / F31 / F34 (2012-2019) > 340i

4-channel oscilloscope function

Nitto 4340 153mm I-beam and H-beam connecting rods are both available for the stroker kits and come with ARP 2000 rod bolts as standard

Kelford Beehive Springs / Titanium Retainers Honda K & F Series air intake Suits N/A engines and turboHONDA K SERIES K20A2. Premium quality ovate wire Beehive valve spring set with Titanium retainers. Featuring nano peen and gold nitride surface finish process for the ultimate strength and endurance. Suits high RPM N A and high boost turbo engines. Drop in on the OEM spring base to give 88lb seated pressure. 15. 0mm maximum lift.