VALVE SPRING KIT RB25DE(T) R33 (TA304A-NS06A) 5017 Simple 30 minute upgrade to

Simple 30 minute upgrade to save your Titanium muffler from breaking

Nitro-Coated Rods Heavy Duty Powder Coating

part number 57-1725-RED-2) replaces 2016 Scion iM 1

In place of the 180 Technology® resonator in the rear lies a Track Edition straight section

VALVE SPRING KIT RB25DE(T) R33 (TA304A-NS06A) 5017 Simple 30 minute upgrade toHigh quality designed springs is required to transfer the exact movement of the camshaft to the valves at high engine speeds on high performance engines. The TOMEI products are always engineered with precision in mind to suit the user's needs. So with this in mind careful choices in material selection is made with surface coating and other technologies. Then the pre production products are put through an extensive testing program for checking