![Integrated Engineering Valve Spring & Titanium Retainer Kit | B5 S4 · C5 A6 | 2.7L Turbo V6 E71 X6 35i 3.0L Turbo I6 [N54] Hand TIG welded and pressure](https://cdn.shopify.com/s/files/1/0635/0032/1015/files/IntegratedEngineeringValveSpring_TitaniumRetainerKitB5S4_C5A62.7LTurboV6.png?v=1685391187)
Pay in 4 interest-free payments of $128.00 Learn more
Ships within 48 hours · Estimated delivery Aug 28 - Sep 2
Hand TIG welded and pressure tested in USA
the car is so quiet that it’s possible to forget your driving an S powered chassis altogether
each has an APR logo engraved on the face
Includes Apple and Android Mobile Flashing app
the restricted location behind A/C condenser
Integrated Engineering Valve Spring & Titanium Retainer Kit | B5 S4 · C5 A6 | 2.7L Turbo V6 E71 X6 35i 3.0L Turbo I6 [N54] Hand TIG welded and pressureThis high quality IE valve spring and titanium retainer kit features spring rates optimized to match your vehicle specifications and provide proper valve control preventing valve float in high power and high revving applications. Increasing your engines power output often comes with modifications that require more RPMs to get the most out of it, such as larger turbochargers, tuned intake manifolds, and high output software tunes. Upgrading those
