Integrated Engineering HoldStrong Head Studs | B9 S4 · S5 · SQ5 · RS5 F26 X4 M40i 3.0L Turbo I6 [N55] Expect nothing less than perfection

Expect nothing less than perfection right out of the box

A durable Teflon coating is applied to the bushing that keeps your sway bar operating squeak-free so you can attack the turns without annoying sounds

Dinan High Flow Drop-in Replacement Filters are a direct upgrade to your factory intake system and will instantly provide better flow to assist your engine in achieving maximum performance and efficiency

If you are planning to tune your S58

This anti-roll bar is adjustable up to 84% to 474% stiffer than the stock bar*

Integrated Engineering HoldStrong Head Studs | B9 S4 · S5 · SQ5 · RS5 F26 X4 M40i 3.0L Turbo I6 [N55] Expect nothing less than perfectionMeet your ultimate defense against head lift. iE HoldStrong Head Studs are engineered and manufactured for structural integrity to go toe to toe with the demands of high output engines. Theyre made to keep your engine together and sealed tight using a rolled thread process, chromium based H11 tool steel and aircraft grade J threads for maximum strength. Its not rocket science, but its close. Our chromium based H11 tool steel alloy is known for its use