PERFORMANCE / EST. 2026
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Install

B8 S4: install APR CI100037 open intake

Install the B8 S4 intake.

GUIDE OVERVIEW

Difficulty
Basic · 2/5
Time
2 min read; job time varies
Vehicle / platform
North American B8 S4; TL100113.
Tools
  • T25 driver
  • Clamp driver
  • Pick
Parts / supplies
  • CI100037 intake kit
STEP 01

Remove the airbox

Release the radiator-cover pins and cover. Remove the scoop’s two T25 screws. Loosen the airbox accordion-tube clamp and unclip its side hose. Lift the airbox enough to release its lower secondary-air hose, then remove the assembly.

Sources 1

STEP 02

Transfer mounts and fit

Attach the supplied small filter to the secondary-air hose. Transfer both rubber mounting posts to the APR intake. Loosen the throttle-body clamp and rotate the accordion tube clear. Lubricate the frame mounting holes, seat the APR intake, reconnect the accordion tube, and tighten both clamps. Reclip the side hose.

Sources 1

STEP 03

Finish the air path

Clamp the main filter to the APR intake. Cable-tie the secondary-air filter to the original bracket. Separate the original rubber duct from airbox and scoop; attach the scoop directly to the APR intake, with the intake lip beneath its tabs. Refit its two screws.

Sources 1

STEP 04

Restore the cover

Reset each radiator-cover pin so its center protrudes. Engage the cover with the bumper, insert the pins, and press their centers flush. Affix the supplied inspection label visibly under the hood.

Sources 1

Products in this guide

Sources / references 1
  1. APR installation instructions ↗Reviewed Oct 8, 2026

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