Injen SES Wrinkle Red Intercooler Charge Pipe Kit - Audi S4 / S5 (B9) 2018-2021

The Injen SES charge pipe kit replaces the restrictive factory intercooler piping on the B9 S4 and S5 3.0T with mandrel-bent 2.50 inch 6061-T6 aluminum tubing, opening a smoother path between the turbo and intercooler for quicker throttle response and less turbo lag. Both the hot and cold side pipes are included, finished in wrinkle red powdercoat with beaded tube ends, TIG-welded sensor flanges, a pre-installed 1/8 inch NPT bung, and automotive grade silicone couplers with stainless band clamps. It bolts to all factory mounting locations and works with the OE intercooler.

Specifications

Documents: Installation Instructions (PDF)

This part fits:

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy