HFI upgrade air intake Audi A4/S4/RS4 B9, A5/S5/RS5 B9 (HGHFISV09-1M)

This HF-Series intake upgrade kit for the A4 & A5 B9 series with 1.4/2.0/2.9 and 3.0 TFSI engines is the perfect combination of optimising the intake system with an OEM look together with maximum performance. The facts at a glance: - Increased volume thanks to upgrade top cover - Air filter with 90mm funnel connection - OEM look - 100% in-house development with 3D scan and flow simulation - with dry Pipercross air filter (reusable) - flow-optimised air path - Incl. Upgrade intake hose and turbo inlet (depending on engine selection) - maximum performance and efficiency. Note for the RS models: unlike other manufacturers’ inlet kits, with ours the engine cover does NOT have to be cut. The kit fits without further adaptation work. The development was carried out entirely in-house. With elaborate 3D scans, flow simulation and tests on the dyno, the race track and the road, we managed to create the optimum in performance combined with a pleasant improvement in intake sound. Suitable for both stock vehicles and vehicles with tuned engines. On the 2.9 TFSI engine from the RS4/RS5, just by converting the intake on the standard engine (without software or other hardware changes) we measured an extra +25PS and +40NM. We achieved this result again and again on 3 different vehicles. This shows the enormous potential of our upgrade.

TÜV / ABE available upon request

We currently ship within Europe only.

If a part is not available, we will contact you with an estimated wait time.

If you wish to return a product after receiving it, we offer a 14-day returns policy. Custom-made products are not eligible for return, and return shipping is at the customer's expense. Full delivery and returns terms are on the “Delivery Information” page — the link is at the bottom of the page.

Products come with a warranty, detailed in a certificate included in the box.

To make a valid claim, you must prove the damage was not caused by you and that the warranty certificate is valid.

Full terms are on the “Terms & Conditions” page — the link is at the bottom of the page.