Nitrous & Methanol Kits

Add serious, on-demand power to your turbocharged or supercharged Audi with a nitrous oxide or water/methanol injection kit built for EFI, fly-by-wire, and direct-injection engines. Every kit in this collection is a genuine fit for Audi platforms — from the B8/B8.5 S4, S5, Q5 and SQ5 3.0T to the 8V/8Y A3, S3, TT and RS3/RS4/RS6 2.0T–5.2L FSI/TFSI engines.

What's included

• Nitrous oxide kits — dry EFI single-nozzle systems, 4-cylinder direct-port kits, and Proton wet nitrous systems from Nitrous Express, sized from 1.4lb up to 15lb bottles, including fly-by-wire and E85-compatible kits.
• Water/methanol injection kits — progressive, MAP-referenced Boost Cooler kits from Snow Performance and AEM, including direct-injection-safe (DI) configurations for TFSI/FSI engines.

Carbureted, diesel-only, and non-Audi vehicle-specific kits (Ford trucks, motorcycles, Holley plenum systems, etc.) have been left out so every product here is genuinely relevant to an Audi power-adder build.

Always confirm nozzle placement, tuning, and fuel requirements with a qualified tuner before installing any power adder.