Getting ready for your first or next rally? The AZE Turbo Restrictor is one of the essential parts you’ll need before hitting the stages. Designed to meet rally regulations(CARS, ARA, NASA), this restrictor limits airflow to keep vehicles within class power limits — without forcing you to overspend on a part meant to slow you down.
At AZE, we've combined years of experience so this part can get you a precision fit, reliable performance, and fair pricing. We can adapt the restrictor to any turbo and any setup. We currently support a long list of popular turbos including Subaru TD04, VF-series (VF30/34/36/37/39/40/43/48/49), WRX 2015+, Evo 8/9/X, and a wide variety of motorsport-grade compressors.
If we haven’t made one for your turbo yet, no problem — send us your cold-side housing and we’ll model and machine a custom version.
Available sizes: 30 mm (Novice), 32 mm (Production), 33 mm (Limited/Restricted), 34 mm (Open), 36 mm, and custom diameters to suit your sanctioning body's rules.
Built in Québec and backed by our lifetime AZE warranty, these restrictors are designed to survive harsh rally conditions while keeping you compliant on race day.
Price listed is for Subaru stock-location restrictors.
Custom applications require custom pricing.