Perrin Equal Length Header 2022-2025 WRX / 2020-2025 Outback / 2020-2025 Legacy 2019-2025 Ascent

Increase HP and TQ on your Subaru with a PERRIN Equal Length Header. With larger primary and secondary tubes, you can expect 5WHP on Stage 1 cars and far more on 350+ WHP cars without sacrificing turbo response. PERRIN headers use high-quality expansion joints with thermal liners to protect them from extreme heat and stand out from others on the market. PERRIN Headers are designed to fit seamlessly under the OEM heat shield. Retaining the OEM heat shield is crucial for maintaining proper oil temperatures and ensuring constant power delivery.The PERRIN primaries and secondaries are about 14% larger than the stock header, producing smooth and balanced exhaust flow from the heads to the turbo without sacrificing bottom-end power. Testing on an aggressive Stage 1 Tuned 2022 WRX with typical bolt-ons installed adds 5-10 WHP at the upper RPMS and even more on cars pushing past 350 WHP! PERRIN Equal Length Header for 2022+ WRX features a brushed stainless steel finish. Features: •Utilizes high-quality expansion joints with thermal liners•Designed to fit under the OEM heat shield•The primaries and secondaries are 14% larger than stock•Produces a smooth and balanced exhaust flow•Produces 5-10 WHP on Stage 1 tuned cars•Features a brushed stainless steel finish•No tuning required