{"product_id":"perrin-18-21-subaru-sti-cold-air-intake-red","title":"Perrin Cold Air Intake - Red Fits 2018-2021 Subaru STI","description":"\u003cp\u003eFor STI enthusiasts running the updated 2018–2021 platform, the \u003cstrong\u003ePerrin Cold Air Intake\u003c\/strong\u003e brings a perfect balance of increased performance, intoxicating sound, and precision-engineered fitment. This isn’t just another intake—it’s a carefully crafted upgrade that enhances power delivery, reduces heat soak, and sharpens the overall driving experience of the EJ257.\u003c\/p\u003e\n\n\u003cp\u003eConstructed from high-grade \u003cstrong\u003eCNC mandrel bent aluminum\u003c\/strong\u003e, Perrin’s intake tubing ensures smooth, uninterrupted airflow. Its diameter is precisely tuned to support proper mass airflow (MAF) sensor readings while eliminating the turbulence and restriction found in the factory airbox. The filter resides deep in the fender well, where it pulls in colder, denser air—significantly improving combustion efficiency under load and at high RPM.\u003c\/p\u003e\n\n\u003cp\u003eThe performance gains are noticeable: better throttle response, faster turbo spool, and a freer-breathing top end. With proper tuning, users typically see gains of 10–15 horsepower, but the real magic is in how the car responds. Turbo whistle becomes clearer, blow-off valve sounds more pronounced, and the overall feedback from the engine is more visceral. It's a driving experience that feels alive.\u003c\/p\u003e\n\n\u003cp\u003eAs with any high-performance intake system, tuning is required to correct the fuel trims and fully realize its power potential. With that dialed in, this intake forms a strong foundation for further power modifications like downpipes, intercoolers, and E85 setups. The powder-coated finish adds durability and a clean engine bay aesthetic, while the bracketry is designed to use factory mounting points for a perfect OEM+ fit.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCNC mandrel bent aluminum\u003c\/strong\u003e tubing eliminates restriction and turbulence\u003c\/li\u003e\n  \u003cli\u003eCold air placement in the fender reduces intake temps and improves consistency\u003c\/li\u003e\n  \u003cli\u003ePowder-coated finish resists heat and corrosion\u003c\/li\u003e\n  \u003cli\u003eEnhanced turbo spool sound and blow-off valve acoustics\u003c\/li\u003e\n  \u003cli\u003eRequires tuning to optimize air\/fuel ratios and performance\u003c\/li\u003e\n  \u003cli\u003eBuilt specifically for 2018–2021 EJ257-equipped WRX STI models\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePerrin\u003c\/strong\u003e has long been a staple in the Subaru performance world, delivering precision parts that reflect real-world testing and enthusiast input. This intake continues that legacy—engineered not just for dyno gains, but for a better, more engaging drive every time you press the throttle.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCARB NOTE:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis product cannot ship to the state of California as it is not CARB compliant.\u003c\/p\u003e","brand":"Perrin Performance","offers":[{"title":"Default Title","offer_id":47590816219429,"sku":"PERPSP-INT-326RD","price":315.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/7706\/4741\/products\/0ba4786cc8933f8408b36ad8e8ce2040.jpg?v=1704745005","url":"https:\/\/saikospeed.com\/products\/perrin-18-21-subaru-sti-cold-air-intake-red","provider":"Saikospeed","version":"1.0","type":"link"}