HPS (18521-BLK) Black Silicone Post MAF Air Intake Tube for Lexus IS-F V8 5.0L by HPS at Boogaloo Festival. MPN: 18521-BLK. Hurry! Limited time offer. Offer valid only while supplies last. Lexus 08-12 IS-F V8 5.0L HPS Black 4-Ply Reinforced High Temperature Silicone Air Intake Hose Post MAF Tube replaces the stock OEM restrictive hose with high temperature reinforced silicone material. Unlike other aftermarket air intake kits, HPS post MAF silicone hoses improve air flow and reduce heat soak while keeping the stock well designed air box perform at high efficient level. Without any re-tuning, the HPS silicone post MAF air intake tube delivers dyno-proven performance gains of 4.6
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