{"product_id":"blow-off-valve-diverter-for-audi-a4-2005-2019-2-0l","title":"Blow off Valve Diverter for Audi A4 (2005-2019) 2.0L","description":"\u003ch2\u003eDirect-Fit Blow-Off Diverter Valve Upgrade for 2005-2019 Audi A4\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The Blow off Valve Diverter for Audi A4 replaces the leak-prone factory diverter assembly on 2005-2019 models to maintain peak boost pressure and accelerate turbo spool recovery between shifts.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock Audi A4 Diaphragm and Solenoid Failure\u003c\/h3\u003e\n\u003cp\u003eFactory diverter valves across the \u003cstrong\u003eB7\u003c\/strong\u003e, \u003cstrong\u003eB8\u003c\/strong\u003e, and \u003cstrong\u003eB9\u003c\/strong\u003e generations frequently suffer from mechanical degradation under elevated boost and thermal cycles. Original equipment rubber diaphragms are notorious for tearing, causing insidious boost leaks, erratic idle, and sluggish throttle response. Even later OEM revision piston valves suffer from spring fatigue and blow-by past the plastic housing under higher manifold pressures, bleeding charge air back into the intake tract before it reaches the combustion chamber.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis upgraded diverter assembly solves pressure leakage using a CNC-machined, black anodized billet aluminum body fitted with a precision internal brass piston and matched return spring. Designed as a sandwich-style bolt-on that integrates directly between the factory solenoid coil and the compressor cover, it preserves electronic actuation while mechanically securing boost holding. High-temperature Viton O-rings ensure an airtight seal against the turbocharger housing, eliminating boost flutter and venting cleanly to the atmosphere for distinct acoustic feedback without triggering ECU torque intervention.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable width=\"100%\" style=\"border-collapse: collapse; border: 1px solid #e0e0e0; font-size: 14px; margin-bottom: 20px;\"\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eFitment\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2005-2019 Audi A4\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eEngine \/ Chassis\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e2.0T EA113 \/ EA888 (Gen 1\/2\/3) \/ B7, B8, B9\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eStock Output\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003e200-252 hp \/ 207-273 lb-ft\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003cth style=\"padding:10px; text-align: left; border: 1px solid #e0e0e0;\"\u003eReplaces OEM Part #\u003c\/th\u003e\n\u003ctd style=\"padding:10px; border: 1px solid #e0e0e0;\"\u003eT9451 \/ BOV113\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2005-2008 Audi A4 2.0T (B7 Platform, EA113 Engine)\u003c\/li\u003e\n  \u003cli\u003e2009-2016 Audi A4 2.0T (B8 \/ B8.5 Platform, EA888 Gen 2 Engine)\u003c\/li\u003e\n  \u003cli\u003e2017-2019 Audi A4 2.0T (B9 Platform, EA888 Gen 3 Engine)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the B8 and B9 A4?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct fit for the 2005-2019 Audi A4 equipped with the 2.0T EA888 and EA113 engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this blow-off valve trigger a Check Engine Light (CEL)?\u003c\/strong\u003e\u003cbr\u003e No, because it utilizes the factory electronic solenoid base for operation, the factory ME7\/MED17\/Simos ECU retains full control over valve actuation without throwing fault codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe Audi Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to meet the exact mechanical tolerances required by German forced-induction platforms, this billet diverter kit ensures zero charge-pipe pressure loss and completely seamless integration with the factory engine management system.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50516391395576,"sku":"DS-E5C94SA02","price":69.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/blow-off-valve-diverter-for-audi-a4-2005-2019-2-0l-1.jpg?v=1789483831","url":"https:\/\/performancechiptuning.com\/fr\/products\/blow-off-valve-diverter-for-audi-a4-2005-2019-2-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}