{"product_id":"blow-off-valve-diverter-for-bmw-4-series-2013-2016-2-0l","title":"Blow off Valve Diverter for BMW 4 Series (2013-2016) 2.0L","description":"\u003ch2\u003eBillet Pilot-Actuated Diverter Valve Upgrade for 2013-2016 BMW 4 Series\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhat it Does:\u003c\/strong\u003e The performance diverter valve upgrade replaces the failure-prone factory plastic diverter mechanism on the 2013-2016 BMW 4 Series to eliminate boost leaks, sharpen throttle response, and ensure reliable boost retention under high manifold pressures.\u003c\/p\u003e\n\n\u003ch3\u003eThe Stock BMW 4 Series Diverter Diaphragm Failure\u003c\/h3\u003e\n\u003cp\u003eFactory turbochargers on the \u003cstrong\u003eF32\u003c\/strong\u003e, \u003cstrong\u003eF33\u003c\/strong\u003e, and \u003cstrong\u003eF36\u003c\/strong\u003e platforms rely on an original equipment diverter with a composite plastic valve body and flexible internal seals. Under repeated thermal cycling and elevated boost levels—especially on tuned vehicles—the brittle OEM plastic warps and internal sealing surfaces degrade. This structural breakdown causes the valve to crack open under peak load, leading to pressure bleeding, delayed boost spool recovery between gear shifts, and soft boost-leak codes stored in the DME.\u003c\/p\u003e\n\n\u003ch3\u003eThe Engineering Solution\u003c\/h3\u003e\n\u003cp\u003eThis direct-fit upgrade utilizes CNC-machined brass and billet aluminum internals with high-temperature Viton O-rings to create an impenetrable, pressure-balanced seal. Designed as a hybrid mechanical replacement, it directly reuses the factory electronic solenoid coil to preserve lightning-fast digital actuation without triggering DME fault codes. The pilot-actuated brass piston design counteracts boost pressure directly against the piston face, guaranteeing zero boost leak at high boost while providing rapid valve venting during throttle lift-off. Reference part numbers \u003cstrong\u003eT9357\u003c\/strong\u003e and \u003cstrong\u003eBOV034\u003c\/strong\u003e.\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;\"\u003e2013-2016 BMW 4 Series\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;\"\u003e\n\u003cstrong\u003eN20\u003c\/strong\u003e \/ \u003cstrong\u003eN26\u003c\/strong\u003e 2.0L Turbo \/ \u003cstrong\u003eF32\u003c\/strong\u003e, \u003cstrong\u003eF33\u003c\/strong\u003e, \u003cstrong\u003eF36\u003c\/strong\u003e\n\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;\"\u003e240 hp \/ 255 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;\"\u003eT9357 \/ BOV034\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e2013-2016 BMW 428i (F32 Coupe, F33 Convertible, F36 Gran Coupe) 2.0L Turbo N20\/N26\u003c\/li\u003e\n  \u003cli\u003e2013-2016 BMW 428i xDrive (F32 Coupe, F33 Convertible, F36 Gran Coupe) 2.0L Turbo N20\/N26\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the F32, F33, and F36 4 Series?\u003c\/strong\u003e\u003cbr\u003e Yes, this is a direct bolt-on fit for all 2013-2016 BMW 4 Series models equipped with the 2.0L \u003cstrong\u003eN20\u003c\/strong\u003e and \u003cstrong\u003eN26\u003c\/strong\u003e turbocharged engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill this throw a Check Engine Light (CEL) on the dash?\u003c\/strong\u003e\u003cbr\u003e No, retaining the factory electronic solenoid ensures seamless integration with the factory DME, preventing CELs and stored shadow codes.\u003c\/p\u003e\n\n\u003ch3\u003eThe BMW Precision Standard\u003c\/h3\u003e\n\u003cp\u003eEngineered to satisfy stringent European performance tolerances, this diverter valve upgrade maintains factory closed-loop boost management while delivering bulletproof mechanical reliability. Experience immediate throttle recovery and consistent manifold pressure without compromising factory electronic sophistication.\u003c\/p\u003e","brand":"VelocityMax","offers":[{"title":"Default Title","offer_id":50516612382968,"sku":"DS-E1R530EW7","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0800\/1290\/2648\/files\/blow-off-valve-diverter-for-bmw-4-series-2013-2016-2-0l-1.jpg?v=1789489404","url":"https:\/\/performancechiptuning.com\/fr\/products\/blow-off-valve-diverter-for-bmw-4-series-2013-2016-2-0l","provider":"Performance Chip Tuning","version":"1.0","type":"link"}