SKU: 179423 BorgWarner EFR Hardware Installation Kit 179423 BorgWarner 179423 EFR Hardware Installation Kit provides all essential components for mounting EFR series turbochargers on high-performance engines. This kit fits universally across BorgWarner EFR turbo models used in racing and street applications from Subaru WRX to BMW M3 and beyond. Install with confidence knowing every clamp gasket and bolt meets exact engineering standards for reliable boost delivery. Key Features Turbine and Compressor V-Band Clamps: Heavy-duty stainless steel clamps ensure airtight seals at housings preventing boost leaks under high pressure Complete Gasket Kit: Precision-cut gaskets for oil feed drain and exhaust connections deliver leak-proof performance from first startup Mounting Hardware Set: Grade 8 bolts and brackets match EFR flange patterns for rock-solid turbo positioning on any manifold Oil Restrictor and Fittings: Adjustable restrictor with AN fittings regulates oil flow protecting bearings during extreme RPM operation Installation Gaskets and Seals: Full assortment covers compressor outlet turbine inlet and water ports for complete assembly Product Notes Inspect turbo model for exact V-band sizing before install Apply anti-seize to bolts for repeated serviceability Ships in protective padded box handles rough transit Installation Notes Professional installation recommended. Torque V-band clamps to 8-10 ft-lbs using inch-pound torque wrench Compatible with T3 T4 V-band and EFR-specific flanges This Part Fits Year Make Model Submodel Universal BorgWarner EFR Turbochargers 7163 7670 9180 9280 All 2002-2023 Subaru WRX STI All 2006-2013 BMW M3 E92 E90 All 2015-2021 Ford Focus RS All 2008-2022 Mitsubishi Evo X All Why Choose BorgWarner? Leads OEM turbo production for global automakers Builds EFR line with racing-proven airflow and durability Engineers every component to exact tolerances for zero failures Frequently Asked Questions Q: Does this kit fit my EFR 7670 turbo? A: Yes 179423 works with all EFR models including 7163 7670 9180 9280 providing clamps fittings and hardware matched to series flanges Q: What materials are used in the clamps and fittings? A: Clamps are T304 stainless steel fittings are brass and aluminum gaskets are multi-layer steel for heat resistance up to 1800F Q: What warranty covers this kit? A: BorgWarner offers 2-year unlimited mileage warranty on hardware defects when installed per instructions Shipping & Handling Method: Standard ground shipping Availability: In stock - ships same or next business day Packaging: Compact box 6x4x2 inches Weight: 1.1 lbs