{"product_id":"ecs-tuning-2-piece-lightweight-front-brake-rotors-pair-325x28-m3-e46","title":"ECS Tuning 2-Piece Lightweight Front Brake Rotors\/Discs, Drilled \u0026 Grooved\/Slotted, Semi-Floating Vented Pair 325x28mm – BMW E46 M3 2001-2006, S54 – Performance Fast Road\/Track Day Upgrade – Direct Bolt-On OE Calipers (Non-CSL\/ZCP)","description":"\u003cp\u003e\u003cstrong\u003eM3 E46 Front Twin-Piece Drilled and Grooved Brake Set, 325 x 28 mm\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eGive your S54-powered M3 the braking confidence it deserves with this premium twin-piece front brake set from ECS. With an alloy hat and a grey cast iron ring, these semi floating, vented discs slash unsprung mass, improve pedal feel and keep temperatures in check under spirited driving. It is a true plug-and-play front pair for 2001 to 2006 M3, excluding CSL and ZCP, that bolts up with factory calipers and lines.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhy enthusiasts choose this upgrade\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLighter rotating mass saves over 3 lb per side for sharper turn-in, more responsive acceleration and reassuring stopping power.\u003c\/li\u003e\n  \u003cli\u003eDrilled and grooved faces clear gas, dust and water for consistent bite in the wet and far better fade resistance on fast road and track days.\u003c\/li\u003e\n  \u003cli\u003eSemi floating mounting allows the ring to expand evenly at high temperature which helps combat warping and vibration.\u003c\/li\u003e\n  \u003cli\u003eHeat-treated rings paired with precision machining deliver smooth running and long-term stability under repeated heavy use.\u003c\/li\u003e\n  \u003cli\u003e6061 aluminium hats are hard anodised in matte black for corrosion protection and a clean, OE-plus look behind your wheels.\u003c\/li\u003e\n  \u003cli\u003eChamfered holes and ball end-milled grooves reduce stress risers that can lead to cracking on inferior discs.\u003c\/li\u003e\n  \u003cli\u003eNon-friction areas, including internal vanes, are coated to resist road salt and grime.\u003c\/li\u003e\n  \u003cli\u003eGround braking surfaces help pads bed in evenly for a confident, linear pedal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eReal-world performance you can feel\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWe run these on our own cars and have fitted them for customers who demand fast-road and occasional track capability. Feedback has been consistently positive: firmer pedal, stronger initial bite and repeatable performance lap after lap. If you are chasing an OE-fit solution that elevates braking without the complexity of a big brake kit, this is the standout choice.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey details\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFront axle only\u003c\/li\u003e\n  \u003cli\u003eSize 325 mm x 28 mm\u003c\/li\u003e\n  \u003cli\u003eTwin-piece semi floating construction\u003c\/li\u003e\n  \u003cli\u003eDrilled and grooved friction faces\u003c\/li\u003e\n  \u003cli\u003eApprox. 15.3 lb each versus roughly 18.5 lb for standard M3 discs\u003c\/li\u003e\n  \u003cli\u003eIncludes ECS stainless rotor set screws to replace rusty factory fasteners\u003c\/li\u003e\n  \u003cli\u003eCompatible with stock E46 M3 calipers, ABS and brake hoses\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFitment\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eBMW M3 E46 with S54 3.2\u003c\/li\u003e\n  \u003cli\u003eModel years 2001 to 2006\u003c\/li\u003e\n  \u003cli\u003eNot suitable for CSL or Competition Package ZCP brakes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eInstallation\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDirect-fit with no permanent modifications required. For best results, follow correct torque specs and bed-in procedures. Prefer a professional install and setup. Book fitting with MJ Modifications in Warwickshire. Email \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e for a quote.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eServiceability\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eReady for a future re-ring. ECS offers discounted replacement rings for original purchasers with proof of ownership. Contact us for assistance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003ePopular searches\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eM3 E46 front brake discs, BMW E46 performance stoppers, two piece front disc set, drilled and grooved M3 rotors, lightweight alloy hat discs, semi floating front pair, 325x28 front rotors for M3, fast road brake upgrade, track day discs for BMW M3 E46, OE fit performance brake set, plug-and-play M3 braking, uprated front discs 5x120 BMW.\u003c\/p\u003e","brand":"Performance M","offers":[{"title":"Default Title","offer_id":55975247315330,"sku":"ES2561992","price":705.87,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/xsf__05567.1533807896.jpg?v=1763321403","url":"https:\/\/mjmodifications.co.uk\/products\/ecs-tuning-2-piece-lightweight-front-brake-rotors-pair-325x28-m3-e46","provider":"MJ Modifications","version":"1.0","type":"link"}