{"product_id":"rb-bmw-n54-e82-e90-e91-high-flow-oil-drains-inc-135i-335i-535i","title":"RB BMW N54 High-Flow Turbo Oil Drain\/Return Lines RB04  Fits E82\/E88 135i, E90\/E91\/E92\/E93 335i\/335is, E60\/E61 535i, E89 Z4 35i\/35is, E71 X6 35i, F01\/F02 740i","description":"\u003cdiv\u003e\n  \u003ch2\u003eRB04 Turbo Oil Return Hoses for BMW N54 - High Capacity Drainback Kit\u003c\/h2\u003e\n\n  \u003cp\u003eKeep your N54 twin turbo running clean and reliable with RB04 high-capacity turbo oil return hoses. This direct-fit drainback solution provides a straight, large-bore path from the CHRA to the sump, helping prevent oil pooling, blue smoke at idle, smoking on overrun and turbo seal overload. Ideal for fast-road and tuned builds as well as fresh stock turbos, these return pipes are a proven upgrade for the BMW N54 straight six.\u003c\/p\u003e\n\n  \u003ch3\u003eWhy this upgrade makes a difference\u003c\/h3\u003e\n  \u003cp\u003eAgeing factory return pipes can pinch, collapse internally or use varying, undersized IDs that slow gravity drain. That restriction raises oil level in the core and can lead to smoke, leaks and reduced turbo life. RB04 replaces the restrictive routing with a consistent, generous inner diameter and a smooth, direct path for stable drainback under heat and load.\u003c\/p\u003e\n\n  \u003cul\u003e\n    \u003cli\u003eLarge-bore return path helps the turbo centre housing clear oil rapidly\u003c\/li\u003e\n    \u003cli\u003eStraight, anti-kink routing improves drain performance compared with ageing OE pipes\u003c\/li\u003e\n    \u003cli\u003eHelps reduce smoking after hot idle and hard pulls by preventing oil backup\u003c\/li\u003e\n    \u003cli\u003eGreat reliability upgrade for mapped, hybrid and stock-frame N54 setups\u003c\/li\u003e\n    \u003cli\u003eFits stock-footprint upgrade turbos such as RB, Pure, VTT and Hexon, plus factory units\u003c\/li\u003e\n    \u003cli\u003ePlug-and-play fitment for N54 twin turbo cars listed below\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eVehicle fitment - BMW N54 applications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eE82 and E88 135i\u003c\/li\u003e\n    \u003cli\u003eE90, E91, E92, E93 335i, 335ix, 335is\u003c\/li\u003e\n    \u003cli\u003eE60 and E61 LCI 535i, 535ix\u003c\/li\u003e\n    \u003cli\u003eE89 Z4 sDrive35i and sDrive35is\u003c\/li\u003e\n    \u003cli\u003eE71 X6 xDrive35i\u003c\/li\u003e\n    \u003cli\u003eF01 740i and F02 740Li\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003ePart number\u003c\/h3\u003e\n  \u003cp\u003e\u003cstrong\u003eRB04\u003c\/strong\u003e\u003c\/p\u003e\n\n  \u003ch3\u003eWhat our customers say\u003c\/h3\u003e\n  \u003cp\u003eWe have installed this RB04 drainback kit on multiple N54 builds in-house and run it on our own cars. Feedback is consistently positive, with owners reporting cleaner exhausts, less smoke after heat soak and greater confidence in long-term turbocharger health.\u003c\/p\u003e\n\n  \u003ch3\u003eFitting and support\u003c\/h3\u003e\n  \u003cp\u003eProfessional installation recommended. MJ Modifications in Warwickshire can supply and fit this kit. For a fitting quote, availability and lead times, email \u003ca href=\"mailto:info@mjmodifications.co.uk\"\u003einfo@mjmodifications.co.uk\u003c\/a\u003e.\u003c\/p\u003e\n\n  \u003ch3\u003eCompatibility check before dispatch\u003c\/h3\u003e\n  \u003cp\u003eTo ensure the right parts are sent, provide your UK registration or the last 7 digits of your VIN at checkout so we can verify fitment for your specific chassis and engine variant.\u003c\/p\u003e\n\n  \u003ch3\u003eManufacturer\u003c\/h3\u003e\n  \u003cp\u003eRB\u003c\/p\u003e\n\n  \u003ch3\u003eWarranty\u003c\/h3\u003e\n  \u003cp\u003eThe manufacturer does not offer a warranty on this item.\u003c\/p\u003e\n\n  \u003ch3\u003eAlso searched for\u003c\/h3\u003e\n  \u003cp\u003eBMW N54 turbo oil return hose, N54 return pipe kit, BMW 335i oil return pipe, 135i turbo drain pipe, 535i oil return hose, Z4 35i oil return pipe, X6 35i drainback hose, 740i oil return pipe, N54 smoke fix, N54 gravity drain, N54 CHRA drain hose, N54 turbo smoke on idle, stock-frame turbo drainback, RB04 oil return lines, BMW E82 E88 E90 E91 E92 E93 E60 E61 E89 E71 F01 F02 oil return kit.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"RB","offers":[{"title":"Default Title","offer_id":55977386148226,"sku":null,"price":205.2,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0871\/5445\/8937\/files\/RBBMWN54E82E90E91HIGHFLOWOILDRAINS_INC_135I_335I_535I_1946x_4ef81da9-9fa1-44eb-93e2-0881e091e2ad_1024x1024_2x-transformed.webp?v=1763374175","url":"https:\/\/mjmodifications.co.uk\/products\/rb-bmw-n54-e82-e90-e91-high-flow-oil-drains-inc-135i-335i-535i","provider":"MJ Modifications","version":"1.0","type":"link"}