{"title":"BMW M440i G22 Exhaust","description":null,"products":[{"product_id":"dinan-free-flow-axle-back-exhaust-2019-2022-bmw-m340i-m440i","title":"Dinan Free Flow Axle-Back Exhaust – BMW M340i \/ M440i (B58)","description":"\u003cstyle\u003e.sl-desc h2{font-size:1.15em;letter-spacing:.06em;text-transform:uppercase;border-bottom:2px solid #111;padding-bottom:6px;margin:1.6em 0 .7em}.sl-desc h3{font-size:1em;margin:1.2em 0 .4em}.sl-desc ul{margin:0 0 1em 1.2em}.sl-desc li{margin:.25em 0}.va-table{width:100%;border-collapse:collapse;margin:.5em 0 1em;font-size:.95em}.va-table th{text-align:left;padding:10px 8px;border-bottom:2px solid #333;white-space:nowrap}.va-table td{padding:8px;border-bottom:1px solid #e5e5e5;vertical-align:top}.sl-note{font-size:.9em;color:#555;margin:.4em 0 1em}\u003c\/style\u003e\u003cdiv class=\"sl-desc\"\u003e\n\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eQuad exhaust tips have long been a signature of BMW's most powerful letter, and a feature Dinan has traditionally reserved for M cars that already wore four tips from the factory. That changes with the Dinan Free Flow Axle-Back Exhaust for the G20 M340i and G22 M440i: the B58 platform earns the distinction, and the factory valance cleanly accommodates four 102mm straight-cut tips, offered in black ceramic coated or polished, laser engraved finishes.\u003c\/p\u003e\n\u003cp\u003eThe move to four tips also drove a change in valve strategy — Dinan integrated a second valve for symmetry and sound, in place of the factory's single valve that routes all gas out one tip when closed. Built entirely from TIG welded, brushed T304 stainless steel with larger 76mm tubing, the system delivers a deep, meaty tone through both outer pipes with the valves open, while closed valves force gas into the muffler for a quieter, drone-tamed cruise.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum gain of +6 HP @ 6600 RPM (Dinan measured)\u003c\/li\u003e\n\u003cli\u003eMaximum gain of +5 lb-ft of torque @ 6600 RPM (Dinan measured)\u003c\/li\u003e\n\u003cli\u003e100% T304 stainless steel construction, TIG welded and brushed\u003c\/li\u003e\n\u003cli\u003e76mm main tubing versus 70mm factory tubing\u003c\/li\u003e\n\u003cli\u003eQuad 102mm (4 in.) clamp-on, double-walled, laser engraved tips in polished stainless or black ceramic coating\u003c\/li\u003e\n\u003cli\u003e4 lbs lighter than the factory system\u003c\/li\u003e\n\u003cli\u003eTwin computer-controlled exhaust valves, 76mm diameter, approximately 30% less restrictive than the OE valves\u003c\/li\u003e\n\u003cli\u003eFactory exhaust valve actuator is reused and a second valve and actuator is added to the opposite side for even flow in either valve position\u003c\/li\u003e\n\u003cli\u003eDrone abatement technologies inside the muffler to limit low-RPM cabin resonance\u003c\/li\u003e\n\u003cli\u003eDinan published installation time: 2.5 hours\u003c\/li\u003e\n\u003cli\u003eEmissions status per Dinan: \"This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.\"\u003c\/li\u003e\n\u003cli\u003eDinan warranty: the remainder of the BMW new-car limited warranty (up to 4 years \/ 50,000 miles) or 2 years \/ unlimited mileage from purchase, whichever is greater; wear items, maintenance parts, improper installation and competition use are excluded\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDinan muffler assembly\u003c\/li\u003e\n\u003cli\u003eLeft and right inlet pipes\u003c\/li\u003e\n\u003cli\u003eFour exhaust tips\u003c\/li\u003e\n\u003cli\u003eHardware kit with clamps, valve mounts, limiters, fasteners and washers\u003c\/li\u003e\n\u003cli\u003eExhaust valve actuator kit for G20 models, including one D661-0033 exhaust valve motor and related components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003ch3\u003eAdditional Parts Required\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNone.\u003c\/strong\u003e Dinan specifies no additional hardware for this part; all required mounting hardware is supplied with the kit.\u003c\/li\u003e\n\u003cli\u003eInstaller-supplied tools only. Dinan lists torque specifications throughout the instructions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/d660-0085_r5.pdf?v=1788302516\"\u003eDinan D660-0085 \/ D660-0085-BLK Free Flow Axle-Back Exhaust installation instructions (INS660-0085, Rev. F)\u003c\/a\u003e\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\u003cli\u003eM440i (G22\/G23 Convertible\/G26 Gran Coupe) is confirmed sold in both RWD and xDrive form in the US market (BMW dropped RWD only on some later facelift years per industry reporting) — both drivetrains are merged onto one row per model here since Dinan's own listing doesn't distinguish drivetrain for this part. Confirm current-model-year RWD availability with Speed Logic if ordering a very late build.\u003c\/li\u003e\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eD660-0085\u003c\/strong\u003e – polished, laser engraved stainless tips\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eD660-0085-BLK\u003c\/strong\u003e – black ceramic coated tips\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable class=\"va-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM340i \/ M340i xDrive\u003c\/td\u003e\n\u003ctd\u003eG20\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2020+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM440i \/ M440i xDrive\u003c\/td\u003e\n\u003ctd\u003eG22\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM440i \/ M440i xDrive Convertible\u003c\/td\u003e\n\u003ctd\u003eG23\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM440i \/ M440i xDrive Gran Coupe\u003c\/td\u003e\n\u003ctd\u003eG26\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2021+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n","brand":"Dinan","offers":[{"title":"Black Ceramic Coated","offer_id":42760175485094,"sku":"D660-0085-BLK","price":2399.95,"currency_code":"USD","in_stock":true},{"title":"Polished","offer_id":42760175550630,"sku":"D660-0085","price":2349.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/products\/d660-0085_1.jpg?v=1652486784"},{"product_id":"valvetronic-designs-valved-sport-exhaust-system-bmw-m340i-m440i-g20-g22","title":"Valvetronic Designs Valved Sport Exhaust System – BMW M340i\/M440i (G20\/G22)","description":"\u003cstyle\u003e.sl-desc h2{font-size:1.15em;letter-spacing:.06em;text-transform:uppercase;border-bottom:2px solid #111;padding-bottom:6px;margin:1.6em 0 .7em}.sl-desc h3{font-size:1em;margin:1.2em 0 .4em}.sl-desc ul{margin:0 0 1em 1.2em}.sl-desc li{margin:.25em 0}.va-table{width:100%;border-collapse:collapse;margin:.5em 0 1em;font-size:.95em}.va-table th{text-align:left;padding:10px 8px;border-bottom:2px solid #333;white-space:nowrap}.va-table td{padding:8px;border-bottom:1px solid #e5e5e5;vertical-align:top}.sl-note{font-size:.9em;color:#555;margin:.4em 0 1em}\u003c\/style\u003e\u003cdiv class=\"sl-desc\"\u003e\n\u003ch2\u003eOVERVIEW\u003c\/h2\u003e\n\u003cp\u003eValvetronic Designs' Valved Exhaust System for the BMW M340i and M440i is built for drivers who want flexibility, performance, and an unforgettable exhaust note from the B58. The system begins with a massive 3.5\" midpipe, splitting into unrestricted dual 3\" mandrel-bent runs that flow to a set of signature Valvetronic Designs tips. With the valves open, expect maximum drama — turbospool that's impossible to ignore, aggressive overrun pops, and a motorsport-inspired tone from idle to redline. With the valves closed, volume drops by more than 25 decibels for a docile, daily-drivable setup suited to early morning starts or long highway cruises.\u003c\/p\u003e\n\u003cp\u003eConstruction is T304 stainless steel with precision TIG welds for durability and a flawless finish, also available in Grade 5 titanium for a further 21.7 lb weight savings over the factory system. Dual pneumatic-actuated valves are built for longevity and precision control, and the whole system is fully mandrel-bent for maximum flow and 100% reversible back to stock.\u003c\/p\u003e\n\u003ch2\u003eSPECS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMaterials: T304 stainless steel or Grade 5 titanium\u003c\/li\u003e\n\u003cli\u003eLayout: 3.5\" midpipe feeding dual 3\" mandrel-bent rear piping\u003c\/li\u003e\n\u003cli\u003eValves: Dual pneumatic-actuated valves for longevity and precision control\u003c\/li\u003e\n\u003cli\u003eWeight savings: 21.7 lb lighter than factory exhaust\u003c\/li\u003e\n\u003cli\u003eConstruction: Fully mandrel-bent, precision TIG welds\u003c\/li\u003e\n\u003cli\u003e100% reversible — return to stock at any time\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePARTS INCLUDED\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eComplete kit as supplied by Valvetronic Designs; see the installation instructions for the full bill of materials.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTECH RESOURCES\u003c\/h2\u003e\n\u003ch3\u003eAdditional Parts Required\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNone.\u003c\/strong\u003e Valvetronic Designs ships this system as a complete bolt-on kit; no additional hardware is required for a basic installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNo manufacturer install video is currently published for this specific system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eValvetronic Designs' product title references the G26 M440i Gran Coupe, but its own published Fitment tab and SKU prefix list only the G20 M340i and G22 M440i — the G26 has been left off the table below. Confirm G26 fitment with Speed Logic before ordering.\u003c\/li\u003e\n\u003cli\u003ePriced at Valvetronic Designs' direct list price.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePART NUMBER\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW.G20.M340i.VSES.BR.[tip]\u003c\/strong\u003e — T304 Stainless Steel — $2,699.99 (tip suffix: BRSH \/ BRT \/ BLK \/ FC \/ RC)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBMW.G20.M340i.VSES.TI.[tip]\u003c\/strong\u003e — Grade 5 Titanium — $3,599.99 (tip suffix: BRSH \/ BRT \/ BLK \/ FC \/ RC \/ TIBRT [Raw Titanium finish, Titanium only])\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eVEHICLE APPLICATIONS\u003c\/h2\u003e\n\u003ctable class=\"va-table\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eChassis\u003c\/th\u003e\n\u003cth\u003eEngine\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM340i\u003c\/td\u003e\n\u003ctd\u003eG20\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2019+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBMW\u003c\/td\u003e\n\u003ctd\u003eM440i\u003c\/td\u003e\n\u003ctd\u003eG22\u003c\/td\u003e\n\u003ctd\u003eB58 3.0L Turbo I6\u003c\/td\u003e\n\u003ctd\u003e2019+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Valvetronic Designs","offers":[{"title":"(4) Brushed Steel (3.5 Outlet) \/ T304 Stainless Steel","offer_id":52607328649496,"sku":"BMW.G20.M340i.VSES.BR.BRSH","price":2699.99,"currency_code":"USD","in_stock":true},{"title":"(4) Burnt (3.5 Outlet) \/ T304 Stainless Steel","offer_id":52607328715032,"sku":"BMW.G20.M340i.VSES.BR.BRT","price":2699.99,"currency_code":"USD","in_stock":true},{"title":"(4) Burnt (3.5 Outlet) \/ Grade 5 Titanium","offer_id":52607328747800,"sku":"BMW.G20.M340i.VSES.TI.BRT","price":3599.99,"currency_code":"USD","in_stock":true},{"title":"(4) Black (3.5 Outlet) \/ T304 Stainless Steel","offer_id":52607328780568,"sku":"BMW.G20.M340i.VSES.BR.BLK","price":2699.99,"currency_code":"USD","in_stock":true},{"title":"(4) Black (3.5 Outlet) \/ Grade 5 Titanium","offer_id":52607328813336,"sku":"BMW.G20.M340i.VSES.TI.BLK","price":3599.99,"currency_code":"USD","in_stock":true},{"title":"(4) 1x1 Carbon Fiber (3.5 Outlet) \/ T304 Stainless Steel","offer_id":52607328911640,"sku":"BMW.G20.M340i.VSES.BR.RC","price":2699.99,"currency_code":"USD","in_stock":true},{"title":"(4) 1x1 Carbon Fiber (3.5 Outlet) \/ Grade 5 Titanium","offer_id":52607328944408,"sku":"BMW.G20.M340i.VSES.TI.RC","price":3599.99,"currency_code":"USD","in_stock":true},{"title":"(4) Raw Titanium (3.5 Outlet) \/ Grade 5 Titanium","offer_id":52607328977176,"sku":"BMW.G20.M340i.VSES.TI.TIBRT","price":3599.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2307\/8117\/files\/A7404171.jpg?v=1788388978"}],"url":"https:\/\/speedlogicauto.com\/collections\/bmw-m440i-g22-exhaust.oembed","provider":"SPEED LOGIC","version":"1.0","type":"link"}