{"product_id":"axle-back-exhaust-bmw-f30-335i-f32-435i-2012-2016","title":"BMW 335i \/ 435i Axle-Back Exhaust with 4.25\" Carbon Tips — F30 \/ F32 N55, RWD (2012–2016)","description":"\u003cp\u003eA black chrome stainless axle-back for the F30 335i and F32 435i. It replaces the rear section behind the catalytic converter — the part that actually decides how your car sounds — and leaves everything forward of it factory.\u003c\/p\u003e\n\n\u003ch3\u003eHow it sounds\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eCold start:\u003c\/strong\u003e a deeper, fuller bark than stock that settles into a low, even burble at idle. You'll notice it in the driveway, but it isn't the kind of loud that gets you glared at.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAround town:\u003c\/strong\u003e under light throttle it's a smoother, deeper version of the factory tone — more presence, same manners.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhen you get on it:\u003c\/strong\u003e this is where it earns its money. Past about 3,000 rpm the N55's straight-six comes through clearly — a raspy, rising howl all the way to redline that the factory muffler mostly hides. Lift off and you may hear light burbles and pops on the stock tune; a tune adds more.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOn the highway:\u003c\/strong\u003e expect a mild hum at steady cruise around 2,000 rpm. Most owners find it easy to live with. If your commute is long and you want silence, a fixed, non-valved system isn't the right choice — ask us about alternatives.\u003c\/p\u003e\n\u003cp\u003eIt's the sound of the engine itself — no speakers, no piped-in noise. An axle-back is about sound and looks; on its own it won't add meaningful horsepower.\u003c\/p\u003e\n\u003ch3\u003eHow it looks\u003c\/h3\u003e\n\u003cp\u003eTwin 4.25\" carbon tips with a heat-blued inner lip fill the rear valance far better than the factory tips, and the black chrome piping stays dark instead of turning brown like bare steel.\u003c\/p\u003e\n\u003ch3\u003eRead this before you order\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThis is not a bolt-on.\u003c\/strong\u003e Installation requires cutting the factory exhaust at the factory break point. That is a job for a shop with a lift and a saw, not a driveway and jack stands, and it is not reversible — once the factory section is cut, putting the car back to stock means buying a new one.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRear-wheel drive only. This does not fit xDrive or any AWD model.\u003c\/strong\u003e If your car is xDrive, this part will not work and we would rather tell you now than process your return later.\u003c\/p\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBMW F30 335i — 2012 to 2015, rear-wheel drive only\u003c\/li\u003e\n\u003cli\u003eBMW F32 435i — 2014 to 2016, rear-wheel drive only\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSend us your VIN before you order and we'll confirm it fits in writing, free.\u003c\/strong\u003e It takes us a few minutes. On this part it also confirms you are not xDrive, which is the single most common reason an exhaust like this comes back.\u003c\/p\u003e\n\n\u003ch3\u003eIn the box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eY-pipe axle-back section, single inlet splitting to twin outlets\u003c\/li\u003e\n\u003cli\u003eTwo carbon fiber tips\u003c\/li\u003e\n\u003cli\u003eTwo stainless T-bolt clamps (60–63 mm)\u003c\/li\u003e\n\u003cli\u003eOne stainless sleeve coupler\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecification\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStainless steel construction, black chrome finish\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4.25\" OD carbon fiber tips with a blue burnt stainless inner tip\u003c\/strong\u003e — the burnt blue lip is a heat-treated finish, not paint, so it doesn't fade or peel\u003c\/li\u003e\n\u003cli\u003e3.75\" OD inner steel tip\u003c\/li\u003e\n\u003cli\u003e3\" ID inlet piping\u003c\/li\u003e\n\u003cli\u003e2.25\" ID outlet piping\u003c\/li\u003e\n\u003cli\u003eFixed system — non-valved, so one volume setting and no quiet mode. Louder than stock at every rpm, and no flap motor to fail later.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping and returns\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFree shipping, held in stock in the United States — expect delivery in 1–2 weeks.\u003c\/strong\u003e No customs wait and nothing to pay at the door. Tracking by email the moment it ships.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWe ship within the United States only\u003c\/strong\u003e, including Alaska and Hawaii. We don't ship internationally.\u003c\/p\u003e\n\u003cp\u003eUnopened parts can be returned within 30 days. Once it has been cut in or installed we cannot take it back, which is exactly why the free VIN check above is worth the five minutes. If it arrives damaged, send us photos within 7 days and we'll replace it or refund you in full — you ship nothing back.\u003c\/p\u003e\n\u003cp style=\"font-size:0.9em;opacity:0.75\"\u003eSold for off-road use only. Exhaust noise and emissions rules vary by state — if you're unsure what applies where you drive, ask us before you order.\u003c\/p\u003e","brand":"Kings Mods Auto","offers":[{"title":"Default Title","offer_id":44047809347646,"sku":"KMA-F3X-ABE-BK","price":419.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0670\/9700\/2046\/files\/kma-f30-axleback-2_88ac6337-2893-4b32-a419-3793be998d79.jpg?v=1790269801","url":"https:\/\/www.kingsmodsauto.com\/products\/axle-back-exhaust-bmw-f30-335i-f32-435i-2012-2016","provider":"KingsModsAuto","version":"1.0","type":"link"}