{"product_id":"dinan-free-flow-axle-back-exhaust-2012-2016-bmw-328i-428i-1","title":"Dinan Free Flow Axle-Back Exhaust - 2012-2016 BMW 328i\/428i","description":"Dinan engineers designed the BMW 328i\/428i exhaust to improve exhaust flow by reducing back pressure. resulting in increased power output and a great sporty sound that is civilized when you want it to be, and pleasantly aggressive under hard acceleration. Like all Dinan exhausts our 328i\/428i Free Flow Axle-Back Exhaust is engineered to reduce low-RPM drone so the cabin of the vehicle is still intimate and not drowned in an excessively loud tone. \u003cbr\u003e\n\u003cbr\u003e\nThe system is built with ease in mind and utilizes a simple bolt-on installation with included mounting hardware. It is made from 100% 16 gauge 304 stainless steel and will resist corrosion for years to come. The design features twin 70 mm ceramic black or polished and laser engraved exhaust tips for a tasteful high-performance look that yields a maximum performance gain of 4 horsepower and 3 ft-lbs of torque.\u003cbr\u003e\n\u003cbr\u003e\nThe factory computer-controlled exhaust valve is eliminated.","brand":"Dinan","offers":[{"title":"Default Title","offer_id":45293648871743,"sku":"DIN-D660-0046","price":699.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0760\/2041\/6831\/files\/oxlZUyuqmI.jpg?v=1686100418","url":"https:\/\/smgspeed.com\/products\/dinan-free-flow-axle-back-exhaust-2012-2016-bmw-328i-428i-1","provider":"SMGspeed","version":"1.0","type":"link"}