{"product_id":"active-autowerke-bmw-s58-f97f98-x3mx4m-downpipes-w-active-aflow-cats-s58-catted-downpipes-11070a","title":"Active AutoWerke BMW S58 F97\/F98 X3M\/X4M Downpipes w Active AFlow CATs - S58 Catted Downpipes (11-070A)","description":"\u003cp\u003e\u003cstrong\u003eActive Autowerke BMW X3M S58 Downpipes\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eBMW introduced a new valvetronic, single turbo version of its direct-injection engine for the later F-Chassis models beginning in 2016 and continues into the G-Chassis models - the evolution to the S58 engine continues with the twin turbo variant used in the M-series vehicles. The Active Autowerke S58 downpipes for the X3M and X4M helps unleash some of the potential that is restricted by the OEM downpipes.\u003c\/p\u003e\u003cp\u003eTurbochargers are powered by spent exhaust gases created during the combustion process. The quicker these gases are evacuated, the better. Unfortunately, the factory down pipe in the S58 is a bit restrictive, which results in slower exhaust gases and slower turbo spool.\u003c\/p\u003e\u003cp\u003eThe Active Autowerke X3M\/X4M S58 Signature down pipe utilizes 3 inch diameter stainless steel piping in order to provide more power, quicker spool, and extreme durability. We've incorporated stainless flex joints and then down to 70mm to meet the OEM exhaust system. We never drop the diameter to smaller than the stock diameter of 70mm.\u003c\/p\u003e\u003cp\u003eThis variant includes a pair of 4.5\" Active A-flow catalytic converters that will NOT produce a CEL guaranteed by Active Autowerke (full replacement within first two years of ownership).\u003c\/p\u003e\u003cp\u003eThe Active A-flow super high output catalytic converter features full 304 stainless steel construction, including the substrate. Active A-flow Catalytic Converters are EPA registered and compliant in 49 states and fully OBD2 compliant. Active's proprietary precious metal loading technology ensures greatly reduced emissions, eliminating most \"Check Engine Lights\" due to cat efficiency errors. These high flow catalytic converters outperform stock converters and provide a reliable solution to the most common catalytic converter problems.\u003c\/p\u003e\u003cp\u003eThe Active A-flow Catalytic Converters are rated for engines putting out up to 850 horsepower while maintaining a high flow capacity. The reduced back-pressure from this high flow catalytic converter will allow you to maximize your engines horsepower without the harmful emissions. Say goodbye to Check Engine Lights for cat efficiency and failed emissions tests!\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003ePlease Note:\u003c\/strong\u003e These catalytic converters are not legal for use on vehicles registered in the state of California as a result of California Vehicle Code Section 27156 and 38391.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Federal law prohibits the tampering of an emissions control device. Mobile Source Enforcement Memorandum 1A, allows for aftermarket parts to be used in the repair or replacement of emissions control systems, provided the emissions aren't adversely affected. There is no mention or reference to cell density or converter volume dimension. The Active A-flow catalytic converter will produce emissions that will meet or exceed the EPA standards.\u003c\/p\u003e\u003ch4\u003eFeatures\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eNO CEL for catalytic efficiency when using these downpipes\u003c\/li\u003e\n\u003cli\u003eActive EPA registered high flow and fully OBD2 compliant\u003c\/li\u003e\n\u003cli\u003eCasted upper stainless steel V-Band for precise fitment\u003c\/li\u003e\n\u003cli\u003e4.50\" diameter piping allows for maximum power output\u003c\/li\u003e\n\u003cli\u003eQuicker turbo spool\u003c\/li\u003e\n\u003cli\u003eRated for up to 800 hp applications\u003c\/li\u003e\n\u003cli\u003eWithstands up to 1500 F\u003c\/li\u003e\n\u003cli\u003eCan reach operational efficiency within 9 seconds of startup\u003c\/li\u003e\n\u003cli\u003eEasily bolts-on 2013 no cutting or welding required\u003c\/li\u003e\n\u003cli\u003eDurable construction from TIG welded 304 stainless steel\u003c\/li\u003e\n\u003cli\u003ePrecise fitment\u003c\/li\u003e\n\u003cli\u003eUltra high flow 400 cell per square inch catalyst\u003c\/li\u003e\n\u003cli\u003eEPA compliant for use on OBD2 vehicles (1996 and newer) except in California\u003c\/li\u003e\n\u003cli\u003e304 stainless steel substrate is furnace braised to the mantle for outstanding durability\u003c\/li\u003e\n\u003cli\u003eGESI proprietary precious metal loading technology ensures greatly reduced emissions\u003c\/li\u003e\n\u003cli\u003eIdeal for Forced Induction Applications with no loss of HP\u003c\/li\u003e\n\u003cli\u003eBoth passengers and drivers are safe from harmful emissions and noise\u003c\/li\u003e\n\u003cli\u003eCovered by 5 Year \/ 50,000 Mile Warranty (on shell and tube ends) and 2 year \/ 25,000 Mile Warranty on the Catalytic core to original purchaser only - NOTE: warranty will be null and void if your car has excessive burble (greater than stock) as that physically destroys the catalytic core\u003c\/li\u003e\n\u003cli\u003eMade in Miami, Florida\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eActive Autowerke S58 Signature Downpipes Benefits The speed of a turbo's impeller wheel is limited by exhaust back pressure. A larger down pipe relieves some of this pressure, resulting in quicker and more efficient spool. With Active Autowerke's Signature downpipes, your S58 can rev quicker, and deliver more horsepower and torque.\u003c\/p\u003e\u003cp\u003eMinimizing back pressure while retaining daily drive-ability was the goal of our S58 downpipes. Owners can now upgrade to a product that is affordable, reliable, and easy to install.\u003c\/p\u003e\u003cp\u003eConstructed entirely from 304 stainless steel with 1.5MM wall thickness, we are confident that you'll be pleased with how robust and durable this down pipe is. Trouble-free installation and a long lifespan ensure that you'll enjoy many miles of performance with your S58!\u003c\/p\u003e\u003ch4\u003eNote\u003c\/h4\u003e\u003cp\u003eFITS S58 VEHICLE X3M and X4M\u003c\/p\u003e","brand":"Active AutoWerke","offers":[{"title":"Default Title","offer_id":42714013663319,"sku":"11-070A","price":2279.0,"currency_code":"USD","in_stock":true}],"url":"https:\/\/jmautosports.com\/products\/active-autowerke-bmw-s58-f97f98-x3mx4m-downpipes-w-active-aflow-cats-s58-catted-downpipes-11070a","provider":"JM Auto Racing","version":"1.0","type":"link"}