BMW E90 E91 3 Series 2006-2012 N52 Header 325i 325xi 328i 328xi 330i 330xi

Unlock the full potential of your BMW N52 engine with FLASHARK's precision-engineered long tube headers. Tailored specifically for E90, E91, E92, E93, and E82 models, these headers maximize exhaust flow and minimize backpressure, delivering noticeable power gains. Made from durable T304 stainless steel, they offer a sleek mirror-polish finish, easy installation, and enhanced exhaust tone. Perfect for drivers seeking improved engine efficiency, performance, and sound. Fitment: 2006-2011 E90 BMW 325i 325xi 328i 328xi 330i 330xi - Sedan 2006-2011 E91 BMW 325i 328i - Wagon 2007-2012 E92 BMW 325i 328i 330i - Coupe 2007-2012+ E93 BMW 328i - Convertible 2008-2012 E82 BMW 128i Note: This also fits other classic BMW N52 model. See full compatibility list here Specifications: Brand Name: FLASHARK Certificate: ISO9001:2000 Application: N52 Long Tube header Material: Stainless Steel Surface: Mirror Polish 3/8” Thick Lasercut and CNC Machined Flanges Primary Diameter: 1.50” – 16 gauge Features: High-Performance Design: Improves exhaust flow and reduces backpressure for enhanced engine efficiency and power gains. Stainless Steel Construction: Made from high-quality T304 stainless steel for superior durability, corrosion resistance, and heat tolerance. Mandrel-Bent Piping: Ensures smooth and unrestricted airflow, minimizing turbulence for maximum exhaust performance. Precision Fitment: Specifically designed for BMW N52 engine in E90, E91, E92, E93, and E82 platforms, ensuring an exact fit without modification. Direct Bolt-On Installation: Comes with pre-drilled mounting points and necessary hardware, making installation straightforward and hassle-free. Weight Reduction: Lighter than OEM exhaust components, contributing to improved handling and overall vehicle dynamics. Compatible with Factory Sensors: Retains the use of stock oxygen sensors and catalytic converter placements for emissions compliance where applicable. Enhanced Exhaust Tone: Produces a more aggressive, sporty exhaust note, giving the vehicle a refined yet powerful sound profile. FAQ Q1: Will these FLASHARK long tube headers fit my 2006-2013 BMW E90 328i or 325i? A1: Yes! FLASHARK long tube headers are precision-engineered specifically for 2006-2013 BMW N52 and N51 naturally aspirated inline-six engines. They provide an exact bolt-on fitment for the E90, E91, E92, E93, and E82 platforms. This covers models like the 128i, 323i, 325i, 325xi, 328i, 328xi, 330i, and 330xi across sedan, coupe, wagon, and convertible body styles, serving as the ultimate performance upgrade for the bmw headers for 2007-2013 325i 328i 330i segment. Q2: Are these FLASHARK N52 headers a catless design? A2: Yes, these are high-performance catless headers n52 owners trust to unlock maximum airflow. By completely removing the restrictive primary catalytic converters embedded inside the stock OEM factory exhaust manifold, these n52 catless headers eliminate severe backpressure, giving your engine a massive increase in horsepower, torque, and throttle response. Q3: What is the difference between N52 headers and N51 headers, and will this kit fit both? A3: This FLASHARK performance exhaust header is intentionally designed to fit both BMW N52 and N51 engine configurations. Although the N51 engine features SULEV emissions components and a slightly lower compression ratio, the cylinder head exhaust flange profile and downpipe layout are completely identical to the N52. Therefore, this kit functions flawlessly as both N52 headers and n51 catless headers with no modifications required. Q4: Do these E90 headers require welding or custom modifications for installation? A4: No custom fabrication, cutting, or welding is required. FLASHARK bmw e90 n52 headers feature a direct bolt-on design with pre-drilled mounting points that align perfectly with your factory exhaust studs. While it is engineered for an exact fit, professional installation is highly recommended due to the tight clearance constraints naturally present within the E90 n52 headers engine bay environment. Q5: What materials are used to construct these BMW 328i headers? A5: Our high-quality bmw 328i headers are meticulously crafted from premium, heavy-duty T304 stainless steel with 16-gauge mandrel-bent piping for smooth, unrestricted airflow. They feature ultra-durable 3/8” thick laser-cut and CNC machined flanges paired with a stunning mirror-polish finish. This guarantees superior corrosion resistance and high-temperature tolerance for all model variations, including 2007 bmw 328i headers, 2008 bmw 328i headers, 2009 bmw 328i headers, and 2011 bmw 328i headers lines. Q6: Are there adequate mounting locations for factory O2 sensors on this N52 header? A6: Yes, the FLASHARK n52 header explicitly retains the factory oxygen (O2) sensor bungs in their optimal positions. This allows you to reinstall your stock O2 sensors directly into the long tube headers without needing to stretch or splice the wiring harness, maintaining proper real-time engine management feedback to the bmw n52 ECU. Q7: Will installing these catless headers for n52 trigger a Check Engine Light (CEL)? A7: Yes, because these catless headers for n52 eliminate the factory primary catalytic converters, your secondary O2 sensors will detect the uncleaned exhaust gases and inevitably trigger a Check Engine Light (CEL) for catalyst efficiency. To clear the CEL and fully optimize air-fuel ratios for maximum horsepower gains, a Stage 2 ECU software tune is highly recommended. Q8: How much horsepower gain can I expect from these E90 330i headers? A8: Upgrading to FLASHARK e90 330i headers typically yields an impressive gain of 15 to 20 horsepower and a substantial increase in mid-range torque, especially when paired with an aftermarket air intake and a proper Stage 2 ECU software tune. The smooth mandrel-bent runners optimize exhaust scavenging, maximizing the raw efficiency of the 328i headers upgrade. Q9: What hardware comes included with the 2006-2013 bmw 128i 325i 328i 330i header kit? A9: The 2006-2013 bmw 128i 325i 328i 330i header kit comes complete with the essential installation hardware required for a leak-free setup. This includes robust, high-temperature exhaust gaskets and heavy-duty clamps to ensure a secure, flush seal against the engine block right out of the box, even for early models requiring 2006 bmw 325i headers solutions. Q10: Is this product categorized as an N52 downpipe or an exhaust header? A10: Because the BMW N52 engine is naturally aspirated (non-turbo), this product is technically a long tube exhaust header or high-performance exhaust manifold. However, because it removes the factory primary catalytic converters—a role typically played by a downpipe n52 in turbocharged vehicles—some enthusiasts colloquially refer to it as an e90 catless downpipe or downpipe upgrade during their search. Q11: How does the FLASHARK header enhance the BMW E90 N52 exhaust tone? A11: By replacing the heavy, sound-muffling OEM cast-iron manifold with lightweight, mandrel-bent stainless steel piping, these bmw e90 n52 headers unleash a deeper, crisper, and much more aggressive straight-six tone. It completely removes the restriction while delivering a refined, sporty European exhaust profile that screams under wide-open throttle but remains refined during daily street cruising. Q12: Why should I choose FLASHARK long tube headers over other market alternatives? A12: FLASHARK long tube headers represent the perfect balance of elite build quality and exceptional value. Manufactured under strict ISO9001:2000 quality certification standards, they offer ultra-thick CNC machined flanges, premium T304 stainless steel construction, and substantial weight reduction compared to stock units. This delivers top-tier performance gains for your bmw n52 at a fraction of the cost of high-priced competitor options.