For 2000-2006 BMW M54 Engine | E46 320i/325i/330i Z3 Z4 Exhaust Header

EXHAUST HEADER FOR 2000, 2001, 2002, 2003, 2004, 2005, 2006 BMW M54 Engine | E46 320i/325i/330i Z3 Z4 Fitment: 2000-2006 BMW 320i, 325i, 330i E46 2.2L, 2.5L & 3.0L 2000-2002 BMW Z3 E36/E37, E36/E38 2.2L, 2.5L & 3.0L 2002-2005 BMW Z4 E85, E86 2.2L, 2.5L & 3.0L Engine M54B22 : 2000–2006 E46 320i, 320Ci 2000–2002 E36/7 Z3 2.2i 2002–2005 E85 Z4 2.2i Engine M54B25 : 2000–2002 E36/7 Z3 2.5i 2000–2006 E46 325i, 325xi, 325Ci 2000–2004 E46 325ti 2002–2005 E85 Z4 2.5i Engine M54B30 : 2000–2006 E46 330i, 330xi, 330Ci 2000–2002 E36/7 Z3 3.0i 2002–2005 E85 Z4 3.0i Specifications: Brand Name: FLASHARKSKU: ES08335 (EH28535)Certificate: ISO9001:2000Application: Automobile Exhaust HeaderMaterial: Stainless SteelSurface: Mirror PolishOutlet Size: 2"Primary Tube Size: 1.75"Head Flange Thickness: 7/16"Outlet Flange Thickness: 3/8"The header features a 6-2-1 lightweight piping design. Shipping Information:Free Quick Shipping.Estimated Time of Arrival: within 3-5 working days. Features: The design utilizes an F1-style merge collector for reduced turbulence and creates more horsepower and torque Improved TIG welding with each weld back purged so each weld is protected on both the front and rear sides Includes 4 O2 (lambda) sensor ports just like the original down pipe configuration, does not include catalytic converters - not useable on the public roads! Check your local regulations Improvement is approximately 12 hp. With our ECU tuning software upgrades, we have seen increases of over 30 HP The design utilizes equal-length headers, smooth mandrel bends and large F1-style collectors Headers make the car noticeably faster across the rpm range with minimal additional noise Straight forward installation Stainless Steel Sport Exhaust Headers for BMW 320i/325i/330i/Z3/Z4 with M54 6-cylinder engine, and manual or automatic transmissions. Models with air pumps may require modifications. These high-performance headers were developed in Germany and are manufactured out of heavy gauge T304 stainless steel for long life. They are intended for track and off-road use only unless you weld in catalytic converters. The kit comes complete with gaskets. Left-hand drive models only. Not for four-wheel drive models. Replacing or upgrading your exhaust header is necessary for both engine performance and sound. Whether on or off the track, exhaust headers provide more horsepower and improved exhaust sound. FLASHARK offers many products to help you create your own custom engine headers. It's really easy and convenient to use: direct bolt-on, no modification needed.  Exhaust Header VS Manifold, which is the better choice? The structural differences between exhaust headers and manifolds are the material and size. From the material, exhaust headers are made of lighter, thinner steel, while exhaust manifolds are made of thick iron. Exhaust headers are also longer than exhaust manifolds. When in use, exhaust manifolds create back pressure, which lowers performance. Because each cylinder of the engine is given its own tube, however, headers eliminate this problem; thus, allowing the gases to exit without the creation of back pressure. Therefore, exhaust headers are a BETTER choice than an exhaust manifold. Replacing or upgrading your exhaust header is necessary for both engine performance and sound. Whether on or off the track, exhaust headers provide more horsepower and improved exhaust sound. FLASHARK offers many products to help you create your own custom engine headers. It's really easy and convenient to use: direct bolt-on, no modification needed.