American Racing Headers ARH BMW E46 M3 1-3/4 x 3.5 Longtube Header System w/ Cats BMW46-01134300LSWC

Now available from LMPerformance: There is simply nothing currently offered as a package that provides the incredible HP, torque and sound as an ARH full system for your E46 BMW M3. This system features Headers patented rotational firing, 6 into 1 long tube header system for the E46 S54 powered M3.The Long System is a direct bolt-in to your existing Axleback. Available with 1-3/4 primaries. This system fits: 2001-2006 BMW E46 M3

Product features on ALL Headers systems include:

• 100% Made in the USA - Never Outsourced
• Made entirely of 304 stainless steel
• 1/2 thick laser-cut flanges for a warp-free seal
• Hand-ported TIG welded inlets
• Optimized primary tube routing for superior fit and performance
• 3.5 Merge collectors complete with welded scavenger spikes to increase velocity
• Catted systems feature 200 cell metallic substrate catalytic converters for extreme durability
• Requires TTFS Tuning

The ARHs new sound is described as having a much smoother and more refined exhaust note, with the typical S54 rasp practically eliminated! Another description was that of a Supra engine just rolling into boost but before the turbo(s) are fully spooled. A sound slightly higher in pitch and significantly more refined but with no rasp. The 6-1 merge with primaries sequenced for rotational firing and the single outlet 3-1/2”downpipe leading to the secondary section are responsible for this new sound. The collector allows the air to merge smoothly instead of turbulently in traditional collectors. For a system designed to make the most power humanly possible from this motor, the sound is very pleasant and the drone is minimal, but drone is ultimately controlled by the muffler you choose (so choose wisely).

Headers are made in the USA of all 304 stainless steel.

Are you in the market for American Racing Headers, long tube headers, American Racing exhaust systems or header exhaust packages? You won't go wrong with one of these from LMPerformance manufactured by American Racing Exhaust & Headers. Because American Racing Headers has a staff with over 40 years of combined high performance exhaust fabrication experience, the people at American Racing Headers make sure only the finest components and craftsmanship go into every American Racing Exhaust & header system.

In addition, LMPerformance and ARH Headers believe in the concept that "Made in the USA" is something to be proud of. American Racing Exhaust & Headers provides a product manufactured solely using U.S. made materials. American Racing Headers IS determined to stay a step ahead of the competition. Whether on the street or track, you'll know American Racing Exhaust & Headers makes the best.

LMPerformance carries Long Tube Headers for vehicles such as Camaro, Corvette, Truck, Mustang, Challenger, Charger and more. American Racing Headers are made of 304 Stainless Steel, look great, and are easy to install. We also have exhaust systems and header exhaust packages from American Racing Headers. All of these at just the right price and, of course, great customer service.

American Racing Headers are engineered and constructed using 304 Stainless Steel and are fabricated with precision cut, 3/8-inch warp-resistant and leak-free stainless steel flanges. Each primary tube is sized for the individual engine output to generate the greatest horsepower with the least amount of compromise created by tight engine bay parameters. Efficient flowing, state-of-the-art merge collectors that are tuned for HP and torque maximization are used in each application. Each header design has been tested in the extreme to ensure it delivers the performance gains we promise and you’d expect.

American Racing Headers are the only manufacturer trusted by Chevrolet to build the original equipment headers used in every modern late model COPO Camaro racecar ever produced.

If you are asking yourself if you should install an aftermarket performance exhaust or if they are worth the cost maybe we can help allay your fears in that respect. First of all, race headers are undoubtedly one of the simplest changes you can make that will generate an improvement in the way your engine performs because they are primarily a bolt-on application. They function by making it simpler for your engine to work exhaust gases out of the cylinders and they accomplish this by affording each cylinder with its individual exhaust pipe of equal lengths resulting in each cylinder’s exhaust gas being given the opportunity of arriving in the collector evenly with an absence of back pressure and consequently improving your engine’s power. If you are considering headers then take the time to peruse the LMPERFORMANCE web site and learn about the headers from the inimitable AMERICAN RACING HEADERS, a company that has been in the business of making headers since 2005 and with the goat of making a header that would be well received and problem free. Their customer base has grown and they are now a world renowned supplier of distinctive headers and cat-backs who in 2014 they were the first manufacturer in the performance industry to receive four separate Made in the USA certifications. Checkout our selection of Kooks Headers.

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