Long Tube Race Header Set 997.1 - Brombacher Edition

Description

Our entire “Brombacher” line of exhausts is manufactured by M&M Exhaust, GmbH in Germany. They manufacture a multitude of Porsche Motorsport, Race Exhausts and Street Exhausts. Each system is tested comprehensively for exhaust gas scavenging, flow velocity, thermal stress, cracking and longevity. M&M exhausts have competed in and won hundreds of 24-hour races over the years including Nürburgring, Le Mans, Dubai, Daytona to name a few. When you purchase these headers, you are the benefactor of all that Porsche racing experience. If you are looking for an exhaust product that can handle abuse at the track, look no further.

How are these headers different to the competition you ask? M&M manufactures in Germany and uses the highest-grade German V2A - X5CrNi18-10 - 1.4301 (T-304 L) light weight stainless steel, these headers only weigh 22 lbs (10 kg) which are lighter than the stock headers. They start with a laser cut, stainless steel, dual plated primary flange which is more labor intensive to manufacture. M&M's race experience with thick, single plated flanges warping with age, heat and vibration lead to costly performance losses which prompted them to engineer a more reliable design. Their double plated flange allows for greater thermal expansion which dissipates heat more efficiently, which equates to greater reliability on the track or street. Next, look at the hand ported primary inlets, again, this is a more labor-intensive method, but hand porting means more laminar flow which equates to greater exhaust gas velocity and more performance. The inlets lead us to the long tube, equal length primary tubing whose diameter is selected and designed specifically for your engine's displacement. Each primary tube is mandrel bent, segmented and purge TIG welded by hand. For those thinking, why aren't the primaries a seamless length of tubing like some others in the industry? Segmenting strengthens the primaries and prevents stress cracks commonly found with the competition's headers. M&M back purge TIG welds each joint which reduces carbide precipitation and means seamless internal welds for more laminar flow and greater performance. This primary design method has been proven over years of time under the toughest endurance racing conditions. But M&M didn't stop there, they also welded on motorsports thermo-isolation wrap on the primary that is closest to critical components so that nothing is negatively impacted. The primary tubing leads us to the custom made, purge TIG welded, internally blended merge collector that smoothly transitions into a larger downpipe outlet for greater scavenging effect. The header ends with a hand ported outlet and stock style lighter weight 3 bolt flange.

Features:
+ 10 HP and + 9 TQ
Long tube, equal length 45 mm Ø primary tubing with 63.5 mm collector
Internal motorsport merge collector – for increased velocity and laminar flow
German V2A - X5CrNi18-10 - 1.4301 (T-304 L) stainless steel for improved durability
Hand-ported TIG welded inlets for optimized flow
Reduces back pressure and thermal stress
Increased low and mid-range torque with added top end horsepower
Made in Germany

Sold as a set. Includes right and left side.

Please note: Please add 2 Engine to Header Gaskets when ordering, part # 99611110755EQ or our installation kit.