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Porsche 991 GT3 EVOMS Headers and Sport Cats (EXTEVO991GT3CSHSC)

$4,795.00 Pair

Unsurpassed Quality, Fitment & Performance... Made in Arizona. When we set out to build the finest header system for the Porsche 991 GT3 we had a monumental task in order to create something better than what Porsche developed. We determined the shortcomings of the OEM system and made significant improvements to the exhaust flow characteristics. Our design helps equalize each cylinder's exhaust pulses for better exhaust scavenging and consistent exhaust temperatures. Additionally we paid close attention to the exhaust flow into the catalyst which as recently become a problem with the OEM headers. The flow of the factory exhaust manifolds into the catalyst as caused excessive heat which causes this premature catalyst failure and cracking of the factory header before the catalyst. These issues have been corrected in our header design which helps reduce exhaust restriction and temperatures for increased overall power while improving the header integrity. EVOMS ClubSport Header Features: Designed and fabricated buy skilled craftsman with over 40 combined years producing Porsche exhausts Manufactured in Arizona using the highest quality certified USA stainless steel Incorporates 130mm German made 200 CPI HJS High Flow Catalysts Equal length, mandrel bent primary exhaust tubes - all argon purge welded Increases HP and TQ - On average ~11HP and ~13lb./ft. tq gained throughout the power range 100% bolt-on with no modifications Works with OEM Exhaust or EVOMS Bypass Valve Exhaust System Power Gains EVOMS ClubSport 991 GT3 Headers / Sport Catalysts: Below 5,500 RPM: ~11hp and ~13lb./ft. tq Above 6,000 RPM: ~7hp and ~6lb./ft. tq
Unsurpassed Quality, Fitment & Performance... Made in Arizona. When we set out to build the finest header system for the Porsche 991 GT3 we had a monumental task in order to create something better than what Porsche developed. We determined the shortc...
    Intelligent Tuning – Insanely Tuned. These are not just words; this is the SOUL of Evolution MotorSports.  With each new generation of technology, this core essence of our existence is what differentiates us from the competition. In 2001, we began the “Insanely Tuned” revolution with our over the top, high horsepower 996 twin turbos, which dominated the industry. Our perseverance and core beliefs have been substantiated with many coveted awards and current standing world records. Our vast performance innovations have set the industry standard and are currently used as the benchmark for many companies and consumers alike. While “they” try to catch up and replicate or duplicate our technologies, we have surpassed our own advancements while raising the bar even higher. Once you experience this elevated level of mind bending performance, it is a virus in your blood.Our History & Mission:Evolution: ev - o - lu - tion  (noun) A gradual process in which something changes especially into a more complex form.   Mission: We exist to satisfy our customers’ addiction to speed and passion for high performance.    Philosophy: Engineer, manufacture and offer the highest quality performance components for an elite group of extreme individuals.  Our cars are our passion, more than a means to get to and from work but an expression of who we are as people. An extension of our personalities: unique, aggressive, strong and powerful. We can help make each drive more enjoyable, more intense and less mundane.  We can help transform your car from the ordinary into the extraordinary. Experience: We have over half a century of combined experience in automotive engineering, design, fabrication, racing and many other facets of the automotive industry.  We drive and race the cars that we build components for.  We have an extensive R&D and test program that ensures our components are held in the highest standards.  Our Porsche race efforts help keep us on the cutting edge as we are constantly in search of that last ounce of power, a better “mouse trap” or ways to make the car handle or brake better.  We share your passion, your dream and the never-ending pursuit of more speed and performance.                      
    Intelligent Tuning – Insanely Tuned. These are not just words; this is the SOUL of Evolution MotorSports.  With each new generation of technology, this core essence of our existence is what differentiates us from the competition...