EVOMS 991 GT3 Clubsport Headers / Sport Cats

Description

Part Number: EXTEVO991GT3CSHSC

Fitment: 2012 – 2016 Porsche 991 GT3

Unsurpassed Quality, Fitment & Performance… Made in Arizona.

When EVOMS set out to build the finest header system for the Porsche 991 GT3 they had a monumental task in order to create something better than what Porsche developed. EVOMS 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 they 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 EVOMS 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