World's Fastest

Porsche 997 Turbo

Learn More ▸

  Home > Products > Porsche > 911 > 991.1 (2012-2016) > Turbo & Turbo S > Exhaust >

Ardent Performance 991TT/S High Flow Catalysts
Ardent Performance 991TT/S High Flow Catalysts

Alternative Views:

Our Price: $2,495.00

Product Code: EXTHFC991TT

Ardent Performance Porsche 991 Turbo / S High Flow Catalysts

Ardent Performance high flow, 200 cell-per-square-inch high flow cats are a must have for anyone pushing their 991 Turbo or Turbo S well beyond stock power. Craftsman made in Arizona of 304 stainless steel, these high flow cats provide a significant improvement in exhaust flow compared to the stock 400 cell-per-square-inch catalysts, which reduces back pressure and exhaust gas temperature and provides for a large increase in performance. This effect is most pronounced on tuned cars or on those running full throttle for extended periods of time including on race tracks or road courses.

The Ardent Performance High Flow Catalysts are constructed using HJS high flow cat cores. Manufactured in Germany, HJS cat cores have been the exclusive choice of Evolution Motorsports for more than 15 years. They are the only cores we have used that hold up to the extreme abuse doled out by modified Porsches without melting or causing a check engine light during normal use.

  • HJS 200-cell cat cores--THE ONLY CHOICE for performance and reliability
  • Compatible with both 991.1 and 991.2 Turbo and Turbo S Models
  • Pair with the Ardent Performance Clubsport Muffler to have a complete turbo-back exhaust
  • 16 gauge T-304 stainless steel - mandrel bent and purge welded
  • Increases HP and TQ - On average ~25lb-ft and 15hp on top of a center muffler
  • 100% bolt-on - no modifications - easy installation
  • 2-year limited warranty

Share your knowledge of this product. Be the first to write a review »