Fast Intentions Resonated High Flow Cats “RHFCs” – Nissan 350z / Infiniti G35 Coupe and Sedan



Please ensure to select your correct year/make/model to ensure you receive DE/HR model specific.


  • Direct OEM replacement; no cutting or welding required.
  • 2.5″ mandrel bent T-304 stainless steel tubing.
  • The catalytic converter is a 300 cell metallic core encased within a spun stainless steel shell.
  • 49 state OBD II compliant.
  • J-Bend style O2 sensor anti fouler to ensure CEL (Check Engine Light) stays off.
  • 3/8″ thick mild steel flanges. All flanges are bright nickel plated to eliminate potential corrosion.
  • All flanges are welded on the inside, sanded down and port-n-polished for a smooth exhaust flow. This process greatly reduces exhaust turbulence at the flange connection points.
  • (Optional) Extra wideband bungs can be welded in either one pipe or both pipes for an additional charge. A wideband bung is generally used for an Air/Fuel ratio reading on the dyno or an Air/Fuel wideband gauge within the vehicle.
  • Limited 3 year warranty on all welds and craftsmanship.
  • All gaskets and hardware included.
  • Built in the USA.


  • An increase of 18rwhp/20ft/lbs of tq in conjunction with the Fast Intentions Catback exhaust system
  • Refining the factory exhaust note by increasing depth and volume.
  • Reduction in EGT (Exhaust Gas Temperature.)
  • Weight: 13 lbs. (9 lbs. lighter than the factory catalytic converters.)


  • This product is hand built (in house) to order with a standard lead time of 2-7 weeks. Once your order is placed, you will receive a confirmation shipping window. Note: The lead time may fluctuate based on order volume.
  • Customers outside the continental U.S. are subject to additional shipping charges.
  • Image(s) shown may not reflect actual product.

Additional information

Vehicle Year:

2003, 2004, 2005, 2006, 2007, 2008


Nissan 350z, Infiniti G35 Coupe, Infiniti G35 Sedan


6MT (Manual), 5AT (Automatic)

California Shipment:

No, Yes


There are no reviews yet.

Be the first to review “Fast Intentions Resonated High Flow Cats “RHFCs” – Nissan 350z / Infiniti G35 Coupe and Sedan”

It's Great to see you again