HKS #33006-KN001

HKS Stainless Steel Front Pipe Lower Downpipes w/ Catalyzer - Infiniti Q50 16+, Q60 17+ V37, CV37

ISR Performance #IS-HFC-Q60

ISR Lower Downpipe High Flow Cat HFC - Nissan Z / Infiniti Q50, Q60 3.0t VR30DDTT

Powerhouse Amuse #AMUSE370Z7

Power House Amuse R1 Sports High Flow Catalytic Converter, HFC VQ35HR VQ37VHR - Nissan 350Z, 370Z / Infiniti G35, G37, Q50, Q60

Invidia #HS09N7ZTPCB

Invidia High Flow Catalytic Converter HFC, VQ35HR VQ37VHR - Nissan 350Z 370Z / Infiniti G35 G37 Q40 Q50 Q60

Berk Technology #BT1407-HFC-MET

Berk Technology Metallic Substrate High Flow Cats HFC, VQ35HR VQ37VHR - Nissan 350Z, 370Z / Infiniti G35, G37, Q50, Q60 #BEST SELLING HFC!!!

Kinetix #KX-HR-HFC

Kinetix High Flow Cats, HFC - SMOG Legal, VQ35HR VQ37VHR - Nissan 350Z, 370Z / Infiniti G35, G37, Q50, Q60

Motordyne #MD-018

Motordyne XYZ Y-Pipe Insert Attachment, High Flow Cat HFC Pipe