Nissan 370Z Forum - View Single Post - About to purchase a F.I. Exhaust and HFC Question

markesc · 06-08-2017, 05:56 AM

I'm fairly conservative....

So I kept the stock cats and went with the 18" res option.... after about a month of use, it just seems a lot quieter/maybe it's me. It's almost stock sounding above 4k rpms unless maybe at full throttle, and even so, it's seems about only 20% louder than stock at best.

So now I'm entertaining HF resonated cats ($700) vs. non res x pipe ($???) (if you had to pick just one), which is probably going to be a low rpm drone vs. high rpm fun decision.

Just wish it was a Porsche flat six...

06-08-2017, 05:56 AM	#12 (permalink)
markesc Enthusiast Member Join Date: Apr 2014 Location: Utah Posts: 379 Drives: 2014 370z M.B. 7AT Rep Power: 3366	I'm fairly conservative.... So I kept the stock cats and went with the 18" res option.... after about a month of use, it just seems a lot quieter/maybe it's me. It's almost stock sounding above 4k rpms unless maybe at full throttle, and even so, it's seems about only 20% louder than stock at best. So now I'm entertaining HF resonated cats ($700) vs. non res x pipe ($???) (if you had to pick just one), which is probably going to be a low rpm drone vs. high rpm fun decision. Just wish it was a Porsche flat six...