I've been told by multiple sources (Sam at GTM & Tony at FI) that the HFC cannot handle the heat/pressure of the TT setup (not sure I'd supercharged is any different) and they won't last. I'm thinking of resonated test pipes only because of this, but I don't want to add ANY rasp, just free up flow/power.

Motordyne art pipes :tup:
No rasp for me

Hey Guys

Thank you for your response!:tup:

Unfortunately I need a catalyst here in Switzerland!
If I get caught without a catalyst, the Nissan is shut down without compromise!
Bad laws here in Switzerland!:shakes head:

We will see what comes out at Fast Intentions ....
The cells are in a new 175 project off the supercharged world (SC & TT)!

Keep you up to date

Greetings from Switzerland
Ivo

Someone must make an aftermarket cat designed for FI that doesn't melt...

What have you heard about the cats breaking? Some threads about this have made me hesitant to pull the trigger

HFC were never thought about for FI is the problem. People who go with FI usually go with TP, RTP or down pipes because all HFC or even OEM cats will slowly be destroyed and could harm the engine.

You can talk to Tony@FI for a custom solution that will put the cats further away from the exhaust side of the turbos. The 3" TDX already implements this design for the cats.

I've been running the FI HFCs for about 21k miles now with my Stage 2 TT. Am I supposed to see or hear something? It's the same to me since the day 1 haha. Exhaust is even quieter now after getting the new transmission put in.