Hey all! Just wana say I did search and still couldn't find a definite answer are there any hfc that fit the x coupe? Or any talked about/rumoured under development?

 

Hey wild pea, I bought my exhaust a couple years ago, but I bought the ExoticSpeed Titan and they make HFCs for their exhaust. I like the sound, but I might go with an Ark system at some point. I'm sure there are some HFCs that fit the ARK system for us Xers.

 

Yeah I love the ark just wana give it some more growl and of course a lil bump in hp.....but I've been looking and have not found any that say specifically they fit the g37x coupe.....

 

Stillen makes them,Just got hfc's and cat back for my new XS. They sound amazing compared to stock.

 

FI RHFC!! I Love mine.

 

Made power too. Listen to how fast it ramps up and my sig is a unturned WHP number

 

Yep, Fast Intentions fit all the X's. As long as there is nothing extra on the HFC or TP it should fit the X without any issues. HKS and ARK with those side resonators may pose an issue. Always check with the manufacturer/vendor to ensure fitment before getting anything just to be safe.

 

what kind of gains do you get? is it a ton louder? sorry for the noob questions, I'm more of an audio guy. I want more speed but my audiophile system in my G is around 7-8K and dont want to mess with the acoustics too much

 

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hmmm.. Sounds awesome with the catback. Anyone have clips of these with the stock exhaust? Regular HFC's sound lousy with all the rasp, really would like to hear a cleaner version.

 

so to confirm,i have the ark cat back on a g37x coupe i can get FI rhfh or FI hfc and it will fit for sure?

 

Yes itll fit for sure. Im planning on getting a FI RHFC soon!! And im an X owner.

 

Yup... I have the FI Test Pipes on my XS coupe.. Love them, just a little too much rasp though.

 

Sick...xcoupe? And ya I wana pair them with my ark cbe just not sure if I should go rhfc or hfc....opinions?

 

I'm not to sure about the HFCs, but from what I've read the RHFCs, don't produce any rasp or drone bc they are "resonated", hence the R in RFHC. Also most importantly to me, they don't throw CEL.