I am on a 1k budget and I decided to get an hr y-pipe, FI HFC, and 5/16 plenum spacer. Are there anything else I could add to make my stock sound even louder?

Thanks

 

swap out HFC for Test Pipes.

Or Headers.

 

have the mid pipe resonator removed

 

Z tube will give you a deeper exhaust tone and an open air filter will also add sound under the hood at the risk of losing power in hot climates.

 

I think you did pretty much what one can to make the stock exhaust louder, unless I am wrong.

 

OP, get up some sound clips once you get your setup installed. I am thinking about the same setup.

 

MoneyShot, there's just one more thing that will change/amplify the sound of your ride....Stillens CAI/Z-Tube combo. It's installed in the stock location, made of composite plastic so you won't have heat issues and contains a covered large K&N filter for more air intake. You'll love the sound....

 

also add an OEM Z-Tube, Stilen air box and Apexi Power Intake

https://g35driver.com/forums/engine-...er-intake.html


btw what year is your car? 5AT or 6MT?

 

I'm going with the same setup minus the spacer. I got my FI HFC's, but it looks like my HR Y pipe got lost in the mail. I was waiting to install them both at the same time.

 

Might be a month or so though :/


How much for it?




06 5at


Big difference installing the FI HFCs?

 

Nismo exhaust

 

I don't understand why members spend $ on a y-pipe? Manufactures claim HP gains with them over OE but most of us know those claims are false. I was running a Fuji y-pipe with a Magnaflow system and didn't notice any gains over the OE exhaust....glad it was sponsored. I didn't notice any HP gains until I switched to a full cat-back exhaust! HFCs pending after my smog check in late January....looking forward to more HP gains.... Has anyone in CA. tried to pass the smog test with Berks, maybe I don't need to wait.
Gary

 

^+1

I want a nismo/art combo so bad! That would be a sick exhaust setup But it's pricey.. Mmm glad I got a new job!

 

Not trying to thread hijack, but does anyone know if HFC's alone will void your factory warranty?