Fast Intentions exhaust is here! (continued)

Bullit79 · 10-07-2014, 11:07 AM

Quote:

Originally Posted by kentmo280z

I placed an order about a week or so ago!!! FI Cat back exhaust, along with Berk High Flow cat's ( I like how they have mounting brackets welded on), Stillen gen 3 intake.... Pretty excited.....
Wondering if the Z1 intake plenum upgrade is worth using to complete the project???

So the FI HFC's don't have mounting brackets to go with the stock supports, correct? What are the disadvantages of NOT using the stock cat supports?

Also while on the subject, I'm assuming the FI resonated HFC's would cut down on any drone noise compared to non-resonated HFC's. I already have the 18" resonated CBE, but wouldn't mind it being louder at WOT. Cruising volume is ok to me and I would like to keep it where it is, or maybe just a TAD louder.

EDIT: Off topic note. Love the sound of the exhaust when I'm driving in the parking garage at work. Also love the fact that some car alarms will chirp when I drive by

1cleanZ · 10-07-2014, 02:45 PM

Quote:

Originally Posted by cooltoy

No, Tony. It's like a pop pop sound when the refs drop. I am not complaining, just curious. I am ultra sensitive to every sound I guess.

I think R3V answered it. I just did not expect this car to backfire, (or what ever it is). I hear it a lot on loud V8s.

The noise you're talking about..."pop pop", is more of a backfire. This is most common in the nonresonated setup, which IMO is just "pissed off" sounding! It doesn't happen every time, but on an occassion when you hold your rev in the higher RPMs and all of a sudden let off, you'll get a "POP!" Puts a smile on my face very time!

Quote:

Originally Posted by Bullit79

So the FI HFC's don't have mounting brackets to go with the stock supports, correct? What are the disadvantages of NOT using the stock cat supports?

Also while on the subject, I'm assuming the FI resonated HFC's would cut down on any drone noise compared to non-resonated HFC's. I already have the 18" resonated CBE, but wouldn't mind it being louder at WOT. Cruising volume is ok to me and I would like to keep it where it is, or maybe just a TAD louder.

EDIT: Off topic note. Love the sound of the exhaust when I'm driving in the parking garage at work. Also love the fact that some car alarms will chirp when I drive by

There isn't necessarilly an "advantage" to not having the mounting brackets, they just aren't required to have is all.

The RHFCs will cut down slightly, but not a ton. I personally have ran RHFCs on the G37 setup with 18" in the X, and currently run RHFCs with NONres X. Drone is more prone from the Xpipe then trying to stop is immediately out of the cat, but since you have 18" resonators in the X already, you would most likely notice an immediate difference w/ the RHFCs vs HFCs.

cooltoy · 10-07-2014, 08:35 PM

Quote:

Originally Posted by 1cleanZ

The noise you're talking about..."pop pop", is more of a backfire. This is most common in the nonresonated setup, which IMO is just "pissed off" sounding! It doesn't happen every time, but on an occassion when you hold your rev in the higher RPMs and all of a sudden let off, you'll get a "POP!" Puts a smile on my face very time!

.

Thanks. That is what I figured. Can this sound be adjusted (made louder or quiter) by tuning he car differently?

Sales@F.I. Inc. · 10-07-2014, 10:48 PM

Quote:

Originally Posted by Darketch

@1cleanZ - just want to say Thanks. Your YouTube videos helped me make my decision on no only FI for my CBE, but also NON-resonated. Love the note. Next mode will be FI RHFCs!

That will sound amazing. Lance [1cleanZ] is our premier product & sales vendor on the forum. Feel free to let him or myself know if you need anything.

Quote:

Originally Posted by zcar_dad

F.I. #1029 Due in 10/9 just in time for my 44th Wedding Aniversary. Son has the lift ready for the install.

Congrats! The wait will be well worth it.

Quote:

Originally Posted by cooltoy

Thanks. That is what I figured. Can this sound be adjusted (made louder or quiter) by tuning he car differently?

I don't believe there is any way to adjust the sound level while tuning the car. If you'd like to give me a call, I'd be more than happy to discuss your question.

- Kevin

cooltoy · 10-08-2014, 10:04 AM

Quote:

Originally Posted by Sales@F.I. Inc.

I don't believe there is any way to adjust the sound level while tuning the car. If you'd like to give me a call, I'd be more than happy to discuss your question.

- Kevin

I was not referring to sound level of the exhaust, just the amount of backfire I guess. Might be a dumb question, maybe the level for the sound of the backfire and the level of sound of the exhaust are interrelated (directly or inversely).

I have no experience with engines larger then 4 cylinders and have never experienced backfire.

I don't think a phone call is necessary, I am not unhappy, just trying to learn stuff.

Thank you.

Sales@F.I. Inc. · 10-08-2014, 11:03 AM

Quote:

Originally Posted by cooltoy

I don't think a phone call is necessary, I am not unhappy, just trying to learn stuff.

Thank you.

I'm glad you are happy; if you need anything please reach out.

- Kevin

jwick · 10-08-2014, 12:16 PM

Quote:

Originally Posted by cooltoy

I was not referring to sound level of the exhaust, just the amount of backfire I guess. Might be a dumb question, maybe the level for the sound of the backfire and the level of sound of the exhaust are interrelated (directly or inversely).

I have no experience with engines larger then 4 cylinders and have never experienced backfire.

I don't think a phone call is necessary, I am not unhappy, just trying to learn stuff.

Thank you.

Are you running Long Tube Headers or High Flow Cats?

scottIN · 10-09-2014, 12:43 PM

Quote:

Originally Posted by cooltoy

I was not referring to sound level of the exhaust, just the amount of backfire I guess. Might be a dumb question, maybe the level for the sound of the backfire and the level of sound of the exhaust are interrelated (directly or inversely).

I have no experience with engines larger then 4 cylinders and have never experienced backfire.

I don't think a phone call is necessary, I am not unhappy, just trying to learn stuff.

Thank you.

I love the scavagening (if that's a word). I've actually learned how to make it do it anytime I want: consistent throttle pressure to a real quick tiny, tiny, increase (100 rpm or so) and a quick let off. Sounds like a race car going into a turn.

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