HFP EXHAUST VS. STOCK SI

pampass_pmw · 06-08-2007, 07:59 AM

Is there much diff. in the two systems that would make it worth getting the hfp. or just go aftermarket?

cashdealer07 · 06-08-2007, 08:21 AM

i'd like to know the answer to this as well. i have an ex & i have a friend whos sellin her old catback to her si & im gonna put it on my ex

Michael Bolton · 06-08-2007, 08:21 AM

Quote:

Originally Posted by pampass_pmw

Is there much diff. in the two systems that would make it worth getting the hfp. or just go aftermarket?

No HFP just has a better sound to it than a stock Si muffler. If you want better performance go aftermarket.

pampass_pmw · 06-08-2007, 08:48 AM

Quote:

Originally Posted by Michael Bolton

No HFP just has a better sound to it than a stock Si muffler. If you want better performance go aftermarket.

That means that is prob flows better ie make more power! That would be my take on that. I am looking for facts not so much opinions.

TypeRBoy · 06-08-2007, 08:54 AM

There is no increase in piping diameter, still have the factory resonator, muffler is physically smaller and stainless steel. NO PERFORMANCE GAINS, only audible.....

IT GUY · 06-08-2007, 08:56 AM

Quote:

Originally Posted by pampass_pmw

That means that is prob flows better ie make more power! That would be my take on that. I am looking for facts not so much opinions.

HFP is only an axleback setup, just because 18 inches of pipe and a muffler are swapped out doesn't mean you'll gain any power... It's not designed to make any more power, it's designed to look cool, be shiny, and sound a little louder and deeper..

any flow increase or hp gains would be incedental

WILD_WILL · 06-08-2007, 08:58 AM

Quote:

Originally Posted by IT GUY

HFP is only an axleback setup, just because 18 inches of pipe and a muffler are swapped out doesn't mean you'll gain any power... It's not designed to make any more power, it's designed to look cool, be shiny, and sound a little louder and deeper..

any flow increase or hp gains would be incedental

Thats all you need to know

accordselux · 06-08-2007, 08:58 AM

Axleback won't do much at all, the only change is if the muffler is straight through instead of chambered, and it's not.

You'd be better off going with an all stainless steel exhaust system with slightly bigger piping and a straight through muffler. If you plan on driving it on the street, make sure it has a resonator in the pipe as well as a muffler. That will keep the noise down.

TypeRBoy · 06-08-2007, 09:04 AM

I would love to know what my HFP muffler would sound like w/ the resonator eliminated. I have thought about taking it to my local muffler shop and having them put a pipe in place of the resonator since I got it, but I would hate if it made the tone sound all raspy and obnoxious.

pampass_pmw · 06-08-2007, 09:11 AM

Thanks guys.

FG2 chilotz · 06-08-2007, 03:08 PM

Quote:

Originally Posted by pampass_pmw

Thanks guys.

x2
I will be keeping my stock Si catback. You guys saved me from spending $$$$

06-08-2007, 07:59 AM	#1
pampass_pmw Junior Member 2006 Honda Civic Join Date: Jun 2006 Location: Conway, SC Posts: 116 iTrader Rating: (0)	HFP EXHAUST VS. STOCK SI Is there much diff. in the two systems that would make it worth getting the hfp. or just go aftermarket? __________________ FG2 06 Civic SI w/Navi Habanero Red (current) 93 Civic coupe (beater) 90 Integra XSI swap. (sold)

06-08-2007, 08:21 AM	#2
cashdealer07 Junior Member Garage is empty, add now Join Date: May 2007 Location: The Ham, AL, USA Posts: 252 iTrader Rating: (0)	Re: HFP EXHAUST VS. STOCK SI (pampass_pmw) i'd like to know the answer to this as well. i have an ex & i have a friend whos sellin her old catback to her si & im gonna put it on my ex __________________ FG Squad - *#344* 2oo6 White CiviC EX R.I.P - <U>Totalled</U> New Ride: 2oo6 Drk Grey Accord Coupe 4cyl 5spd

06-08-2007, 08:54 AM	#5
TypeRBoy Honda-Tech Member Garage is empty, add now Join Date: Nov 2000 Location: Weirton, WV, USA Posts: 171 iTrader Rating: (0)	Re: HFP EXHAUST VS. STOCK SI (pampass_pmw) There is no increase in piping diameter, still have the factory resonator, muffler is physically smaller and stainless steel. NO PERFORMANCE GAINS, only audible.....

06-08-2007, 09:04 AM	#9
TypeRBoy Honda-Tech Member Garage is empty, add now Join Date: Nov 2000 Location: Weirton, WV, USA Posts: 171 iTrader Rating: (0)	Re: HFP EXHAUST VS. STOCK SI (accordselux) I would love to know what my HFP muffler would sound like w/ the resonator eliminated. I have thought about taking it to my local muffler shop and having them put a pipe in place of the resonator since I got it, but I would hate if it made the tone sound all raspy and obnoxious.

06-08-2007, 09:11 AM	#10
pampass_pmw Junior Member 2006 Honda Civic Join Date: Jun 2006 Location: Conway, SC Posts: 116 iTrader Rating: (0)	Re: HFP EXHAUST VS. STOCK SI (pampass_pmw) Thanks guys. __________________ FG2 06 Civic SI w/Navi Habanero Red (current) 93 Civic coupe (beater) 90 Integra XSI swap. (sold)

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HFP EXHAUST VS. STOCK SI