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2.5" cat back exhaust system 

 

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 Post subject: 2.5" cat back exhaust system
Posted: Thu Oct 01, 2009 3:23 pm 
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gday guys

im in the market for a new 2.5" cat back exhaust system because ive just found the
one fitted to my car now has 3 holes in it lol... always wondered why it never sounded that good.

the car isnt on the road yet an im after a system with one muffler.

the problem im having at the moment is will having one muffler make it to loud to
get a roadworthy with?

cheers

 

_________________

1995 EF Ford Falcon Fairmont

2.5" Mandrel bent cat back exhaust
Custom intake snorkel
Clarion 6.5" speakers in front
Sony xplod 6x9's on rear parcel shelf
Twin 12" soundstream Subwoofers in boot
500 Watt alpine amplifier


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 Post subject: Re: 2.5" cat back exhaust system
Posted: Thu Oct 01, 2009 4:21 pm 
Smokin em up
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Ride: ED XR6, AUII XR8

Location: Melbourne
VIC, Australia

idno about roadworthys, but the 2.5" i have with one muffler and a hotdog is very drony at about 2200rpm. Annoying on the freeway. I used to have one with a rear muffler instead of the hotdog, it was slightly quieter but didn't have the annoying drone. I'd recomend the dual mufflers:P

 

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AUII XR8, Silhouette, 5-Speed

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 Post subject: Re: 2.5" cat back exhaust system
Posted: Thu Oct 01, 2009 4:23 pm 
Stock as a Rock
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Joined: 29th Nov 2008

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Ride: 95 EF Mont

Location: melbourne
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thanks mate. did it still sound good with the two mufflers or does it sound better with the hotdog...i aint to fussed about a drone i just want it to sound good

 

_________________

1995 EF Ford Falcon Fairmont

2.5" Mandrel bent cat back exhaust
Custom intake snorkel
Clarion 6.5" speakers in front
Sony xplod 6x9's on rear parcel shelf
Twin 12" soundstream Subwoofers in boot
500 Watt alpine amplifier


Image

Top
 Profile  
 
 
 Post subject: Re: 2.5" cat back exhaust system
Posted: Thu Oct 01, 2009 4:29 pm 
Smokin em up
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Age: 27

Posts: 236

Joined: 4th Jan 2009

Ride: ED XR6, AUII XR8

Location: Melbourne
VIC, Australia

i'd say it sounds better with the hotdog, although the engine is a bit healthier than when it had the dual mufflers. Sounds pretty reasonable inside and out, a bit deeper with the hotdog too.

 

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ED XR6, LeMans Red, 5-Speed
AUII XR8, Silhouette, 5-Speed

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 Post subject: Re: 2.5" cat back exhaust system
Posted: Thu Oct 01, 2009 4:36 pm 
Getting Side Ways
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Ride: EDL Fairmont Wagon/AU XR8 Ghia

Location: Riverstone
NSW, Australia

I just bought a 2.5" Redback system with 1 large high flow muffler in front and 1 high flow resonator (not a hotdog) at the back. The sound is a nice burble under normal conditions, nice bark when pushed but still quiet inside. To *me* that sounds good, what sounds "good" to you may be different.

I suggest you hear some 2.5" exhausts in the configurations you are after before deciding on one muffler or a muffler/hotdog combo.

BTW, my system was $350.00 self fit or $480.00 fitted and included clamp, cat gasket and chrome tip.

Cheers
RD

 

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=1994 ED Wagon GLi body/EL Fairmont spec with *ALL* EL running gear.=
Build Thread: viewtopic.php?f=53&t=65695
=1998 EL Futura Sedan - The EF Fairmonts Replacement=
Build Thread: viewtopic.php?f=53&t=106588

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 Post subject: Re: 2.5" cat back exhaust system
Posted: Thu Oct 01, 2009 5:05 pm 
Stock as a Rock
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hey mate,

my ED fairmont has a 2.5 inch exhaust and ive just got the 1 muffler in the middle and the cat in it, not 2 loud but it sounds tough racy as when i put my foot down :) and doesnt drone on the freeway at all which is a bonus
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 Post subject: Re: 2.5" cat back exhaust system
Posted: Thu Oct 01, 2009 9:52 pm 
Getting Side Ways
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Ride: Falcon

Location: Central Highlands
QLD, Australia

2.5in pipe, 1 straight through muffler and hotdog resinator tailpipe section, will not drone on the highway and sound good at idle and when reving it out!

cheers and have a nice day........................

 

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97 EL Fairmont 4l OHC .Silver.
Exhaust: Pacemaker's, 2.5" exhaust and Hiflow cat
Intake: FRAM AIRHOG , EL GT snorkel
XR6 300kpa fuel reg Stg 2 Auto Shift Kit.6DJA ECU
PM in Qld looking too buy Toyota 4*4 SR5 Dualcab Hilux 91-97 with 2.8l diesel engine/5spd manual

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 Post subject: Re: 2.5" cat back exhaust system
Posted: Thu Oct 01, 2009 10:24 pm 
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cheers for the help guys.

i think im going to get one centre muffler and a hotdog in the rear.
and if that still aint good to my liking i will get the dog cut out :) lol.

or i do it the other way and start with the one muffler and see how that goes.

im still undecided to whether im going to put extractors on before
or after roadworthy and rego.

so thats why im trying to decide on the muffler dilemma because if i do it before
roadworthy i dont want to have it to loud that it wont pass

 

_________________

1995 EF Ford Falcon Fairmont

2.5" Mandrel bent cat back exhaust
Custom intake snorkel
Clarion 6.5" speakers in front
Sony xplod 6x9's on rear parcel shelf
Twin 12" soundstream Subwoofers in boot
500 Watt alpine amplifier


Image

Top
 Profile  
 
 
 Post subject: Re: 2.5" cat back exhaust system
Posted: Thu Oct 08, 2009 9:54 am 
Stock as a Rock
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Posts: 124

Joined: 29th Nov 2008

Gallery: 10 images

Ride: 95 EF Mont

Location: melbourne
VIC, Australia

got the exhaust :).

i went with just the centre muffler
i hope it sounds good :)

thanks for the help.

i mite post a video up to show how it sounds if i can be bothered lol

cheers

 

_________________

1995 EF Ford Falcon Fairmont

2.5" Mandrel bent cat back exhaust
Custom intake snorkel
Clarion 6.5" speakers in front
Sony xplod 6x9's on rear parcel shelf
Twin 12" soundstream Subwoofers in boot
500 Watt alpine amplifier


Image

Top
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