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Exhaust options

4K views 29 replies 11 participants last post by  geea 
#1 ·
I am thinking of getting an exhaust put on my XR6T and am just wondering what my options are. Obviously APS have an exhaust but according to them you need a Unichip too with the exhaust.. Herrods are an option but is that a specialist turbo exhaust or just a one size fits all exhaust?

Any one done anything to their turbos in terms of exhaust??!
 
#2 ·
I have a Herrod stainless steel cat back exhaust for sale if you are interested. It was on my XR8 but my dad has one on his XR6T and it sounds tough and was good for around 12kw at the wheels. One size does fit all because the XR8 and GT share the same exhaust except for the tips. The APS exhaust is a bit overkill and may bring the boost up to a level where the computer may sense overboost and start cutting the power back.
 
#5 ·
Antony, the factory exhaust is quite good. Unless your going to change the cat and put a much bigger one, in like Brian, your better off just replacing the centre muffler with straight through pipes. Thats all i have done and you heard it on Sunday. If thats too loud you could get a couple of hot dogs put in the pipes. I got mine done at Fastfit in frankston, they do it for about $150. Pm me and i'll link you to a thread i did on it with photo's and everything.


Geea.
 
#6 ·
Interesting Geea, my dad has an XR6T as well and he chopped the middle muffler but it didn't sound that great really. Maybe it is cause he grampa drives it when i am near it! Looks like the middle muffler is going..

Got a quote on an Herrod cat back - $1400 - hmmm maybe not
 
#8 ·
I've heard an XR6T with the centre muffler replaced with some straight pipe and I thought it sounded shit. Maybe my ears are un honed to a weel sounding turbo motor, but damn I just thought it sounded like a ricer on steroids.
 
#10 ·
I've got the Herrod stainless exhaust. It's the same as the XR8 and GT. Mine actually came off a GTP. The owner wanted quad pipes.

I couldn't be happier with it.

There is a bit of a drone around 90kph but it's silent at 110. Sounds great once you put the foot down.

I would have liked the whole APS system but you have to buy the phase II kit to get it.

Di Filippo have complete systems for the XR6T

www.darrendifilippo.com.au
 
#12 ·
XRDREAMING said:
Hi Jamie, that used to be the case however APS sell the exhaust as seperate item now. Keep in mind it flows too freely for the standard ecu and will more than likely cause boost cut without ecu mods.
I had heard that it became a separate item as well but when I looked at buying it I couldn't find a distributer that would sell it separate (the APS system, that is). Di Filippo will sell you a complete stainless system for around $1700+

You also have to look at what you want out of the exhaust. If you want power then go with a full system, keeping in mind the good point that XRDREAMING made and that's, a turbo needs some back pressure to be efficient.

If you just want a deeper, nicer exhaust note then a cat back system is all you need. A stainless system costs a bit more but gives you a deeper note than mild steel.

The beauty of a Herrod system is that when you have it fitted by Ford, you get the reciept by Ford. This helps you explain to your insurance company that it was fitted by Ford.
 
#13 ·
BA GT-HO said:
Interesting Geea, my dad has an XR6T as well and he chopped the middle muffler but it didn't sound that great really. Maybe it is cause he grampa drives it when i am near it! Looks like the middle muffler is going..

Got a quote on an Herrod cat back - $1400 - hmmm maybe not
There will be little if any gain in power of a Herrod system over the option of removing the centre muffler. To remove the centre muffler is $150 with the money you would save over the other options you could almost get an Xede or Unichip fitted.

Geea. :bsr:
 
#14 ·
geea said:
There will be little if any gain in power of a Herrod system over the option of removing the centre muffler. To remove the centre muffler is $150 with the money you would save over the other options you could almost get an Xede or Unichip fitted.

Geea. :bsr:
Except that you could be up for a defect notice for changing the design of the exhaust. Remember you have to comply with EPA laws.
 
#15 ·
And a few cars have gone backwards in power with the centre muffler removed. It only really works on the early turbos as they had a heavily baffled centre muffler which was replaced with a straight through muffler after the first 6 months of production. Its all a bit risky, some work some don't.
 
#16 ·
Jamie XR6 said:
Except that you could be up for a defect notice for changing the design of the exhaust. Remember you have to comply with EPA laws.
If you're concerned with this you can get a hotdog put in to keep the car at the same number of mufflers as standard. The straight through pipes where actually sound tested in Zoom magazine and found to be within the noise limits.

Geea.
 
#17 ·
bossxr8 said:
And a few cars have gone backwards in power with the centre muffler removed. It only really works on the early turbos as they had a heavily baffled centre muffler which was replaced with a straight through muffler after the first 6 months of production. Its all a bit risky, some work some don't.
I have done alot of research on this and have never heard of an XR6T going backwards because the centre muffler was replaced. You may be referring to the rear muffler. I have heard if the rear muffler is replaced that it can cause a slight drop in power, it also changes the way the car sounds. For the worse in my opinion.


Geea.
 
#18 ·
geea said:
I have done alot of research on this and have never heard of an XR6T going backwards because the centre muffler was replaced. You may be referring to the rear muffler. I have heard if the rear muffler is replaced that it can cause a slight drop in power, it also changes the way the car sounds. For the worse in my opinion.


Geea.
Maybe that was what I heard, the XR6T with the rear muffler removed. It sounded shit and apparently a few XR6 Turbos have lost power doing something like that.
 
#19 ·
I specifically remember at least 2 people on the other forums losing power after removing the centre muffler. One guy even got a standard exhaust from Herrods to put back on after it ran like crap and went like a slug. It may work for some people but not for all people. It was never the rear muffler, i've never heard of anyone removing the rear muffler on a XR6T.
 
#20 ·
bossxr8 said:
I specifically remember at least 2 people on the other forums losing power after removing the centre muffler. One guy even got a standard exhaust from Herrods to put back on after it ran like crap and went like a slug. It may work for some people but not for all people. It was never the rear muffler, i've never heard of anyone removing the rear muffler on a XR6T.
I have been doing mods and researching them on the XR6T for along time. I have heard of 1 or 2 poeple taking the centre muffler out and then replacing it latter because they felt it droned. I have also heard of 1 and possibly 2 people that have removed the rear and had bad results. Never heard of bad performance results from removing the centre muffler. Could you post a few links to the peoples threads who say they have lost power through removing the centre muffler. Where these claims backed up by dyno readings / 1/4mile times or just seat of the pants.

Geea.
 
#21 ·
geea said:
I have been doing mods and researching them on the XR6T for along time. I have heard of 1 or 2 poeple taking the centre muffler out and then replacing it latter because they felt it droned. I have also heard of 1 and possibly 2 people that have removed the rear and had bad results. Never heard of bad performance results from removing the centre muffler. Could you post a few links to the peoples threads who say they have lost power through removing the centre muffler. Where these claims backed up by dyno readings / 1/4mile times or just seat of the pants.

Geea.
Doing a search to find the right thread would take forever. All I remember was the guy whos car ran like crap and was a total slug after removing the centre muffler, and then asked if anybody had a standard exhaust to put back on and Herrods said they would help him out and gave him a standard exhaust they had from their stockpile. It may have worked for you and you have the times to back it up but not everybody was happy with it.
 
#23 ·
Well my dad has gone and replaced the centre muffler on his XR6T and put 2 straight through hotdogs in place of the middle muffler and it sounds awesome. With straight through pipe the car sounded a bit too bassy, it really wasn't a 'nice' sound. But with these two hotdogs on now it sounds great, it has taken the edge off the note. It sounds a bit more high pitched too. Total cost was under $250.

I will be doing this to my car shortly because it sounds great and is a lot cheaper than forking out 1000s for a whole system. I will try and get pics of the car afterwards on the hoist.
 
#24 ·
Does anyone know how hard it would be to have the factory exhaust pipe duplicated so as there was a second pipe of the same size coming out of the passanger side of the car? I realise that this going to open the exhaust sytem right up, so what could be done to keep it so as the system was not to free-flowing?

How much would something like this cost?

Maybe, since its the look I'm after, it would be easier just to stick another tip on the passanger side, but doing that without actually having it hooked up to anything just seems lame to me.
 
#25 ·
i dont know were i heard it but someone said the exhausts on the turbo utes are different to the exhausts on the turbo sedans. they also said removing the cetnre muffler didnt work on the sednas but did on the utes can anyone help me as i own a turbo ute and yeah no one in cnaberra in terms of exhaust shows seems to know wats going on any help would be much appreciated and any before and after power and timing figured u guys have would be fantastic
 
#26 ·
dan85 said:
i dont know were i heard it but someone said the exhausts on the turbo utes are different to the exhausts on the turbo sedans. they also said removing the cetnre muffler didnt work on the sednas but did on the utes can anyone help me as i own a turbo ute and yeah no one in cnaberra in terms of exhaust shows seems to know wats going on any help would be much appreciated and any before and after power and timing figured u guys have would be fantastic
Here is a quote from a thread i did ages ago.

On Friday I had a piece made to replace my centre muffler. I now have the choice of centre muffler or straight through twin pipes. All that is needed to change between the 2 is to undo 6 bolts. The new twin pipes looks factory and as has been said before the sound is great. The new pipes cost $150.00 fitted and it took about 90mins to have them custom made.
For those interested in having this done I highly recommend Mike Curtin and his team of experienced exhaust people at FASTFIT in Frankston, Victoria.

Fastfit
15 Wells Rd.
Seaford 3198
Ph. 0397868888
I have the sedan and you can check the rest of my mods HERE

I personally think its a great idea removing the centre muffler and love the engine note the car now has.


Geea.
 
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