Ro CV8 exhaust and modding advice
Discussion
Hello,
I have a completely standard big boot CV8, and having grown a year older, I can now insure a modded Monaro
First on the list is a exhaust of course. A wortec system is about £1k fitted, and most custom exhaust places are quoting £800-£1000 for a mandrel bent catback 2.5 inch system with an x pipe. A rear box delete would be much cheaper of course, but is it as good?
Now this is a fair amount to spend on a £7k car, especially when pre modified Monaros don't cost much extra; eg: this car
I don't plan many other mods apart from an OTRCAI and remap.
So 3 questions;
1) Would an exhaust be a worthwhile mod from a future saleability/ value point of view?
2) Is a back box delete a big compromise compared to a catback if I'm planning a remap as well?
3) Should I just sell up and buy again?
Thanks for any advice/ tips
I have a completely standard big boot CV8, and having grown a year older, I can now insure a modded Monaro
First on the list is a exhaust of course. A wortec system is about £1k fitted, and most custom exhaust places are quoting £800-£1000 for a mandrel bent catback 2.5 inch system with an x pipe. A rear box delete would be much cheaper of course, but is it as good?
Now this is a fair amount to spend on a £7k car, especially when pre modified Monaros don't cost much extra; eg: this car
I don't plan many other mods apart from an OTRCAI and remap.
So 3 questions;
1) Would an exhaust be a worthwhile mod from a future saleability/ value point of view?
2) Is a back box delete a big compromise compared to a catback if I'm planning a remap as well?
3) Should I just sell up and buy again?
Thanks for any advice/ tips
Wortec Cat Back Was the 1st thing on MY list when I was looking for a 'Ro.
The Sound is not intrusive but still Addictive.
No rear Boxes..?
may be rather Boomey (is that a real word 
)to live with, but It's your choice of course...
http://www.youtube.com/watch?v=CSaURAEoMQI
Won't be quite as loud as this, but you get the picture...
The Sound is not intrusive but still Addictive.
No rear Boxes..?
may be rather Boomey (is that a real word )to live with, but It's your choice of course... http://www.youtube.com/watch?v=CSaURAEoMQI
Won't be quite as loud as this, but you get the picture...
The standard big boot CV8 is the one version of the Monaro that benefits the most from a remap.
With a good cat back and a decent remap (cough, Monkfish) your Monaro will jump from ~330 bhp to just shy of 400bhp. I can only imagine this will be very noticeable and good gains for your £.
Yes, its a lot of money to sink into your car, but I think those mods would tempt a buyer to look at yours over a standard one.
You could sell up and buy another one, but what if the new one presents a load of other trouble that could cost just as much to sort?
If it were me, assuming your current CV8 is going strong and proving reliable and you still really like it, I would get the Wortec and remap from MF.
The whole ownership prospect of a Monaro is one of the heart not the head, if you can afford it crack on!
With a good cat back and a decent remap (cough, Monkfish) your Monaro will jump from ~330 bhp to just shy of 400bhp. I can only imagine this will be very noticeable and good gains for your £.
Yes, its a lot of money to sink into your car, but I think those mods would tempt a buyer to look at yours over a standard one.
You could sell up and buy another one, but what if the new one presents a load of other trouble that could cost just as much to sort?
If it were me, assuming your current CV8 is going strong and proving reliable and you still really like it, I would get the Wortec and remap from MF.
The whole ownership prospect of a Monaro is one of the heart not the head, if you can afford it crack on!
Codswallop said:
Hello,
I have a completely standard big boot CV8, and having grown a year older, I can now insure a modded Monaro
First on the list is a exhaust of course. A wortec system is about £1k fitted, and most custom exhaust places are quoting £800-£1000 for a mandrel bent catback 2.5 inch system with an x pipe. A rear box delete would be much cheaper of course, but is it as good?
Now this is a fair amount to spend on a £7k car, especially when pre modified Monaros don't cost much extra; eg: this car
I don't plan many other mods apart from an OTRCAI and remap.
So 3 questions;
1) Would an exhaust be a worthwhile mod from a future saleability/ value point of view?
2) Is a back box delete a big compromise compared to a catback if I'm planning a remap as well?
3) Should I just sell up and buy again?
Thanks for any advice/ tips
Cutting out the rear box will make it drone.I have a completely standard big boot CV8, and having grown a year older, I can now insure a modded Monaro
First on the list is a exhaust of course. A wortec system is about £1k fitted, and most custom exhaust places are quoting £800-£1000 for a mandrel bent catback 2.5 inch system with an x pipe. A rear box delete would be much cheaper of course, but is it as good?
Now this is a fair amount to spend on a £7k car, especially when pre modified Monaros don't cost much extra; eg: this car
I don't plan many other mods apart from an OTRCAI and remap.
So 3 questions;
1) Would an exhaust be a worthwhile mod from a future saleability/ value point of view?
2) Is a back box delete a big compromise compared to a catback if I'm planning a remap as well?
3) Should I just sell up and buy again?
Thanks for any advice/ tips
How about cutting out the front box, and adding an 'X' of 'H' pipe instead? lincsls2 said:
The standard big boot CV8 is the one version of the Monaro that benefits the most from a remap.
With a good cat back and a decent remap (cough, Monkfish) your Monaro will jump from ~330 bhp to just shy of 400bhp. I can only imagine this will be very noticeable and good gains for your £.
Yes, its a lot of money to sink into your car, but I think those mods would tempt a buyer to look at yours over a standard one.
You could sell up and buy another one, but what if the new one presents a load of other trouble that could cost just as much to sort?
If it were me, assuming your current CV8 is going strong and proving reliable and you still really like it, I would get the Wortec and remap from MF.
The whole ownership prospect of a Monaro is one of the heart not the head, if you can afford it crack on!
I'm aware of the potential gains from a remap on these early cars, hence I want a good exhaust.With a good cat back and a decent remap (cough, Monkfish) your Monaro will jump from ~330 bhp to just shy of 400bhp. I can only imagine this will be very noticeable and good gains for your £.
Yes, its a lot of money to sink into your car, but I think those mods would tempt a buyer to look at yours over a standard one.
You could sell up and buy another one, but what if the new one presents a load of other trouble that could cost just as much to sort?
If it were me, assuming your current CV8 is going strong and proving reliable and you still really like it, I would get the Wortec and remap from MF.
The whole ownership prospect of a Monaro is one of the heart not the head, if you can afford it crack on!
Good point about the risk you run when changing cars - this one has a comprehensive service history and a clean bill of health from Holden racing, plus I've already had some adventures with this car
Thanks everyone for the advice to not remove the rear silencer. I thought it was the middle ones that did all of the silencing since the standard US market GTO doesn't have a rear box, but maybe the rest of the system is different too.
There appears to be lots of different design layouts. I know that for example Borla and Magnaflow systems are the same as the above, but that the Wortec and Milltek exhausts have a back box, but no middle resonantors
There appears to be lots of different design layouts. I know that for example Borla and Magnaflow systems are the same as the above, but that the Wortec and Milltek exhausts have a back box, but no middle resonantors
The Wortec system for the 04 CV8 gives you the option of retaining both middle & rear silencers (quiet) or just the rear box (loud). I've run mine in loud since purchase 2 years ago & it sounds great - just waiting for the headers to turn up to go with it.
Edited by JoyCV8 on Monday 17th March 20:39
JoyCV8 said:
The Wortec system for the 04 CV8 gives you the option of retaining both middle & rear silencers (quiet) or just the rear box (loud). I've run mine in loud since purchase 2 years ago & it sounds great - just waiting for the headers to turn up to go with it.
Be interested to know how this goes as I'm thinking about this on mine too....Edited by JoyCV8 on Monday 17th March 20:39
I have a CV8 and what i did was get a second hand Wortec from a kind forum member and then had headers and cats fitted at AAS at a cost of around £1000 many years back and got them to remove the center boxes.
And i got this.
https://www.youtube.com/watch?v=5XSDjLmIYro
And i got this.
https://www.youtube.com/watch?v=5XSDjLmIYro
StuRo said:
Codswallop,
Have you taken the plunge with this yet? I'm desperately keen to hear how it went if you did! (Ie. Replacing front boxes with x pipe)?
As you've said, there are a number of different designs so it's hard to know what to expect without experimenting!
Hi,Have you taken the plunge with this yet? I'm desperately keen to hear how it went if you did! (Ie. Replacing front boxes with x pipe)?
As you've said, there are a number of different designs so it's hard to know what to expect without experimenting!
I found a complete 5.7 VXR system on ebay and had that fitted just after this thread. This included tubular shorty manifolds, and the rest of the exhaust was modified with smaller centre boxes and no rear boxes. Sounds good but a bit too loud for my taste, and only really boomy in top gear at cruising speed (which is mildly irritating to say the least).
Sorry I can't help with any experience of modding the standard CV8 system. I was informed that long pipe runs can cause boominess, so might not be a good idea to entirely remove the rear boxes.
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