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Another exhaust question thread :)

Hi guys,

I'm considering swapping my back box for something like CSC or Supersprint, to unleash the 3 litre v6 that's lying under my car's bonnet, but haven't really decided which one to choose from yet. I'm looking for something a bit more "hearable" but not too loud, mainly because of the missus... But my main question is, in terms of sound what are the differences between a Stainless Steel box and a regular Steel one?
I know the SS ones will virtually last forever, because it won't rust, but I also understand the sound is different between the two. Can anyone give me a hand here, please?

Plus, what are your opinions on the CSC boxes? Are they as good as Supersprint?

Thanks in advance!
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Steel is smoother, stainless is raspier / more resonant. That is the essential difference in the materials, but so much also comes down to type & style of construction. As far as I know there isn't a steel & stainless steel version of the same backbox though, so no possibility of doing a back-to-back comparison.

My old 3 litre (RIP ):

https://www.youtube.com/watch?v=2e3swNkupSY
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Originally Posted by Pud237 View Post
Steel is smoother, stainless is raspier / more resonant. That is the essential difference in the materials, but so much also comes down to type & style of construction. As far as I know there isn't a steel & stainless steel version of the same backbox though, so no possibility of doing a back-to-back comparison.

My old 3 litre (RIP ):

https://www.youtube.com/watch?v=2e3swNkupSY
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Originally Posted by bernas68 View Post
Hi guys,

I'm considering swapping my back box for something like CSC or Supersprint, to unleash the 3 litre v6 that's lying under my car's bonnet, but haven't really decided which one to choose from yet. I'm looking for something a bit more "hearable" but not too loud, mainly because of the missus... But my main question is, in terms of sound what are the differences between a Stainless Steel box and a regular Steel one?
I know the SS ones will virtually last forever, because it won't rust, but I also understand the sound is different between the two. Can anyone give me a hand here, please?

Plus, what are your opinions on the CSC boxes? Are they as good as Supersprint?

Thanks in advance!
CSC:

https://www.youtube.com/watch?v=W1ZkfRT93yA
https://www.youtube.com/watch?v=NGdVeCLWq1I
https://www.youtube.com/watch?v=Udd48h1d1s0
https://www.youtube.com/watch?v=q_kFa0iI_LE
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(Post Link) post #5 of 12 Old 27-08-15 Thread Starter
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Quote:
Originally Posted by Pud237 View Post
Steel is smoother, stainless is raspier / more resonant. That is the essential difference in the materials, but so much also comes down to type & style of construction. As far as I know there isn't a steel & stainless steel version of the same backbox though, so no possibility of doing a back-to-back comparison.

My old 3 litre (RIP ):

https://www.youtube.com/watch?v=2e3swNkupSY
Wow!
Thanks Pud, I believe you covered the sound question perfectly!
Based on that, I think I'll take a look at steel boxes and try and stay away from the rain...

About that ol' 3 litre of yours, Jasus that was a screaming girl you had there!
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Thanks for the videos Flavalava, they were quite explicit!

I'd already seen the Dutch Grigio one, but didn't remember... It must be an awesome car.

Didn't know the 2,5V6 one. It sounds interesting...
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Its usually moisture that condenses inside the exhaust as it cools, and water vapour from other contaminants from petrol combustion that rots out steel exhausts, I wouldn't worry so much about the rain! A lick of paint on the outside will do a good job of protecting a steel exhaust but it'll always fail from the inside out.
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What about the quality, guys?
Is it as good, better or worse than Supersprint?

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Originally Posted by Pud237 View Post
Its usually moisture that condenses inside the exhaust as it cools, and water vapour from other contaminants from petrol combustion that rots out steel exhausts, I wouldn't worry so much about the rain! A lick of paint on the outside will do a good job of protecting a steel exhaust but it'll always fail from the inside out.
That's why you're not supposed to do short drives on a regular basis, right?
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In my experience, CSC are OK, perhaps not quite as good as Supersprint.. One of my old cars had a CSC backbox and after around 8 years service it was starting to get a bit rattly. They are cheaper though.
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Great!
This is exactly what I was looking for.

Thanks Pud!



Another thought that's been on my mind: instead of going aftermarket what if I'd go for an original GTA exhaust?
Would it be better than the original v6?
Would it be a straight fit?

Sorry about all these questions, but I would really like to get it spot on.

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GTA exhaust is largely the same fitment, so except for a couple of things it fits. You will need to sleeve it down a little where it joins the cat, or slot the bolt holes. Also, the GTA has a deeper rear bumper which has a cut-out for the exhaust that is further over to the left than a standard rear bumper. So the exhaust will look a little low and over to the left, you'll be able to adjust away some of this.

If you can find a good GTA exhaust then I would go for it, they sound great on a CF2 V6 especially with a mid decat.

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