Oh no, it's another what exhaust thread!!!
Oh no, it's another what exhaust thread!!!
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Discussion

ILoveMondeo

Original Poster:

9,614 posts

242 months

Friday 26th July 2013
quotequote all
Sorry, I know this has been done to death, but with all the wealth of information in past thread I'm not completely confused.

The tuscan is 100% standard, cats, back boxes, cans, etc.

I'm not really wanting it to be much louder, nor am I too bothered about much more in the way of pops and bangs (I like the muffled pop they make now)...

What I would like is the general tone to be a little deeper though.

Whats the best route, part sleeve cans? replace the whole system with a larger bore?

Or just stop being a fanny, decat and sleeved cans?

(BTW, whilst I'd like to decat to save the gearbox and my left hand all that heat changing them out every year for MOT would be a ball-ache)

Thanks!

wongthecorrupter

2,632 posts

187 months

Friday 26th July 2013
quotequote all
had mine on the c.o machine the other day,its decatted and it was 0.47 on the co reading,not sure how low it has to be to pass a mot

ILoveMondeo

Original Poster:

9,614 posts

242 months

Saturday 27th July 2013
quotequote all
wongthecorrupter said:
had mine on the c.o machine the other day,its decatted and it was 0.47 on the co reading,not sure how low it has to be to pass a mot
Hi!

If that's a percentage figure you've got there then that's a fail I think.

I'm pretty sure it's 0.3% or lower at idle to pass.


Toady1

1,621 posts

240 months

Saturday 27th July 2013
quotequote all
Go for the ACT large bore system, should give you some more power too.

Basil Brush

5,354 posts

279 months

Saturday 27th July 2013
quotequote all
Decat is worth the hassle IMO. I'd start with that and then see what you think and go from there.

ILoveMondeo

Original Poster:

9,614 posts

242 months

Saturday 27th July 2013
quotequote all
Toady1 said:
Go for the ACT large bore system, should give you some more power too.
Is that a cat back system?

ILoveMondeo

Original Poster:

9,614 posts

242 months

Saturday 27th July 2013
quotequote all
Basil Brush said:
Decat is worth the hassle IMO. I'd start with that and then see what you think and go from there.
I suppose the straight through pipes aren't mega bucks so if I don't like it I can always pop the cats backs and flog the pipes.

Just about to pop the car up on some ramps to have a nosey and see how easy the cat swap looks.

ILoveMondeo

Original Poster:

9,614 posts

242 months

Saturday 27th July 2013
quotequote all
After much faffing around we couldn't get it on his ramps, it's too low!

MrChips

3,288 posts

226 months

Saturday 27th July 2013
quotequote all
I've tried many a different configuration on my mk2 S (albeit with different aims) but from my experience it's the end cans that make the most difference to the tone.
If you just want to make it deeper, and not louder, then try the ACT stainless end cans. They were actually too deep for me but that's down to mine being decatted.
If the end cans still don't do what you're after then go for the decat.

I've got the act full catback system and it didn't change the tone but did get rid of the droning that I was experiencing. Now with decat, act system, and ccc's, it's v.loud but wouldn't be what I consider deep.

You're welcome to pop down to Reading to have a listen, or why not pop down to the Berkshire meet on the 20th Aug as there's normally quite a few to listen to!

Toady1

1,621 posts

240 months

Sunday 28th July 2013
quotequote all
I might pop down then in mine too Dave!

ILoveMondeo

Original Poster:

9,614 posts

242 months

Sunday 28th July 2013
quotequote all
I think coming along to the Berkshire meet makes a lot of sense!

I'm guessing its a TVR Car Club jobbie?

ETA balls... Im in Northumberland on the 20th for work.

The next thunder in the tunnels looks like the next meet I will be at

Edited by ILoveMondeo on Sunday 28th July 16:34


Edited by ILoveMondeo on Sunday 28th July 16:35

robsco

7,875 posts

192 months

Sunday 28th July 2013
quotequote all
I've tried a few combinations:

Standard with cats - Lovely engine note but nowhere near enough volume.
Standard with decats - Very little difference, overrun still too muffled and volume barely increased.
CCCs with decats - Much better, still quite tinny. Overrun hilarious.
CCCS with decats and backboxes removed - Far deeper note, much meatier. Loses the rasp but does resonate when coming off the gas circa 3000rpm. Oh, and for 95% of owners, probably far too loud. I have grown to adore it and won't be changing back.


AlanQ

209 posts

300 months

Monday 29th July 2013
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Just had my Tusc MOT'd today and the tester told me that the regs changed a couple of months ago so regardless of emissions they also have to check whether the cat is present. I was thinking about going de-cat but it seems too much hassle if I've got to re-fit them every MOT time.

scotty_d

6,795 posts

210 months

Monday 29th July 2013
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I am on CCC cans with act de cats it make my ears hurt if pressing on with the roof off. smile

ILoveMondeo

Original Poster:

9,614 posts

242 months

Monday 29th July 2013
quotequote all
scotty_d said:
I am on CCC cans with act de cats it make my ears hurt if pressing on with the roof off. smile
Haha, precisely what I'm not trying to achieve! smile

I remember a few years back at one of the TitT runs, it was a toss up between a griff and an interloping rs6 both with crazy loud exhausts. Was seriously painful when they drove past in a tunnel! Hillarious but not something I could live with! smile

ILoveMondeo

Original Poster:

9,614 posts

242 months

Monday 29th July 2013
quotequote all
scotty_d said:
I am on CCC cans with act de cats it make my ears hurt if pressing on with the roof off. smile
Haha, precisely what I'm not trying to achieve! smile

I remember a few years back at one of the TitT runs, it was a toss up between a griff and an interloping rs6 both with crazy loud exhausts. Was seriously painful when they drove past in a tunnel! Hillarious but not something I could live with! smile

m4tti

5,479 posts

171 months

Monday 29th July 2013
quotequote all
AlanQ said:
Just had my Tusc MOT'd today and the tester told me that the regs changed a couple of months ago so regardless of emissions they also have to check whether the cat is present. I was thinking about going de-cat but it seems too much hassle if I've got to re-fit them every MOT time.
Apart from the emmission levels I wonder how the tester would for example, know if you have a decat or empty cat casing from the exterior?

scotty_d

6,795 posts

210 months

Monday 29th July 2013
quotequote all
ILoveMondeo said:
Haha, precisely what I'm not trying to achieve! smile

I remember a few years back at one of the TitT runs, it was a toss up between a griff and an interloping rs6 both with crazy loud exhausts. Was seriously painful when they drove past in a tunnel! Hillarious but not something I could live with! smile
It is very civilised under 4k but as said loud when playing. Hmmmm must be getting old as I have went out my way to make the cebera quite. Just leaving the Tuscan as is, I nearly got a section 59 ( asbo) a few weeks ago for giving it some under a bridge. ( woops)

AlanQ

209 posts

300 months

Monday 29th July 2013
quotequote all
m4tti said:
AlanQ said:
Just had my Tusc MOT'd today and the tester told me that the regs changed a couple of months ago so regardless of emissions they also have to check whether the cat is present. I was thinking about going de-cat but it seems too much hassle if I've got to re-fit them every MOT time.
Apart from the emmission levels I wonder how the tester would for example, know if you have a decat or empty cat casing from the exterior?
Not sure to be honest, he just said it was a recently introduced change in the procedure they're supposed to follow.

ILoveMondeo

Original Poster:

9,614 posts

242 months

Monday 29th July 2013
quotequote all
scotty_d said:
It is very civilised under 4k but as said loud when playing. Hmmmm must be getting old as I have went out my way to make the cebera quite. Just leaving the Tuscan as is, I nearly got a section 59 ( asbo) a few weeks ago for giving it some under a bridge. ( woops)
Haha, good work! smile you hoodie yob!