is it worth decatting the standard exhaust?

[Chris197F1]

So is it worth getting a decat for the standard exhaust system? I will be getting the car mapped in June (RS Tuning Group Buy) so wondered if it would be a good investment?

Thanks all!

 

[Roy]

A lot of people have

 

[Chris197F1]

is that what this 'Y' pipe is?

 

[Willis]

Y Pipe deletes the first (more effective/restrictive) Cat which is in the collector for the Manifold.

The Cat in the exhaust (under the car) isn't all that restrictive. A normal De-Cat will remove this one but the one in the Manifold will remain.

The one in the Manifold has more influence on emissions than the other one and people have passed MOTs with just this one in place.

Removing either may result in your flat spot becoming more prominent. You'll get a bit more rasssssp to the exhaust note but don't expect major power gains...

 

[henderson]

i'd say its worth it mate for the noise alone,not sure of any gains as i fitted other stuff at the same time but i've read gains are minimal

 

[martinclarkie]

i can highly recommend having a de cat too, ye i get flat spots but thats part of the reason why I'm also getting it remapped, the sound is amazing, i love it so much.

 

[Chris197F1]

Did you get the Y pipe Martin?

 

[Mike1pow]

Would all decats fit with the std exhaust?

 

[Fernandez]

Would all decats fit with the std exhaust?

Not sure in that, I think most aftermarket exhaust are larger in diameter..

 

[Mike1pow]

Demon tweaks offer the milltek decay for £55 fitted. Might be worth a punt

 

[jostheboss]

That's not bad for demon thieves!! Is that at Wolverhampton still?

 

[Mike1pow]

It's Wrexham, north Wales. Not too far from me

 

[greeni197]

Get the full system mike..

 

[smoggy mark]

May be worth getting a decat pipe,for £50-£60 think i will be getting one before a MAP.

 

[Chris197F1]

im confused as to what I actually need now lol

 

[N0ddie]

Lol. Depends what yer after. Willis posted the best info:

Y Pipe deletes the first (more effective/restrictive) Cat which is in the collector for the Manifold.

The Cat in the exhaust (under the car) isn't all that restrictive. A normal De-Cat will remove this one but the one in the Manifold will remain.

The one in the Manifold has more influence on emissions than the other one and people have passed MOTs with just this one in place.

Removing either may result in your flat spot becoming more prominent. You'll get a bit more rasssssp to the exhaust note but don't expect major power gains...

 

[smoggy mark]

http://www.k-tecracing.com/search_results.asp

 

[Chris197F1]

so for most gains I need the Y pipe then?

 

[smoggy mark]

so for most gains I need the Y pipe then?

yes but this is a big job as for the 2nd decat job is easy on and of and be a lot cheaper.

 

[chappers]

Can any old exhaust place fab one up?