fiestaturbo.com

[Smo]

As I'm now using a later shell for my track car, I'll need to run a cat within the next 12 months for the MOT. Now this could work in my favour as my last sound test at Castle Combe was bang on the limit of 100db (if I remember rightly!).

If I was to add a 200 cell sport cat to the system, is this likely to quieten the system at all? If it does, then I can retain the current system (which sounds great on track ) without risk of failing my next sound test.

Otherwise, I'm going to have to change the system for quite a boring sounding Magnex again

Cheers!

[Excursion]

Compared to a non-cat equipped exhaust, yes, a 200 cell will make a noticeable difference.

100 cell is when things start getting negligible in terms of sound and smell.

[Smo]

That's what I wanted to hear

Cheers, Mark!

[FRSJON]

i fitted a 100 cell race cat to MANJ as it didnt have one.. made no difference to noise...or emissions lol

[Smo]

Eek! I'll give the 200 cell one a go, then!

[MK4 Rick]

Are these 200 cell cats expensive?

[Smo]

I think most I've seen are just under £100. I've changed the exhaust now for my next track day and will worry about the cat later in the year!

[MK4 Rick]

Are the cheap cats any good?And are you running a decat system

[Smo]

Not sure, but I believe the Magnaflow sports cats on eBay are OK.

I'm running a Tony Law 4-2-1 manifold that never had a cat. It was connected to a single box system but for the moment I've changed it to a 2.25" Magnex FRST two box system to get me through the sound test. I miss the noise a bit, but the Zetec with the turbo Magnex actually sounds very different to a normal smaller 16v Magnex... I quite like it!

[MK4 Rick]

Have you any pics of your exhaust set up and tail pipe.Do you use your fiesta as a daily and what are your noise levels like now

[Smo]

All I've got is:





I don't use it as a daily, no, it's purely to replace my other Fiesta track car. But compared to how it sounded before, it's incredibly quiet

[MK4 Rick]

Sounds nice do you get any torque steer.Ive got the mk4 fiesta with a 2 litre blacktop in it

[Smo]

Not in that one I didn't, but the new one that everything has been put into, I do. However I've gone over to FRST wishbones and not done the tracking yet, so it's all over the place!