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Exhaust Modification


JkRossST
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Hi All!

I'm thinking about getting a Full System Exhaust for my ST (probably go for Miltek) but I was wondering that if I change my exhaust do I need to get a sport-cat? & if I do how will this affect the car when it comes to the MOT?

Any advice is appreciated!

Thanks

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Hi All!

I'm thinking about getting a Full System Exhaust for my ST (probably go for Miltek) but I was wondering that if I change my exhaust do I need to get a sport-cat? & if I do how will this affect the car when it comes to the MOT?

Any advice is appreciated!

Thanks

sports cars on track don't use catalysts

a sport's cat is designed for track day cars which drive on the road to the track.

They will give maximum performance while keeping it road compliant

Best to get a brand name one to ensure it's been tested and proven results.

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So with a full system exhaust I just keep the original cat?

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So with a full system exhaust I just keep the original cat?

The normal upgrade kits are cat back systems,

This means they replace everything from the standard catalyst back to tip.

For optimum performance I would fit a 200cell catalyst as well it will be road compliant as well as cause less restriction in exhaust flow which will allow your turbo to spool faster.

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Ahh right ok

Well I was thinking of installing this system..

post-69616-0-34271000-1446141862_thumb.j
or am I better off getting one with a cat already on it?
post-69616-0-77912800-1446141552_thumb.j
sorry if I'm repeating myself, I just want to make sure I get it right.

post-69616-0-77912800-1446141552_thumb.j

post-69616-0-34271000-1446141862_thumb.j

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Ahh right ok

Well I was thinking of installing this system..

or am I better off getting one with a cat already on it?

sorry if I'm repeating myself, I just want to make sure I get it right.

no problem mate,

I understand it's alot of money and you want to be sure your getting optimum value for what you want.

I've been in your position before few times ☺

The picture with puma speed logo on it is a cat back

doesn't have cat with the kit.

The second image has an additional box

it looks more like a pre-silencer rather than a high flow cat worth checking its a cat prior to purchase,

Id personally only purchase a catalyst brand new because if a second hand one has been damaged in any way you won't know until it fails MOT on emissions.

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If you're fiesta model is an ST 180

Then here is a miltec 200cell high flow catalyst on puma speed website.

link: http://www.pumaspeed.co.uk/product-Milltek-Sport-Fiesta-ST180-Hi-Flow-Sport-Cat-200-cell_16028.jsp&pic=2

The above cat along with the cat back exhaust would make a full turbo back systems.

You could then complete it with a manifold upgrade at later date but neither are essential however they do increase performance.

Link to manifold:

http://www.pumaspeed.com/product-Fiesta-ST180-Quickspool-Tubular-Manifold_16197.jsp

All depends on how long you plan to keep the car really and how much you want to spend etcetera.

If keeping car for life then do all three upgrades as funds allow as you will benefit greatly a full exhaust upgrade will compliment any other modification you do.

But if selling in two or three years then just fit the cat back looks good and sounds good 👍

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I cant thank you enough mate, you have been more than helpful and have really explained it all so that I can understand (being a newbie that's a hard task haha)

Thank you for finding the links, I now have something to look for and to compare.

I plan on having the car for a while, maybe even life! If you look after a car then the car will look after you :)

Again, thank you, you've really helped!

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I cant thank you enough mate, you have been more than helpful and have really explained it all so that I can understand (being a newbie that's a hard task haha)

Thank you for finding the links, I now have something to look for and to compare.

I plan on having the car for a while, maybe even life! If you look after a car then the car will look after you :)

Again, thank you, you've really helped!

ah no problem atall thanks,

I've got my Ford five years now and I'm almost finished working on it,

I'm too keeping it for life, responds well to the mods 👍

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As soon as I buy and install these mods I'll post them up on here so you can see the progression.

That quickspool manifold looks a fierce piece of kit!! haha

I think I'm going to go for the cat back system exhaust first and then save up for the 200cell cat and then go for the manifold.

Obviously its going to take some time to buy and install them, but that's all part of the fun!

What you think?

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As soon as I buy and install these mods I'll post them up on here so you can see the progression.

That quickspool manifold looks a fierce piece of kit!! haha

I think I'm going to go for the cat back system exhaust first and then save up for the 200cell cat and then go for the manifold.

Obviously its going to take some time to buy and install them, but that's all part of the fun!

What you think?

I think you're going the right way about it mate,

Upgrading the exhaust from the tail pipe towards the engine is the way id begin to do it too.

The manifold does look sweet,

It would need the exhaust and 200cell catalyst in place in order for it to achieve its potential.

I wouldn't be surprised if some people were to fit the manifold to a standard cat back system then give the manifold bad reviews.

but that wouldn't be true as it's free flowing to the point of the next stock item.

I'd also like to mention;

If you do alot of motorway driving or on roads at continuous speeds,

Then you may consider the pre-silencer in the exhaust,

A pre-silencer is free flowing inside it doesn't restrict any flow; it reduces noise from around that area of the exhaust which corresponds with the centre console inside the vehicle.

reducing the constant bore noise that will drive you insane on long journeys.

The rear end will still sound sporty as normal but inside the cabin will be more muffled like it is at present.

Finally then if your starting to document progress then perhaps start a build thread in the relevant section of the forum.

Here's mine:

http://www.fordownersclub.com/forums/topic/41443-taking-oval-to-blue-horizon-lennys-build-thread-2010-2013/

Five years of progress,

Images should return on Sunday 1st November, photobucket have stopped displaying because of people downloading my images to excess of 10GB within the month of October 😀

so photobucket want me to pay money to display again before month end.

I used to pay like $5 dollars per month but not anymore

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If the manifold doesn't work without the cat back exhaust and the cat then I'm definitely going at it the right way lol

No I'm hardly on the motorway or high speeds roads mate, I live in Wales, mountains and sharp turns everywhere!! haha

Yeah I might just do that, be nice to get advice on other ST users.

I cant wait for your photos to come back online, looks like you got a fair few uploaded.... :D

So is it the cat or the manifold which will produce more bhp?

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If the manifold doesn't work without the cat back exhaust and the cat then I'm definitely going at it the right way lol

No I'm hardly on the motorway or high speeds roads mate, I live in Wales, mountains and sharp turns everywhere!! haha

Yeah I might just do that, be nice to get advice on other ST users.

I cant wait for your photos to come back online, looks like you got a fair few uploaded.... :D

So is it the cat or the manifold which will produce more bhp?

thanks I've created over 30 Guides in the process some would also be possible in your fiesta such as dual camera DVR system and rear footwell lighting, additional boot light, sparco tow strap as boot door interior grab handle etcetera.

Link: http://www.fordownersclub.com/forums/topic/68214-full-list-lennys-guides/

Alot of people download the guides which eats up data allowance on photobucket.

Anyway

I reckon the sports cat will be most noticeable upgrade after the catback exhaust.

The manifold will give an increase but I can't see it giving as much gains as the 200 cell catalyst.

Also after fitting the manifold;

The demand will be on your induction filter to provide free flowing to the turbo so an induction upgrade would be the way forward after the exhaust.

Then an ecu remap

It's a magical journey mate

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I think me and you are going to be talking a lot more when I read these guides!! lol

yeah mate an induction kit and remap are all part of the mods I got planned, such as a bigger intercooler, lowering springs, silicone hoses and a lot of little details. Im planning on it getting wrapped in Matte Black too!

Having a thread will be nice to show everyone my creativity :) haha

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On 10/29/2015 at 9:10 PM, JkRossST said:

I think me and you are going to be talking a lot more when I read these guides!! lol

yeah mate an induction kit and remap are all part of the mods I got planned, such as a bigger intercooler, lowering springs, silicone hoses and a lot of little details. Im planning on it getting wrapped in Matte Black too!

Having a thread will be nice to show everyone my creativity :) haha

no problem mate,

it's gonna look awesome

Happy to help and I prefer to respond to questions on the open forum such as this where other readers can learn or share input as well as yourself,

I'm also a parent of three kids I'm not generally on here as much as i used to be like 24/7 and since my build is more/less complete

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Yeah I agree mate, much better with questions being answered in open forums, I've read a lot of forums where other people have asked questions which I needed answering to, just saves a lot of time & hassle.

Talking about kids when I do get the cat back exhaust I might get a pre-silencer, I got a 2 year old & she will never get to sleep with that noise rumbling through the inside of the car lol

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Yeah I agree mate, much better with questions being answered in open forums, I've read a lot of forums where other people have asked questions which I needed answering to, just saves a lot of time & hassle.

Talking about kids when I do get the cat back exhaust I might get a pre-silencer, I got a 2 year old & she will never get to sleep with that noise rumbling through the inside of the car lol

I'd fit a pre-silencer then mate,

The only thing it reduces is cabin noise and well worth it.

I've also got two audio profiles set up in the car,

One for when I'm on my own and one for the kids in the car lol

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So pre-silencer won't affect emissions or anything? Just hope that extra box will fit nicely under the car!

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So I was thinking maybe something like this?

post-69616-0-06109000-1446165643_thumb.j

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So pre-silencer won't affect emissions or anything? Just hope that extra box will fit nicely under the car!

No it won't effect emissions or anything the pre-silencer also known as a resonator is just like a layer of lagging or insulation surrounding a straight pipe,

There available in all shapes and sizes,

where they can't be fat they make them long,

Here's mine on 2.5" Piper Performance Stainless Steel duplex

Image2306_zps15bf0ddc_edit_1437762744775

Image2308.jpg

Image2316_edit_1437763496754_zpsfr5tw6qb

So I was thinking maybe something like this?

attachicon.gifimage.jpeg

That looks spot on 100% mate,

it's sure to fit since there selling as a kit too.

Your stock exhaust will have resale value aswell if selling on eBay etc.

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Ahh so that's what resonated means! I was wondering what the difference between resonated & unresonated was.m, & now I know lol Miltek call it a Race Version too.. I don't know what the difference is though.

Yeah every part I take off the ST I'm going to try & sell, make a little bit of money back lol

In terms of fitting the cat back, how hard would it be? I'm a welder fabricator so I'm pretty hands on & know my way around a toolbox. Is it something I can tackle myself or leave it to a professional?

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Ahh so that's what resonated means! I was wondering what the difference between resonated & unresonated was.m, & now I know lol Miltek call it a Race Version too.. I don't know what the difference is though.

Yeah every part I take off the ST I'm going to try & sell, make a little bit of money back lol

In terms of fitting the cat back, how hard would it be? I'm a welder fabricator so I'm pretty hands on & know my way around a toolbox. Is it something I can tackle myself or leave it to a professional?

If it was mine id take it to an exhaust specialist for fitting mate because it needs special sealant between the joints also need to get car up on a hoist to work on it comfortably.

Those guys have special claw jacks which hold the exhaust in place while they bolt it together eliminating risk of warping the flanges etc.

I took mine to a specialest exhaust place for fitting,

I purposely drove 1hr 35min to have them work on it.

But the exhaust system is off the shelf type,

It won't require any cutting or welding to fit, it's all been done just needs joints sealed when fitting.

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How much did the specialists charge you for doing your exhaust?

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How much did the specialists charge you for doing your exhaust?

50 euro I think,

Had it remapped and oil change in the place at same time.

total was 475 euro if I remember correctly,

Was four years ago

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Do you think that if I bought a Milltek system online & ordered it to my house that an exhaust specialist would just install it for me?

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