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(Post Link) post #1 of 19 Old 30-08-16 Thread Starter
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Exhaust type?

Going to get Powerflow in Glasgow to make a stainless steel exhaust for my GT at the end of the month, but im a total novice, know absolutely nothing about exhausts. Can someone tell me whats soet of type i should be looking for?

Hoping to improve power / throttle response but not impact fuel efficiency or cause any issues with the MOT.

Ive tried doing some research online but all the different types confuse the life out of me lol.

Can someone point me in the right direction?
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Yes, don't take it to powerflow.

Get one that's been designed for the car and had plenty of research and development done on it. It's advice that I wish I'd have taken.
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Yes, don't take it to powerflow.

Get one that's been designed for the car and had plenty of research and development done on it. It's advice that I wish I'd have taken.


Any suggestions?
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Not sure for the JTS but I would be looking at the Wizard (obviously), supersprint, razagon which are all on the pricey side but you get what you pay for. I would also have a look at scorpion, whose systems are pretty much the same price as the custom exhaust builders but don't resonate in the cabin nearly as much as a custom build one would.
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Would a proper remap be better value?

You'd probably want to keep the fact of having done it, under your hat to avoid someone snitching to your insurer, but most diesels seem to have room for improvement in the form they're delivered in.

I am graced with a non-Alfa that has a badly built custom exhaust from cat back, no gain in poke (I've driven a stock one) and horrible droning at normal road speeds...
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(Post Link) post #6 of 19 Old 31-08-16 Thread Starter
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Im getting a remap done along with the exhaust.

Was told as its a petrol the remap wont bring massive gains but changed along with the exhaust gets the most from it.

Ill look at scorpion exhausts if thats what you guys think is best. Do they fit all cars or will there be a specific one which fits the GT JTS?
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(Post Link) post #7 of 19 Old 31-08-16 Thread Starter
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Cant seem to find a scorpion exhaust online for the 2litre petrol jts

Looked on their website and they only list an option for the V6 3.2

Has anyone on the forum had a custom exhaust fitted the 2l jts?

Last edited by Harryhillan1990; 31-08-16 at 07:19.
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I'd assumed your car was a JTD powertrain, hence the remap comment.

What if you left it stock and used the same expenditure to drive it more often, or to further places, to really enjoy the quality of engineering that puts it above most cars on the road?
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(Post Link) post #9 of 19 Old 31-08-16 Thread Starter
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I'd assumed your car was a JTD powertrain, hence the remap comment.

What if you left it stock and used the same expenditure to drive it more often, or to further places, to really enjoy the quality of engineering that puts it above most cars on the road?
I understand what your saying but to properly enjoy it Id like to improve the throttle response. Been told a better exhaust and a remap will sort that.
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What's the mileage on your 2.0 JTS out of interest?
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(Post Link) post #11 of 19 Old 31-08-16 Thread Starter
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What's the mileage on your 2.0 JTS out of interest?
Its 59,000. Will that impact which exhaust i should choose?

Last edited by Harryhillan1990; 31-08-16 at 17:17.
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I would also have a look at scorpion, whose systems are pretty much the same price as the custom exhaust builders but don't resonate in the cabin nearly as much as a custom build one would.
No offence but it just sounds to me like you went to a poor aftermarket exhaust shop. Any decent shop will work with the customer to create a system that they like and should be able to make recommendations based on your personal requirements.

Sure, if you go and say "give me a new stainless exhaust please!" with no other information such as requesting central and rear silencers, a chambered centre, keep the noise/drone down, nice rasp or a throaty idle etc. then yep, they'll just make something up that may not be suitable (not saying you have done this, but it is a common mistake).

But if you go and say "How much for a cat-back stainless system with a large chambered central silencer and a smaller rear? I'm looking to keep the drone to a minimum and a lovely raspy, almost WRC type exhaust note in the high end". Then they'll come back to you with all sorts of suggestions as for which mufflers you can look at, tubing size, silencer sizes etc.

So I wouldn't rule out a local exhaust shop so long as the OP can give some basic requirements and goes to a place that will work with them to achieve the result and not just slap any old thing on it and call it a day.

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(Post Link) post #13 of 19 Old 31-08-16 Thread Starter
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No offence but it just sounds to me like you went to a poor aftermarket exhaust shop. Any decent shop will work with the customer to create a system that they like and should be able to make recommendations based on your personal requirements.

Sure, if you go and say "give me a new stainless exhaust please!" with no other information such as requesting central and rear silencers, a chambered centre, keep the noise/drone down, nice rasp or a throaty idle etc. then yep, they'll just make something up that may not be suitable (not saying you have done this, but it is a common mistake).

But if you go and say "How much for a cat-back stainless system with a large chambered central silencer and a smaller rear? I'm looking to keep the drone to a minimum and a lovely raspy, almost WRC type exhaust note in the high end". Then they'll come back to you with all sorts of suggestions as for which mufflers you can look at, tubing size, silencer sizes etc.

So I wouldn't rule out a local exhaust shop so long as the OP can give some basic requirements and goes to a place that will work with them to achieve the result and not just slap any old thing on it and call it a day.
Im glad you posted as id never have though of any of this. Like i said i know nothing of exhausts. I just want something that will free up a couple of hp and make it sound like a proper Alfa petrol engine should. Dont want it to sound cheap and nasty.

Apart from that id like to stick as close to the stock as possible (if i dont have to declare it to my insurance all the better but fully prepared to if necessary)

Any suggestions as to what to ask for?
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Ill admit im disappointed with the stock sound for a petrol alfa
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Originally Posted by AussieAlex View Post
No offence but it just sounds to me like you went to a poor aftermarket exhaust shop. Any decent shop will work with the customer to create a system that they like and should be able to make recommendations based on your personal requirements.

Sure, if you go and say "give me a new stainless exhaust please!" with no other information such as requesting central and rear silencers, a chambered centre, keep the noise/drone down, nice rasp or a throaty idle etc. then yep, they'll just make something up that may not be suitable (not saying you have done this, but it is a common mistake).

But if you go and say "How much for a cat-back stainless system with a large chambered central silencer and a smaller rear? I'm looking to keep the drone to a minimum and a lovely raspy, almost WRC type exhaust note in the high end". Then they'll come back to you with all sorts of suggestions as for which mufflers you can look at, tubing size, silencer sizes etc.

So I wouldn't rule out a local exhaust shop so long as the OP can give some basic requirements and goes to a place that will work with them to achieve the result and not just slap any old thing on it and call it a day.
No offence but you could not be more wrong.

My research was extensive, sound clips were provided and I insisted on a chambered rear silencer as well. Two attempts were made but the droning remained and the sound they told me was achievable was sadly not.

I was warned extensively on here and other forums about custom build exhausts but I didn't listen as I was told the sound I wanted could be achieved by the company I used, who also is also an Italian car specialist.

It was the cheaper option and now after great expense I have replaced it after only 9-10 months with the exhaust that I wanted in the 1st place. Everything is better, the sound is amazing, the build quality is in a different league and performance is better as it was designed for my car.

Just my experience of not listening and trying to save money. It backfired.

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No offence but you could not be more wrong.

My research was extensive, sound clips were provided and I insisted on a chambered rear silencer as well. Two attempts were made but the droning remained and the sound they told me was achievable was sadly not.

I was warned extensively on here and other forums about custom build exhausts but I didn't listen as I was told the sound I wanted could be achieved by the company I used, who also is also an Italian car specialist.

It was the cheaper option and now after great expense I have replaced it after only 9-10 months with the exhaust that I wanted in the 1st place. Everything is better, the sound is amazing, the build quality is in a different league and performance is better as it was designed for my car.

Just my experience of not listening and trying to save money. It backfired.

I have no issue spending the money, the issue is that there doesnt seem to be many / any options for the JTS engine, everyone ive saw is either for the V6 or the diesel.
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Its 59,000. Will that impact which exhaust i should choose?
It was only that you mentioned throttle response, the JTS engines are normally fairly revvy and responsive but they are known for suffering issues, often fuel injectors but usually only at higher mileages that yours. I was half-expecting you to say 100k and then I would have been advising you to look at getting your injectors refurbed. But at 59k unless there are other symptoms you should be fine for a while.

Wizard Exhausts can build a system for the 2.0 JTS which will do everything you've asked for - send us a message www.facebook.com/WizardExhausts

Autolusso Penrith - UK's leading independent Alfa Romeo specialist with branches in Bedfordshire, Cumbria & Dorset

Wizard Exhaust systems available here

Tel: 01768 879 171
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Originally Posted by warniegt View Post
No offence but you could not be more wrong.

My research was extensive, sound clips were provided and I insisted on a chambered rear silencer as well. Two attempts were made but the droning remained and the sound they told me was achievable was sadly not.

I was warned extensively on here and other forums about custom build exhausts but I didn't listen as I was told the sound I wanted could be achieved by the company I used, who also is also an Italian car specialist.

It was the cheaper option and now after great expense I have replaced it after only 9-10 months with the exhaust that I wanted in the 1st place. Everything is better, the sound is amazing, the build quality is in a different league and performance is better as it was designed for my car.

Just my experience of not listening and trying to save money. It backfired.
Sad to hear you had a really bad experience.

I've never had any issues getting custom systems done either on my car or with friends. The place I used to use back in Australia would let us have a listen after every change was made and we could swap out mufflers or try more or less of them etc. until we were 100% satisfied. Then they would weld it up and off we went. Never had any issue as changes were made on the spot and I was present at every step of the process.

However if Wizard do a system for the JTS then just do it! If I had the money I would definitely get a Wizard system!
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(Post Link) post #19 of 19 Old 02-09-16 Thread Starter
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Thanks for the advice guys, will give wizard a call this afternoon!
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