Atr exhaust question

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syty9933

New member
i have an upgraded atr exhaust on my truck. i think the downpipe is stock and the the rest is upgraded. idk about it because i didnt put it on. did they make only 3 in inch exhaust or could mine be a 2.5 ???
 
SY2932

SY2932

Administrator
Re: Atr exhaust question

Put one on my truck nine years ago. It's 3 inch mandrel bend stainless steel.
 
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syty9933

New member
Re: Atr exhaust question

SY2932 said:
Put one on my truck nine years ago. It's 3 inch mandrel bend stainless steel.
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aight cool, because my brother has a 3 inch exhaust and downpipe for atr also. so the only diffence in his and mine is my stock downpipe?
 
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Captain Morgan

Moderated User
Re: Atr exhaust question

syty9933 said:
aight so if my brother had an atr 3 inch exhaust and downpipe for a pte61 the cat and downpipe are differnt from mine? why would my cat be differnt?
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well.... if you put a PTE61, 3" ATR downpipe and 3" ATR exhaust, why would you keep a 2.5" stock cat?? I would certainly hope he upgraded to a 3" cat at well.

odds are, if all your truck has on it is a 3" ATR cat-back system, you still have the stock cat under there.
 
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syty9933

New member
Re: Atr exhaust question

Captain Morgan said:
well.... if you put a PTE61, 3" ATR downpipe and 3" ATR exhaust, why would you keep a 2.5" stock cat?? I would certainly hope he upgraded to a 3" cat at well.

odds are, if all your truck has on it is a 3" ATR cat-back system, you still have the stock cat under there.
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but if it has an atr 3 inch why would the stock cat still be there?
 
Sean Krupa

Sean Krupa

Moderator
Re: Atr exhaust question

Because it is a Cat-back, meaning that the 3in part starts at the end of the stock cat. When my dad installed the ATR 3in cat-back exhaust he still had the stock cat. You have to buy a aftermarket 3in cat which mine is from ATR.
 
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Captain Morgan

Moderated User
Re: Atr exhaust question

Sean Krupa said:
Because it is a Cat-back, meaning that the 3in part starts at the end of the stock cat. When my dad installed the ATR 3in cat-back exhaust he still had the stock cat. You have to buy a aftermarket 3in cat which mine is from ATR.
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^^^ what he said :tup:

thanks.
 
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syty9933

New member
Re: Atr exhaust question

Sean Krupa said:
Because it is a Cat-back, meaning that the 3in part starts at the end of the stock cat. When my dad installed the ATR 3in cat-back exhaust he still had the stock cat. You have to buy a aftermarket 3in cat which mine is from ATR.
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i know i have the whole upgrade with the cat. idk who started bringing up the catback only part. my question is already answered i just got confused when someone thought i had just a cat back. my question was already answered before this catback thing,


thanks
 
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Captain Morgan

Moderated User
Re: Atr exhaust question

syty9933 said:
i know i have the whole upgrade with the cat. idk who started bringing up the catback only part. my question is already answered i just got confused when someone thought i had just a cat back. my question was already answered before this catback thing,


thanks
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because thats what ATR made, Cat-Back 3" exhausts. If you have a 3" cat, then its a modified ATR setup (one one end), at least to my knowledge.

I tried to order a full 3" ATR setup years ago and was lead to believe it was available, since I already had a 3" cat (that I added) on my truck, thats what I wanted. I was still sent a normal cat-back setup, which I proceeded to cut the 2.5" - 3" adaptor flange off so I could actually use it.

I mean if you know what you have, why did you even start this thread? If it was that important, why not just crawl your ass under there with a tape measure and see how big the pipe was, its not that difficult. :dunno:
 
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syty9933

New member
Re: Atr exhaust question

srry for wasting your guys time. My actual question now is are there any performance differnces between a stock cat and a 3 inch cat if they both have 3 inch downpipes and 3inch catbacks?
 
Sean Krupa

Sean Krupa

Moderator
Re: Atr exhaust question

Yes, there is a difference. Is it significant, probably not. But does it help, yes. The more free flowing you have to let the exhaust out is definetly benifical. I don't think guys would be buying them if their wasn't any difference. Just my :2cents: Hope this helps.:D
 
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syty9933

New member
Re: Atr exhaust question

Sean Krupa said:
Yes, there is a difference. Is it significant, probably not. But does it help, yes. The more free flowing you have to let the exhaust out is definetly benifical. I don't think guys would be buying them if their wasn't any difference. Just my :2cents: Hope this helps.:D
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aight thanks, i just looked and think that its a 3 inch anyways :lol:

ill take the 3 inch dp off my brothers totalled ty when i upgrade the turbo. thanks to everyone for helping a foolish teenager haha, id be ****ed without this site hahahahahahha
 
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V

Donating Member
Re: Atr exhaust question

are you sure? as morgan mentioned, ATRs are 3", but they neck-down to 2.5" at the cat (i.e, you'll have to modify the end to fit a 3" DP/cat).
 
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V

Donating Member
Re: Atr exhaust question

i think atr had 3" cats, but i've never seen them up close. if you've got a true, 3" cat-back, please post pics of the cat connection.
 
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