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Joined: Nov 2004
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skym
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skym Nov 16, 4:08pm - #327626 
2001 Silver Toyota Celica GT
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2001 Toyota Celica GT

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Bradenton, FL
Mandril bent pipes

I'm thinking about doing a custom catback.
An I talk to a mechanic in my area and he said that I don't need mandril bent pipes. He said the restrictions already in the cat so it's not going to help any if I do get the mandril bent pipes.

What do you guys think?

My mufflers going to be Apexi N1 Universal muffler.
Any advice on the mufflers would help too.

Thanks
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AZZKIKR
SHO - NUFF
AZZKIKR Nov 16, 4:41pm - #327627 

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2003 Toyota Celica GT

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ATL GA
you want the mandrel bends...your mechanic is a retard if he thinks that they will not help...
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speed_celica
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speed_celica Nov 16, 4:42pm - #327628 

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2000 Toyota Celica

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Calgary, AB, Canada
Well, it's true that most restrictions are in the cat, but it does help if the rest of the pipes are mandril bent... Crush bent pipe are a lot more restrictive! I think he just told you that so it'll save him a lot of extra work as oppose to just crush bent the pipes. If you have the opportunity to choose, mandril bent for sure, it's worth the extra money and work!!! thumbsup
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skym
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skym Nov 16, 4:59pm - #327629 
2001 Silver Toyota Celica GT
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2001 Toyota Celica GT

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Bradenton, FL
Well he said that he has to order the mandril pipes or something. And he said it was much more expensive with the mandril piping.

Without the mandril piping was $140 without the muffler. I don't know how much the mandril will cost me though...

I'll have to ask him about that.

What do you guys think?

Quote:
Originally posted by tido:
i beat a dude on a bike going to work today...i revved on him and we lined up at the light and it was on....i hit lift once...thats how hardcore it was....
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celicafourotwo
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celicafourotwo Nov 16, 6:03pm - #327630 

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2000 Toyota Celica

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Nebraska
i think you should shop around first b4 sticking with this machenic..i'm sure there are more then 1 muffler shop in ur town..

Originally Posted by pesho01
Question:
Whenever my car is at a full stop or even in park the RPM never sits on 0. what does this mean?
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skym
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skym Nov 16, 6:10pm - #327631 
2001 Silver Toyota Celica GT
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Bradenton, FL
I just hope so. I'll have to ask in some parts store.

Quote:
Originally posted by tido:
i beat a dude on a bike going to work today...i revved on him and we lined up at the light and it was on....i hit lift once...thats how hardcore it was....
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AZZKIKR
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AZZKIKR Nov 16, 6:34pm - #327632 

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2003 Toyota Celica GT

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ATL GA
you want the mandrel bends...I bought a magnaflow catback kit, and installed it for $360 total...it has mandrel bends, and it friggin rocks, I get compliments on it all the time
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speed_celica
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speed_celica Nov 16, 6:40pm - #327633 

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2000 Toyota Celica

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Calgary, AB, Canada
Some muffler shops could actually do the mandrel bents themselves, shop around and find one that does. It'll cost a lot less than if they have to order it from somewhere else... and again...YOU'LL WANT TO GET MANDREL BENT PIPES!!!
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StuntPanda
mmmmm tasty
StuntPanda Nov 16, 6:54pm - #327634 

mmmmm tasty
2001 Toyota Celica GT

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VAN NUYS, CA
Originally Posted by AZZKIKR
you want the mandrel bends...I bought a magnaflow catback kit, and installed it for $360 total...it has mandrel bends, and it friggin rocks, I get compliments on it all the time


mine's about the same. Mandril bent rocks. crush bent pipes lose about 20% of airflow. you're gona need that 20% grin and mandril bent looks a lot cleaner and nicer. definate thumbsup
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celicadragon
Specialist
celicadragon Nov 16, 6:54pm - #327635 

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2002 Toyota Celica

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Pittsburgh, PA
mandrel is best but my custome went pretty much straight thru though and i like it it didnt need anybends

respect the gt-s
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skym
Senior Member
skym Nov 16, 7:03pm - #327636 
2001 Silver Toyota Celica GT
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Bradenton, FL
Originally Posted by AZZKIKR
you want the mandrel bends...I bought a magnaflow catback kit, and installed it for $360 total...it has mandrel bends, and it friggin rocks, I get compliments on it all the time


So did you buy the kit and installed just the kit? or did you take out the stock mufflers and go with a straight back with the magnaflow?

I don't get what you did?
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IcE_Z
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IcE_Z Nov 16, 10:58pm - #327637 
2000 Red Toyota Celica
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2000 Toyota Celica

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Midwest City, Oklahoma
mandrel bent and ditch the mechanic...he's a retard. Shop around for a good and actual reputable exhaust shop...mine did my bends very good and cheap!
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SeeULater
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SeeULater Nov 16, 11:19pm - #327638 
2000 White Toyota Celica
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What is the difference between the type of bending? Machine used to do it? or what?
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skym
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skym Nov 16, 11:42pm - #327639 
2001 Silver Toyota Celica GT
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Bradenton, FL
I don't get it either... It's just a pipe thats bent... I don't know why it matters so much

But thanks guys I'll get the mandril bends and an Apexi N1 Universal muffler so I don't sound like a weed wacker civic. hehe

Quote:
Originally posted by tido:
i beat a dude on a bike going to work today...i revved on him and we lined up at the light and it was on....i hit lift once...thats how hardcore it was....
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importcarbabe
Turbonator
importcarbabe Nov 16, 11:50pm - #327640 

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2000 Toyota Celica

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Minnesota....Yaa!!!
^^^think of a pipe that is bent but has crinkles in it slowing the air path down, now think of a bend that is completely smooth giving you optimal air flow. I am sure somebody can post some pics that will depict the differences.

"If you dont like Hair blowers why would you like Turbo's"

Last car '92 Eagle Talon TSI AWD, R.I.P, Current car '00 Toyota Celica GT-S. Next car Fully Built 1st Gen AWD DSM.


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skym
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skym Nov 16, 11:52pm - #327641 
2001 Silver Toyota Celica GT
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Bradenton, FL
How's the Apexi N1 universal mufflers?
Does anyone have better recommendations?

Quote:
Originally posted by tido:
i beat a dude on a bike going to work today...i revved on him and we lined up at the light and it was on....i hit lift once...thats how hardcore it was....
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Maka
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Maka Nov 16, 11:57pm - #327642 

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2000 Toyota Celica GT

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Michigan
tpr

[Linked Image]
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skym
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skym Nov 17, 12:00am - #327643 
2001 Silver Toyota Celica GT
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Bradenton, FL
Just the muffler?
I thought they only make catbacks.
Anyways what does TPR stand for?
And whats a good price point for the muffler only?

Um... where can I get them... I just searched on froogle and nothing came up...

Quote:
Originally posted by tido:
i beat a dude on a bike going to work today...i revved on him and we lined up at the light and it was on....i hit lift once...thats how hardcore it was....
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Posts: 993
Maka
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Maka Nov 17, 1:10am - #327644 

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2000 Toyota Celica GT

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Michigan
check the for sale forum, there was a guy selling his custom pipe with an apexi n1 muffler, I think it was 200$ thumbsup thumbsup

[Linked Image]
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skym
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skym Nov 17, 2:29am - #327645 
2001 Silver Toyota Celica GT
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Bradenton, FL
$200 is too much for that. I could get the muffler for 200.
I don't think the pipes are mandrilled anyways.

TPR's too hard to find. I'm guessing only EasyC sells it to groups.

How's the Apexi N1 universal muffler? anything other than TPR?

Quote:
Originally posted by tido:
i beat a dude on a bike going to work today...i revved on him and we lined up at the light and it was on....i hit lift once...thats how hardcore it was....
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skym
Senior Member
skym Nov 17, 2:42am - #327646 
2001 Silver Toyota Celica GT
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2001 Toyota Celica GT

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Bradenton, FL
Also how big of a piping should I get for the N1 muffler?
There's 2:
60mm 90mm
80mm 115mm

What are these in inches?

Quote:
Originally posted by tido:
i beat a dude on a bike going to work today...i revved on him and we lined up at the light and it was on....i hit lift once...thats how hardcore it was....
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red01gts
New Member
red01gts Nov 17, 6:56am - #327647 

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2001 Toyota Celica

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So Cali
Mandrel bent pipes use a "Mandrel" inside the pipe during the bending process to keep the pipe from distorting during the bending process. In other words, the ID of the pipes stays the same throughout the bend when using a mandrel.

Normal Muffler shops use a hyd bender to make bends in the pipe. This actually crushes the pipe on itself and you lose on the ID of the pipe through the bend. Not only does the pipe bend onto itself (hurting flow), but it also "wrinkles" which disrupts flow as well.

YOu can have mandrel bent "U-Bends" ordered up and have the muffler shop cut and weld them to whatever you want or you could buy a muffler kit. I personally like Magnaflow and TPR, with TPR being my first choice.
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skym
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skym Nov 17, 7:09am - #327648 
2001 Silver Toyota Celica GT
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Bradenton, FL
I was thinking about getting Magnaflow but so many people were against it. I don't know why?
Do you know?
I'm more into the sound than performance. The gains don't really matter for me. Just a decent one would do.

Quote:
Originally posted by tido:
i beat a dude on a bike going to work today...i revved on him and we lined up at the light and it was on....i hit lift once...thats how hardcore it was....
Joined: Nov 2004
Posts: 459
skym
Senior Member
skym Nov 17, 3:15pm - #327649 
2001 Silver Toyota Celica GT
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2001 Toyota Celica GT

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Bradenton, FL
Dang~
I called other muffler shops and they don't do Mandrils anywhere in Bradenton... What shitty place... Only old people live here... thumbsdown

Quote:
Originally posted by tido:
i beat a dude on a bike going to work today...i revved on him and we lined up at the light and it was on....i hit lift once...thats how hardcore it was....
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Posts: 191
shonen
Member
shonen Nov 17, 6:57pm - #327650 
2001 absolutely red Toyota Celica
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2001 Toyota Celica

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North Carolina
Mandrel bends are better because the pipe retains its full circular shape. Pressure bent pipes will bend the pipe in a way that stretches the pipe on the outside and squeezes the inside together giving a small skrunched pipe that is worst then stock. The mechanic is right that the cat is restrictive but the whole point of an aftermarket exhaust system is to make the system as a whole less restrictive, lazy mechanics and there stupid logic, you might not want that guy working on you car.
The mm to inches conversion is roughly 25.4 mm=1 inch.
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skym
Senior Member
skym Nov 17, 7:01pm - #327651 
2001 Silver Toyota Celica GT
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2001 Toyota Celica GT

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Bradenton, FL
Originally Posted by shonen
Mandrel bends are better because the pipe retains its full circular shape. Pressure bent pipes will bend the pipe in a way that stretches the pipe on the outside and squeezes the inside together giving a small skrunched pipe that is worst then stock. The mechanic is right that the cat is restrictive but the whole point of an aftermarket exhaust system is to make the system as a whole less restrictive, lazy mechanics and there stupid logic, you might not want that guy working on you car.
The mm to inches conversion is roughly 25.4 mm=1 inch.


Ok but nobody here has mandril bending tools.
I guess I have to get an aftermarket catback instead of custom.

The last part was funny hehe
but I get you thumbsup
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VSGTS14
05 WRB
VSGTS14 Nov 17, 7:05pm - #327652 

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2005 Subaru WRX STi

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Posts: 10,123
Milford, NJ
first off
there is no such thing as a catback for a celica, the piping does not allow for a catback and even if there was, it wouldn't help any.
all the exhausts are axle backs
TPR makes a new axle back for the celica..they are not a major company that you can find on a website, they are the best performing so far...better than all exhausts for celica.

SUBARU TECNICA INTERNATIONAL
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skym
Senior Member
skym Nov 17, 7:08pm - #327653 
2001 Silver Toyota Celica GT
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Bradenton, FL
I was thinking about custom catback because it was much cheaper.
It wasn't because of the performance. I just thought I could save some money if some one could do it in this town...
But turns out noone can.

So I'm saying that in the end I'll get the axle back. So much for nothing frown

Quote:
Originally posted by tido:
i beat a dude on a bike going to work today...i revved on him and we lined up at the light and it was on....i hit lift once...thats how hardcore it was....
Joined: Jul 2002
Posts: 10,123
VSGTS14
05 WRB
VSGTS14 Nov 17, 7:12pm - #327654 

05 WRB
2005 Subaru WRX STi

Joined: Jul 2002
Posts: 10,123
Milford, NJ
if you did a custom catback, all you're doing is adding a little more piping to the axle back..which isn't going to make a whole lot of differnce..

SUBARU TECNICA INTERNATIONAL
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skym
Senior Member
skym Nov 17, 7:21pm - #327655 
2001 Silver Toyota Celica GT
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2001 Toyota Celica GT

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Bradenton, FL
Yeah it may not be different with the custom catback in performance but it's much cheaper doing a custom catback than buying a catback system like TRD.
But I've decided that i'm getting the magnaflow or a used N1

Quote:
Originally posted by tido:
i beat a dude on a bike going to work today...i revved on him and we lined up at the light and it was on....i hit lift once...thats how hardcore it was....
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