Custom J-pipe - tell me what you guys want
 

okay....so i have read enough post regarding people wanting a J-pipe for our cars. I am getting one done for myself, so I was thinking maybe I could get everyone's opinion on what they want, and possibly hook you guys up for those who would want one. I am in no way selling them myself. Just pointing you to the direction where you could find them. Hopfully I wont piss anyone off.

Since most aftermarket exhaust system avaliable for our TL uses 2.5" pipe, I have decided that the J-pipe will also have a 2.5" outlet. The inlet would be either 2" or 2.25".

Here are a few questions:
1. Would you want to delete the 3rd cat, retain the 3rd cat, or have the option of a test pipe?

2. Would you want the J-pipe to be mandrel bent? (It would cost more as they need specialized machine to do that)

3. Would you want the J-pipe to be equal length? (There are lots of debates regarding these issues. Some say it doesn't matter, some say it makes lots of difference.)

4. Would you want the J-pipe to be Stainless steel? (This would increase the cost but it would look bling bling.)

If there are enough interest, I could arrange to have them fit on a stock TL and TL-S and dyno to see the power gain. I would also do it on mine but mine is pretty far away from stock.

If there are not enough interested, then I wouldnt bother since dynoing alone is pretty expensive. In my area it cost $100 for 3 runs.

So tell me what you guys think! And don't worry about the quality, because I only want the best!

Here is a "write-in vote" :patriot:

Titanium J-Pipe

"for that light-weight feeling..."

:victory: :gheywave: :victory:

hahah how much would that cost?
:punch:

They could make it in titanium if there are enough interest. =)

No one else want J-pipe?

Price would really depends on what you guys want. A non-stainless crush bent pipe would be much cheaper then a stainless mendrel bent pipe.

It really depends on the price, I'd be down with a JPipe though.

Does it add any noticeable sound and/or horsepower at all though for N/A?
I'm sure it adds sound if it doesnt have the 3rd cat.

Mandrel bent, equal length, stainless j-pipe? Absolutely! I had to pass on one a couple of months ago, and I've been kicking myself in the ass. I'll be following this thread for more info.

From what I was told by others who have a similar pipe, without the 3rd cat it is slightly louder, but only slightly.

Hmm.. I hate cars took his out and he said it gives it a real "throaty sound"

I'd be down with a J Pipe for sure though. Lets get something working:nod:

If you guys are interested, put your name on the list so i could have an idea of how many people are interested.

1. lookinco
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here are a few different J-pipe design:

http://xdf.xanga.com/630c03f70723214...m108906194.jpg

http://x92.xanga.com/4adc35f37403514...m108906198.jpg

http://x85.xanga.com/7bfc33fb0723514...m108906201.jpg

The Jpipe is going to be legal though right? Atleast visually and pass emissions? Or will it not have the 3rd cat?

I really don't know much about the emissions system, but won't removing the third cat cause a CEL and also make emissions testing harder if you already have the E-Shift pro cats? Also whats a test pipe?

The J-pipe itself will be 100% legal and will pass emission.

We could do it with or without the 3rd cat, all depending on what you guys want.

We could also make a 2.5" test pipe where you could switch the cat out. Just put the test pipe back in after emission.

Removing the 3rd cat will not cause a CEL. There are no sensors on the 3rd cat, they are on the 2 precats right after the block.

A test pipe is bascailly just a pipe, with two flanges on it so you could bolt it straight up to your exsisting exhaust system. It has nothing inside, just a straight through pipe. All you have to do is remove 6 bolts, switch it out, and put the 6 bolts back in.

Alright, good shit than:thumbsup:

The third on looks blinginnnn:nod:

But me personally, would rather have function over aesthetics.

interested.

1. lookinco
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So far it seems most people want a Equal Lengthed, Mendrel Bent, Stainless J-pipe with the test pipe option.

the second one looks to be the best design for our cars

Yes the second one seems to have the best design so far. However that J-pipe deletes the 3rd cat which some people do not want to.

well I mean for those who choose to be carb or emissions compliant can't the third cat be inserted after the jpipe? I know it will require some adjustments to the stock exhaust but it can be done correct?

Yes for sure......all you have to do is modify your exhaust. It would be a pretty simple modification.

However I will try to make it so that it's a simple bolt up so no need for extra modification.

Is there any way the non-equal length ones are just as efficient? anyone care to comment? Either way- Im on the list, lookinco :thumbsup:
1. lookinco
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I actually researched about the equal vs non-equal headers and there seems to be a big debate regarding it.

Some say unequal headers would produce more low end torque, some say equal length headers are good for top end.

where did you read that? link? enlighten us, bro!

here is a link i found where they were comparing a equal length and unequal length header. However this comparison was done on a mustang so I am not sure how much would it apply to us. The result was that equal header is better then unequal length ones.

http://www.ampperformance.com/help.guide.htm scroll to the middle

Here is another good read regarding header design:
https://acurazine.com/forums/showthread.php?t=68139

HEY... don't skip me dude

1. lookinco
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Don't need to fight...haha.....everyone will get what they want...*hopfully*

Just so you guys know tho, the price for a pipe like this would probably be more expensive than the ones that other have made. That is if we are making a Equal Length, mandrel Bent, Stainless Steel J-pipe along with the Test Pipe.

But as you guys all know, you get what you paid for. I am sure everyone here all want quality stuff for your TLs.

My bad!!! I got a good laugh from that, though! sorry-
I copied to early of a list. here

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as long as the price is justifiable- ???

Of course.....it wouldn't be crazy expensive....i don't want to get ripped off too....lol

However for a shop with great reputation to do quality work is not cheap at all, especailly here in Vancouver. For sure I will try my best to get the best deal possible for us.

im in
1. lookinco
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sounds good! the more the merrier!

hey joe I was just kidding about that, glad it made you laugh since that was intended lol, yay for jay (pipe that is)

Just throwing this out there.. how about galvinized steel piping? Can that handle heat and pressure? If so, its pretty much like stainless steel (but won't rust), but its cheaper and easier to modify..

Count me in !
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10.[/QUOTE]

:nod: yeah I have been thinking about the name since last night..It's been BUGGING me haha..what would you guys thing of galvanized though?

Stillhere..:rofl: "Dont skip me dude!" haha

I would think galvanized could cause some problems. That type of treatment is great for long lasting protection... but causes cancer when it is heated to high temps. Im not sure what temp has to be achieved in order for these gases to be emitted, but I would think there is a potential for problems with the hot exhaust running through it.

Let me ask those exhaust experts and see what they say. If they said no problem and most people want it then we could do it with galvanized steel, or any other material.

Why would you want anything LESS than stainless? The only other alternative woudl be "aluminized" steel (which is notably cheaper), which will not last unless you live in Arizona.

No sense going cheap here.

Galvanizing is just a coating (Zinc) applied to steel to keep it from rusting... it is very expensive to galvanize steel (the process is similar to chroming)... which will most likely peel during the installation process and over time...

So in conclusion... there is no cost benefit to using a galvanized steel pipe... 'cause you're only going to incur additional cost by just galvanizing the steel pipe... after production of the j-pipe...

I'd say go titanium all the way forget what the cost will be... super light and last a very long time... not to mention the nice color it will turn when hot