For anybody that might be interested I got an e-mail back from Tony at Banks Performance and they will sell you just a y-pipe if this is your desire. Price is 230.00 plus an additional few dollars for a small extension that is needed. This was for the V-10. I would assume they would accomodate other engines as well.

 

Are you sure this an OEM-fit part? The Y that comes with the powerpack will not work with the OEM manifolds.

 

>Are you sure this an OEM-fit part? The Y that comes with
>the powerpack will not work with the OEM manifolds.

NoMo...good point. I just sent another e-mail to Tony to make sure. I didn't specify that it was to bolt on to the oem in my original inquiry. Thx....I'll let ya know what the response is. BTW...how much of a job would this be to install?

 

Just the Y on factory manifolds? That wouldn't be too bad. Seems like the hardest part was reaching up and unplugging the O2 sensors. Oh yeah- getting everything (pipes, manifolds, & Y) aligned wasn't a quick job, but it wasn't "hard" either.

 

NoMo, you were right....their y pipe won't work on the oem manifold. Different sized pipes....their's are bigger. Sorry for the false hope guys.

 

All hope is not lost. A reputable exhaust shop should be able to make you a better than OEM Y-pipe using the basic Banks design for a fraction of the cost. A few guys here on FTE have had it done. But unfortunantly not dyno tested...:-(

 

It seems that there would be a market for an aftermarket Y-pipe, since everyone wants to get rid of flutter - but not all want to pay for the full Banksor Borla header setup

Just got Banks headers a few days ago, but this sure was pushin' it with the wifey!!!


Mike,

2000 Excursion XLT 4x4 V10 w/ Banks Headers, Magnaflow + K&N

 

I have my concerns about the V10 Y-pipe in general. IMO there has to be a very good reason why Ford used such elaborate designs on the two versions of their Ys. The '99-'00 "rams horn" version can't be economical to produce with all those bends. And the '01+ "necked down" version can't be cheap because of all the transitions- both inputs to the Y are necked down then open up again at the output pipe. In both versions, a much simpler (striaght back OR constant-diameter) design would be a lot easier and cheaper to produce.

Based on this concern, I wonder if a pipe built by a local shop might not actually be worse performance-wise than the OEM one. With it's 10 cylinders & odd firing-order, scavenging exhaust seems like a nasty fluid dynamics problem. One that not every good ol' boy can solve.
:-X11

 

I think Ford thought that by increasing backpressure they could stop the flutter. Prolly something to do with the exhaust pulses inside the Y pipe coliding. Seems silly to over engineer the Y when they still use the crappy cast manifolds. I wonder why us folks with header kits don't have flutter issues even with our free flowing Y's?

 

>I have my concerns about the V10 Y-pipe in general. IMO
>there has to be a very good reason why Ford used such
>elaborate designs on the two versions of their Ys. The
>'99-'00 "rams horn" version can't be economical to produce
>with all those bends. And the '01+ "necked down" version
>can't be cheap because of all the transitions- both inputs
>to the Y are necked down then open up again at the output
>pipe.

I wonder if you, or someone else (me? ) could confirm or deny that the V10 Y-pipe is also used in other applications, other than the SD. Is is the same on on the 5.4L? Maybe it was designed the way it was for clearance issues for other applications? Just guessing here 'cause you brought up a very good point. If it were just as easy as welding up and doin' some simple bends, why wouldn't they have done that? Noise? Actually tuning the exhaust?

>Based on this concern, I wonder if a pipe built by a local
>shop might not actually be worse performance-wise than the
>OEM one.

I found out yesterday that there is a dynomometer in my town. If the dyno run prices are right, then I may do some experimenting. (Participation by users here is strongly encouraged, please send donations to "Monsta's Exhaust Gas Release Fund" e-mail for more info.

I know I'll make runs before and after the Flowmaster install. I just wish I would have before I Zoodadededededddeedd.... however you say it.....

 

Monsta:

>I found out yesterday that there is a dynomometer in my
>town. If the dyno run prices are right, then I may do
>some experimenting.

What kind of shop would offer dyno service to folks like us? How'd you find them?



I want to dyno my X with my current setup (K&N, Banks Headers, Magnaflow Muffler). I may be adding a Chip, like the cool new Diablo Delta

or
even a supercharger???


Help me I can't stop myself!!


Mike,

2000 Excursion XLT 4x4 V10

 

HI ALL I have a 2k1 SD w/ 5.4 and it looks to me the same 'Y' pipe is used there too. It's all choked up like a pretzle right there. I also would like to modify the 'Y' pipe into something more straight for less back pressure. There was a reference on here some time ago about a muffler shop that was redoing your current 'Y' pipe, has anybody sent this guy one to see if it fits when you get it back?

 

>>What kind of shop would offer dyno service to folks like us?
>How'd you find them?

Actually dynomometers are used for emission inspections here in MA. Most shops will only do the state inpsection and not do performance measurements but one guy in my town will make his available for performance testing. I am going to his shop tomorrow to check out his prices.

You might try looking under speed shop or performance shop in the phone book.

Cool, a Supercharger. Once you get it, I'll give you the Superman avatar...for Supercharged!
_________

In reference to the NON-Necked down Y-pipe (what I have). My guess for the "ram-horn" design would be to make sure that there is equal length of exhaust between the two banks of cylinders before they collect into one.

I, too, noticed that the pipe appears the same on the V8 & V10 SDs but wonder what the F150 5.4L Y-pipe looks like. NoMo?

 

The F150's Y has 2 cats built in on each bank. It then joins together by one pipe being welded onto the other. The hole in the main pipe is not the same size as the pipe diameter so there is somewhat of a restriction there. Some have used a pre-made Y collector from Flowmaster or Magnaflow to replace the factory Y with good results. Anyone trying to re-do you Y on the Superduty should look into one of these premade Y's. They are nice!