Ah sweet!  Thats awesome! :laugh: 
Yeah I'll check the local shops for a good resonator then.  I was hoping that someone here has replaced their resonator with something they liked?

Quote from: TGP Nick on February 23, 2007, 11:33:44 PM
Well I found a thread: http://www.tgpforums.com/index.php?topic=852.0  That told me that the stock DP is only 2.25"! :icon_eek:  That NEEDS to be made bigger... does anyone with experience here know if I can cut the stock DP, use teh stock flange/mounts/coupler, and as you go further down the DP, I was thinking of cutting it there and welding a 3" pipe onto there.  Could I do this?

The largest down pipe with a auto tranny will be 2.5 inch.Been there done that!  :icon_mrgreen:  I THINK the flange on the down pipe is cast iron,so you wont be welding exhaust pipe to it either. :icon_sad:       

Quote from: flybynite on February 24, 2007, 02:22:58 PM
The largest down pipe with a auto tranny will be 2.5 inch.Been there done that!  :icon_mrgreen:  I THINK the flange on the down pipe is cast iron,so you wont be welding exhaust pipe to it either. :icon_sad:      

Ok thanks- good to know.  Looks like I will be sticking with the stock downpipe. :icon_frown:  Hopefully that isn't TOO much of a restriction...
Still lookin at a 3" exhaust from there back, though.

             This is a about the best I can give ya Nick. Maybe if it was light out, it be better. I believe your money shot is picture 282 ;)


                  http://s138.photobucket.com/albums/q276/JimmyTGP/

   

[quote from Jimmy] I had to use the DP, but I had a guy weld a 3" on to that, and all the way to the back, including the Y with 3" tips[/quote]
Jimmy had a 3" pipe welded onto his downpipe coupler... so it CAN be done.  He has a 5 speed though, not sure if that makes a difference...

Jimmy's system was done with the auto still in the car and the pipe was welded on after the downpipe joint. The entire downpipe is still stock on his. This picture was taken from the passenger side of the car so the engine is to the right and the tail lights are left. You can see the pipe bow upwards to the downpipe joint on the right side of the picture. http://s138.photobucket.com/albums/q276/JimmyTGP/?action=view&current=100_0282.jpg
Tim

So if I'm understanding this correctly; Jimmy's downpipe is the stock 2.25" cast iron pipe?  And then from the DP to teh mufflers, he is running 3" exhaust?

       Correct Nick. The guy told me that he would try to do something to the DP but as we all can see, apparently he just couldn't :icon_rolleyes:

The main issue I see with the down pipe is the top end where it bolts to the turbo. If the turbo used a V band clamp making a new pipe would be easy. At the bottom end it needs to flex some so a flex joint similar to what is on the crossover can be used and a bracket used to secure it to the back of the engine similar to what is there with the factory downpipe.
Tim

Okay I see.  I guess I'm stuck with the factory DP. :icon_frown:

Unless you're planning on some serious mods, the factory downpipe will be just fine.

I'm lookin at POSSIBLE FUTURE mods, so I guess I'll just do 3" from the DP to the mufflers.(with a resonator and mandrels in there, too.)
If/when I'm ready to do more, I'll work on the DP, but for now it will suffice.

Here is my old down pipe.It's attached to a tdo4 that held a steady 18lbs.It starts out as 3 inch at the turbo then is reduced to 2.5 inch all the way till it splits at the rear of the car.  :icon_cool:  later..Adam

Why is there another O2 sensor coming off the downpipe??

Quote from: grinders_18 on February 27, 2007, 06:17:44 PM
Why is there another O2 sensor coming off the downpipe??

Thats the only one i have.I moved it down stream a little to keep from hurting my wideband o2 sensor.