Interest in Custom built 4th gen V8 4.7 Doug Thorley Headers

Would you like the DT headers to have a Highflow catalytic converter?

  • Hell no! Open and loud.

    Votes: 35 9.1%
  • Yes, I would like to be legal.

    Votes: 283 73.9%
  • I don't care either way as long as I get them!

    Votes: 65 17.0%

  • Total voters
    383
You can get rid of all of them if you go to URD and order their cat simulator. It's $150.
I do care for the environment so eliminating cats all together is a no go for me. Besides, the stinky exhaust is pretty bad w/o any cats!
 
I do care for the environment so eliminating cats all together is a no go for me. Besides, the stinky exhaust is pretty bad w/o any cats!
It's far stinkier with the cats. You can get high flow cats and put them on too. Any way you go besides stock you will most likely get the code. The URD cat eliminator will keep the codes away.
 
In California you will fail the visual without cats... I don't suggest running no cats. Hallowing out the cats would be your best bet.
 
For those who have done this mod....

Did you have the cats welded on to the stock headers at whatever shop did the install, or did you have to take the DT's and stock headers to a metal working shop to have the two welded together?

Just curious, thanks

I had them welded on elsewhere, but they got the orientation of one of the flanges wrong, so when the install happened, they cut the one off the Y pipe, turned it and welded it into place.
 
It's far stinkier with the cats. You can get high flow cats and put them on too. Any way you go besides stock you will most likely get the code. The URD cat eliminator will keep the codes away.

I got codes (420 C& 430) when installed. I bought the URD O2 simulator and no problem. Emission test passed too.
 
I hope not. :( I cant afford it now but I do have a ticking when its cold so I know I am going to need new ones at some point. really would prefer to put something beefier in.
 
Got a quote from a shop, 14 Hours to replace manifolds is what the book says. If it's less they will only charge me the actual hours. So no more than 1100, hopefully. Then they will build me a dual exhaust without cats, tucked up as high as possible to keep it safe offroad for 600. That includes the muffler.
 
I only say that because this has been tried several times before and nothing ever came of it. Tollbooth started this up before the holidays around December 18 and I have not had a response in PMs or on this page yet. So I am just wondering if there were not enough People interested in buying.
 
I'm going to contact DT on Monday and see if I can take over this GB. I'm sure we have more than 10 people who are ready to buy so hang tight. I've been wanting this forever so I'm not disappearing.
 
I only say that because this has been tried several times before and nothing ever came of it. Tollbooth started this up before the holidays around December 18 and I have not had a response in PMs or on this page yet. So I am just wondering if there were not enough People interested in buying.

[MENTION=43095]tollboothwilley[/MENTION] Is the group buy still happening? Inquiring minds are asking.

Count me in for the 03-04

I'm going to contact DT on Monday and see if I can take over this GB. I'm sure we have more than 10 people who are ready to buy so hang tight. I've been wanting this forever so I'm not disappearing.


Sorry for the delay fellas. With the holidays and then I had a death in the family, things got crazy.

For those of you who are ready to order

SEND ME your FIRST, and LAST Name.

I need to make sure we have the 10+ needed, and then we will get payment instructions for you

John
 
Here's who has actually sent me a PM regarding "ready to pay"
again $579 SHIPPED

we only have 5 of the 24 people who are actually ready...

Range
Wracks03s
LittleTDI
BobJ
Me (Tollboothwilley)




List below is the GB people who said they wanted in

1. Tollboothwilley
2. CruzadoBlanco
3. the great him
4. sr3tlaw
5. Jagerzel (on the fence)
6. V8Man
7. jp8900
8. Bob J
9. V8Limited4wd
10. wmiranda
11. wracks03s
12. wracks03s (another set)
13. BusinessHippieRH (time frame)
14. nivlak
15. derekdevasia
16. JDinh4R
17. KaseyMcc
18. xcvgi
19. theory6
20. Duncan
21. kyle-uran
22. stoopid-911
23. Range
24. AZ4runnin
25. LittleTDI
 
Last edited:
Here's who has actually sent me a PM regarding "ready to pay"
again $579 SHIPPED

we only have 5 of the 24 people who are actually ready...

Range
Wracks03s
LittleTDI
BobJ
Me (Tollboothwilley)




List below is the GB people who said they wanted in

1. Tollboothwilley
2. CruzadoBlanco
3. the great him
4. sr3tlaw
5. Jagerzel (on the fence)
6. V8Man
7. jp8900
8. Bob J
9. V8Limited4wd
10. wmiranda
11. wracks03s
12. wracks03s (another set)
13. BusinessHippieRH (time frame)
14. nivlak
15. derekdevasia
16. JDinh4R
17. KaseyMcc
18. xcvgi
19. theory6
20. Duncan
21. kyle-uran
22. stoopid-911
23. Range
24. AZ4runnin
25. LittleTDI
Is this for 03-04 only or will they allow 05-06 in the GB? If so, when is this going to happen as I won't have my money until beginning of February.
 

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