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
Ok guys, who wants headers for 05-09 V8? [MENTION=9]Jason B[/MENTION] is getting a group buy together for them at a great price! He will have more info when he gets back on but lets hear who is ready to order. Sound off!
 
Bump

Need 1 more person for the 05-09 V8 group buy! Great price that you can't beat!! Let's make this happen guys, it's even tax season! :humble:
 
Any chance of a GB on the O2 sensors from URD? Left field question I know……
I found a thread on how to add a resister inline with the O2 and stop the code. It's like $6 in parts. URD is plug and play and that's why they charge $150.
 
I found a thread on how to add a resister inline with the O2 and stop the code. It's like $6 in parts. URD is plug and play and that's why they charge $150.

It's more than just a resistor, though. Their kit is a simulator. It still uses the signal from the rear o2 sensors and modifies it accordingly to stay within the range required. My understanding is it still allows the system to calibrate the front o2 sensors.
 
It's more than just a resistor, though. Their kit is a simulator. It still uses the signal from the rear o2 sensors and modifies it accordingly to stay within the range required. My understanding is it still allows the system to calibrate the front o2 sensors.
His question kinda scared me. Just to confirm, the hardest part is welding? I won't have any ECU codes or emission problems with the stock catalytic converters..
 
1) Jeffy (paid)
2) nivlak (paid)
3) JimInTN (paid)
4) hobosapien (paid)
5) Bob J (paid)
6) Jagerzel (paid)
7) Range (paid)
8) V8Limited4wd (paid)
9) SilverAzRunner (paid)

Anyone else that wants to get in on this, now is the time. I'm not 100% sure how long Thorley is going to let me do this deal. I think another week or so maybe. After this deal is done, these headers will be over $700! Again, my guy Mike at Thorley said these should ship around the 29th of this month.

Call/text me at 717-319-2100 to order over the phone, or to order online with a Credit Card, click below

Doug Thorley 03-04 headers ORDER LINK
 
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With these headers, I am buying an exhaust (Flowmaster) and want to get a high-flow cat as well. Since there are 3 cats in the 4 runner, do I need to get 3 high-flow cats?

Its a good idea to replace them all. Keep in mind you may need anti-foulers if you throw any codes though.

Ive considered wiring up a piggy back system to control and tune - but wish there were more options available.
 
Oh, well, I can get Flowmaster and Magnaflow. Does anyone know what others have used that works well on this setup?

I swapped out the 3rd cat / Y-pipe with the Magnaflow. Huge benefit. That thing is a worthless design. I can get you the parts as well, maybe some discounts too. For the primary cats, if you don't plan to use the OEM ones, I would get the other Magnaflow and have the exhaust shop weld them in. They make some "universal" that are easy enough to weld in.
 
1) Jeffy (paid)
2) nivlak (paid)
3) JimInTN (paid)
4) hobosapien (paid)
5) Bob J (paid)
6) Jagerzel (paid)
7) Range (paid)
8) V8Limited4wd (paid)
9) SilverAzRunner (paid)

Anyone else that wants to get in on this, now is the time. I'm not 100% sure how long Thorley is going to let me do this deal. I think another week or so maybe. After this deal is done, these headers will be over $700! Again, my guy Mike at Thorley said these should ship around the 29th of this month.

Call/text me at 717-319-2100 to order over the phone, or to order online with a Credit Card, click below

Doug Thorley 03-04 headers ORDER LINK

I've had a few people ask if they can pay with paypal. If you want to pay with paypal, send $579.99 to [email protected] only via the Friends and Family sending option.
Put me down as #10. Payment has been sent.
 
When can we expect them to be shipped?

Slight delay with ceramic platings. They didn't get into plating until this week. My guy Mike at Doug Thorley said he thinks they will ship this Friday. Crossing fingers.

1) Jeffy (paid)
2) nivlak (paid)
3) JimInTN (paid)
4) hobosapien (paid)
5) Bob J (paid)
6) Jagerzel (paid)
7) Range (paid)
8) V8Limited4wd (paid)
9) SilverAzRunner (paid)
10) Velonici (paid)

Anyone else that wants to get in on this, now is the time. I'm not 100% sure how long Thorley is going to let me do this deal. I think another week or so maybe. After this deal is done, these headers will be over $700! Again, my guy Mike at Thorley said these should ship around the 29th of this month.

Call/text me at 717-319-2100 to order over the phone, or to order online with a Credit Card, click below

Doug Thorley 03-04 headers ORDER LINK
 
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