Group buy for Doug Thorley PREMIUM VERSION headers, need 20 people!

xavier847 said:
Denver area.

I thought I had to get the Shorties in order to fit a cat on there. I already have an after market exhaust from cat back, how much more modification would I have to do in order to fit the Magnaflow cats?

And at what price with this group by allow me to get the Long Tubes?

Essentially, I want to know an estimated price on what it will cost me to get the Long Tubes with the Magnoflow cats on my '05 v8 that already has after market exhaust from cat back.
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LT's are bolt on because they remove the cats essentially. Being that you're in an emissions area you'll have to get the shorties with a highflow cat in order to be compliant there. Sorry I live further south in Colorado. (Colorado city/Rye) we don't have emissions like that particular area of Calirado.
 
Anyone here know of a shop anywhere near Denver that does custom exhaust work for this stuff??? I'm having a lot of trouble finding someone.
 
Axlrose16 said:
Anyone here know of a shop anywhere near Denver that does custom exhaust work for this stuff??? I'm having a lot of trouble finding someone.
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Start a new thread for that, this is a thread regarding a nationwide group buy.
 
Last edited:
I like the sounds of a tune! Keep us updated!

Jason B said:
As [MENTION=268835]K-D-Runner[/MENTION] said, I'd recommend the Magnaflow high flows cats, these will give you an extra 7 HP per cat over the factory cats! You can order them from me and they are super inexpensive. Call or text 717-319-2100



Nope, that's the best part. No tune is required or needed (but we are working on a tune that will give another 15-20 hp! stay tuned). And these headers will actually give your exhaust a more smoother/quieter sound after installed, plus the 3-4 more mpg highway (on stock tires). My other customers with 3" lift and 285's, about 2-3 more mpg highway.
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Ok, we got around 16-17 people for Long tubes. SEe the FIRST page of this thread for the list and make sure I added you on it???. We need 20! After we get 20 it's going to take 4-6 weeks to make these, so lets get 20 sooner than later.
 
The long tubes would remove the front cats and o2 sensors correct? I see a rear o2 simulator but I can't find anything for the front. The area I live in requires a yearly emissions test and I would need to pass that.
 
Sithrebel15 said:
The long tubes would remove the front cats and o2 sensors correct? I see a rear o2 simulator but I can't find anything for the front. The area I live in requires a yearly emissions test and I would need to pass that.
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They remove the front cats and we sell everything needed to fix any CEL’s that would happen. We have the cel eliminators in stock and they are inexpensive. Just call or text me at 717-319-2100 before or after you order and will get you fixed up with no check engine lights.
 
xavier847 said:
Ya, I'm wondering what the cost is here.

Is it really $899 for the group buy?

On Doug Thorley's website, a set of Long Tube Headers for 05-09 is $875:
2005-2009 Toyota 4Runner / Lexus GX470 4.7L Long Tube Headers
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This group buy is for the Premium Version of the headers, as the title states; complete stainless steel construction. The current production headers are only 304 stainless for the main runners/tubing. The flange plate and air injection tubes are still carbon steel.
 
Inv4drZm said:
This group buy is for the Premium Version of the headers, as the title states; complete stainless steel construction. The current production headers are only 304 stainless for the main runners/tubing. The flange plate and air injection tubes are still carbon steel.
Click to expand...

Are those even listed on their site?

I'm still debating if I should just get the short tubes on my own.
 
Payment

How do we go about paying for the Long tubes? I have an 04 V-8 4runner.
I may have missed it but I didn't read through every post.
 
To be clear, the difference here is the flanges. From what I understand from my conversations with the company, I don’t think Doug Thorley is selling any more with regular steel injection tubes. They did decide to leave the flanges as regular steel as they are much thicker and will outlast the car probably.

They being said, I too would prefer the fully stainless “premium” version as, why not for a few dollars more in the grand scheme of things.

As I mentioned before in my thread they started all of this, Doug Thorley is replacing my set with their improved version that has stainless injection tubes. I’ve offered to pay the difference to get this version if we get to the 19 people needed...
 
Jason b

Jason B, please remove me from the group buy on the headers. I sent you an email also. I just want to make sure I get taken off.
 
y-pipe? What is it and what does it do with the LT headers?

Does this y-pipe replace the location of the CATs? As I understand it, I will still want to run a cat converter or the truck exhaust will stink, is that correct? In looking at the LT headers, it seemed like a nice and easy install to bolt up a cat back kit, or install the headers and have an exhaust shop custom make an aluminium exhaust with a cat.
 
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