bopp95
New member
What's the jaloppy sound?
Can't wait to even think about affording these headers haha.
Interest in Custom built 4th gen V8 4.7 Doug Thorley Headers
- Thread starter brighton
- Start date
What's the jaloppy sound?
Can't wait to even think about affording these headers haha.
coconutpete
New member
The "jaloppy sound" is the "Pfft, pfft, pfft, pfft" sound you hear when you start your car and drive it at parking lot speeds for the first few minutes after you start the vehicle.
I just had paint correction done - the 4LO actuator is new .. The truck runs like a dream and looks like a million bucks. This is an otherwise perfect marvelous machine and it sounds like a mid 80's Buick Riviera for the first 5 minutes after a cold start. It's embarrasing and I'm excited about a way to fix it other than:
A: Buying an OEM part which will fail again in 65K miles
B: Paying $600[ish] per side for the Magnaflow ones.
C: Buying the Pacesetter headers (while very affordably priced, they do offer the complexity for 2005+ models of having to jump through hoops to convince the engine that nothing is wrong)
I'm very excited to see the pricing also, but early indications seem good. It does look like you'll have the added expense of buying 2 cats on your own and having the fab work done, but hopefully it'll still come in at less than what the Magnaflow ones did because that's the only other option as far as I'm concerned, I'm not giving Toyota money for more faulty parts.
Maybe there'll be an option from Doug Thorley to have the cats included if you live out of state and they are shipping to you, but who knows - CA might be too strict on them to do that. Either way .... i'm excited to see what the outcome is going to be.
Wish mine was only for first five minutes! Mine never stops anymore. Drives me nuts, especially since I have a Gibson cat - back which sounds great.
Bonyfattony
New member
Status Update:
Just called Doug Thorley today and talked to Mike on the current status of our headers. He said he received all the material to start production on last Friday and they are officially starting today making the headers. He informed me this is a 4 week process to fabricate and ceramic coat the headers so we should expect them in September.
They will be short tube, stainless steel, and ceramic coated headers.
Obviously the first run will not be CARB legal, something only that applies mainly to California.
You can also preorder them from Doug Thorley for $750. Keep in mind these are quality headers and are cheaper and a better option than OEM if need to be replaced.
Feel free to call them at 951-371-1744 option 2.
I will keep you guys updated if I find anything else out but will definitely check back in with them in September.
Just called Doug Thorley today and talked to Mike on the current status of our headers. He said he received all the material to start production on last Friday and they are officially starting today making the headers. He informed me this is a 4 week process to fabricate and ceramic coat the headers so we should expect them in September.
They will be short tube, stainless steel, and ceramic coated headers.
Obviously the first run will not be CARB legal, something only that applies mainly to California.
You can also preorder them from Doug Thorley for $750. Keep in mind these are quality headers and are cheaper and a better option than OEM if need to be replaced.
Feel free to call them at 951-371-1744 option 2.
I will keep you guys updated if I find anything else out but will definitely check back in with them in September.
coconutpete
New member
Bonyfattony:
Thanks for the update!
I'll definitely be giving them a call next month. I'm very interested to see if they can offer a welded-on aftermarket cat for us non-California peeps.
Do you by chance know where the O2 sensor is located in the OEM manifold? Is it between the cat and the collector, in the middle of the cat, or between the cat and the flange?
Thanks for the update!
I'll definitely be giving them a call next month. I'm very interested to see if they can offer a welded-on aftermarket cat for us non-California peeps.
Do you by chance know where the O2 sensor is located in the OEM manifold? Is it between the cat and the collector, in the middle of the cat, or between the cat and the flange?
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montana_jeepn
New member
This. Put me down as interested. Thanks. Any idea on performance gains based on similar setups?
montana_jeepn
New member
2005 VVTI btw. Thanks!
Red
Member
Pretty sure long tube headers are better for higher rpm range, you'd want short tube headers for better low end torque.
montana_jeepn
New member
zmyslowy.edek
New member
Hi,
What is today's situation for DT company? Did they made them? I'd like to buy for my 4Runner...
What is today's situation for DT company? Did they made them? I'd like to buy for my 4Runner...
Look at my post above yours, follow the link....
zmyslowy.edek
New member
Yeah, Thanks. Pitty, I have non VVTi version - 2004 engine....
HOJeepster
New member
Thinking I might pull the trigger on these.
Anyone know if these WON'T pass emission inspection?
Any CEL issues we'll have to worry about?
What would be the average installation time required/cost for doing headers?
This ticking is just getting worse and worse.
Anyone know if these WON'T pass emission inspection?
Any CEL issues we'll have to worry about?
What would be the average installation time required/cost for doing headers?
This ticking is just getting worse and worse.
coconutpete
New member
Holy headers Batman! The URD page says "bolt-in" !!!!!!!!! Does that mean they decided to add a cat????
That would be better than fantastic.
That would be better than fantastic.
Not for $750 they didn't, but it means they bolt to our y-pipe which makes it so much easier! and they're coated too!
HOJeepster
New member
So these bolt up to the engine manifold and y pipe location, but don't have cats? Doesn't sound bolt on to me, but requires the addition of welding on cats still. Is that difficult/expensive?
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