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

Anyone know a good replacement gasket for the collector flange at the back of the Thorley Y-pipe?

...or do I need to order an OEM donut gasket?
 
Any tips here?...my guy in the middle of this job saying he might have to pull the engine to install, get the bolts in/torqued.

WTF?!
 
Any tips here?...my guy in the middle of this job saying he might have to pull the engine to install, get the bolts in/torqued.

WTF?!
[MENTION=131453]Eerlumni[/MENTION]. That's absolutely nutty. He's probably just frustrated. Have him call me if he still thinks he needs to pull the engine. Don't worry, he's incorrect :) Does he have the install instructions? A lot of the time, and don't ask me why this is, many techs don't think they need to read the instructions, but these are not the run of the mill chevy install. Make sure he has the instructions, and if for some reason he doesn't there are in PDF from on DT website. If you need me to CALL him for you, let me know.
 
Are you talking about the gasket between y-pipe and catback? This is the one that I ended up using with my URD Y-Pipe and DT longtubes.

17451-74051 - Toyota Parts Deal)


For me, when I had the short tubes, my shop had welded on a typical three bolt connector, so not OEM. Whatever gasket they used kept blowing out on me. I ended up ordering one from Remflex and that seemed to be doing fine until I got the long tubes installed.
 
[MENTION=131453]Eerlumni[/MENTION]. That's absolutely nutty. He's probably just frustrated. Have him call me if he still thinks he needs to pull the engine. Don't worry, he's incorrect :) Does he have the install instructions? A lot of the time, and don't ask me why this is, many techs don't think they need to read the instructions, but these are not the run of the mill chevy install. Make sure he has the instructions, and if for some reason he doesn't there are in PDF from on DT website. If you need me to CALL him for you, let me know.

Lol. When I had the long tubes installed, I went to the same shop that did the short tubes. It ended up going to the same tech to install. When I was dropping the car off, I ended up passing my keys directly to him and he was shooting daggers at me with his eyes. I've never attempted this, but I think it does take a little finesse.

To your point, Jason, I certainly could not imagine pulling the engine to do it. As you've said, the tech must be having a moment.
 
I installed mine in my garage with no real issues. DT's instructions tell you to unbolt the motor mounts to lift the engine slightly, I lifted one side 1" & then the other to get the headers in. That's two bolts per side, no big deal. Starting the nuts, there were two or three on the center tubes behind the shock tower that you had to do with the index fingers of both hands. Torque wrench, I was only able to get on about half of them, the rest I matched by feel with a flex head box ratcheting wrench. Std sockets are too short to clear the studs, deep sockets interfered with some of the tubes. Somebody mentioned the Sunex swivel impact socket fit really well. The air tubes are in the way, so 05 and newer like mine are a little trickier.
If they think they need to pull the engine, you are at the wrong shop.

I'll also say, the more I drive it the better I like the LT, Y pipe & Gibson setup. I wish I would have bought the side exit version but didn't know any better when I bought it.
 
Last edited:
Titanium hardware

Anyone who was waiting received their hardware or heard of any updates yet? Just arrived home from 2 weeks at work, headers were delivered last week, but no Titanium.
 
Anyone who was waiting received their hardware or heard of any updates yet? Just arrived home from 2 weeks at work, headers were delivered last week, but no Titanium.

Nothing yet. I haven't even opened the headers since there's no point to planning for the install if I don't have all the parts to do it.
 
Nothing yet. I haven't even opened the headers since there's no point to planning for the install if I don't have all the parts to do it.
Yea I opened mine up to make sure I received the 03'-04' LTs, and not the later version. Everything seems to be included as far as instructions, gaskets, flange hdwr, etc.

I still haven't had my mail delivered from 2 weeks on hold, so the Titanium hardware might be in there. Anyone get theirs USPS?

I did receive 2 DT decals with the headers that I didn't get with my Y pipe last year. Come on DT! Spread some swag around!!
 

Attachments

  • 20200127_085842~2.jpg
    20200127_085842~2.jpg
    128.7 KB · Views: 633
Anyone know a good replacement gasket for the collector flange at the back of the Thorley Y-pipe?

...or do I need to order an OEM donut gasket?

The long tubes are supplied with gaskets for manifold and collector. The y-pipe Doug Thorley has told me they recommend customers to reuse the factory as they are not supplied. My contact at DT says you can use the OEM from local Toyota dealership for that Y. So, people have been using Remflex?

To your point, Jason, I certainly could not imagine pulling the engine to do it. As you've said, the tech must be having a moment.

Yea, lol. That would be insane. If any tech tells you they need to pull then engine to install your headers, pull him aside with a nicely printed out version of the install instructions :)

Yea I opened mine up to make sure I received the 03'-04' LTs, and not the later version. Everything seems to be included as far as instructions, gaskets, flange hdwr, etc.

I still haven't had my mail delivered from 2 weeks on hold, so the Titanium hardware might be in there. Anyone get theirs USPS?

I did receive 2 DT decals with the headers that I didn't get with my Y pipe last year. Come on DT! Spread some swag around!!

353136d1580134068-group-buy-doug-thorley-premium-version-headers-need-20-people-20200127_085842~2-jpg

Sexy pic! Looks good. Yes, the Titanium hardware has to ship separate. My plan originally was to ship everything to Doug Thorley and have them put it in all the boxes but it couldn't be done that way so shipping the Titanium hardware out separate, etc. Anyone can text me at 717-319-2100 if you are still waiting on hardware and I'll check for ya.
 
The long tubes are supplied with gaskets for manifold and collector. The y-pipe Doug Thorley has told me they recommend customers to reuse the factory as they are not supplied. My contact at DT says you can use the OEM from local Toyota dealership for that Y. So, people have been using Remflex?
I used Remflex PN 7021 last year when the Y pipe was installed. [MENTION=120292]Brian3676[/MENTION] from your thread recommended them. They have worked fine. Thanks for the text back this morning Jason. I'm ready to bust some knuckles and get these LTs installed.

-Brett
 
I’ve received my hardware after probably being more of a thorn in Jason’s side than I should have been (sorry Jason), and I’ve got everything at a shop getting installed. I wanted to do it myself, but it’d be March before I had the time, and I’d rather just get it done if I’m going to have to be taunted by parts in my garage for 2 months.

They’ve had a bit of trouble getting everything ~just~ right. They’re on their THIRD day. Apparently they got everything together and then felt like the bolts weren’t quite right and pulled a lot of it off to re-torque the studs and go again.

Hoping to have it around lunch tomorrow. I’m wondering if they’ll go with their quote price or do an hourly rate. I’d feel bad if they gave me the quote price, honestly. They’d be losing money for sure.

Here’s hoping the rest of y’all have smoother installs than they’ve had! I’ll post some pictures with the titanium bits once it’s all said and done.
 
I’ve received my hardware after probably being more of a thorn in Jason’s side than I should have been (sorry Jason), and I’ve got everything at a shop getting installed. I wanted to do it myself, but it’d be March before I had the time, and I’d rather just get it done if I’m going to have to be taunted by parts in my garage for 2 months.

They’ve had a bit of trouble getting everything ~just~ right. They’re on their THIRD day. Apparently they got everything together and then felt like the bolts weren’t quite right and pulled a lot of it off to re-torque the studs and go again.

Hoping to have it around lunch tomorrow. I’m wondering if they’ll go with their quote price or do an hourly rate. I’d feel bad if they gave me the quote price, honestly. They’d be losing money for sure.

Here’s hoping the rest of y’all have smoother installs than they’ve had! I’ll post some pictures with the titanium bits once it’s all said and done.

So im wondering what exactly wasn't right with the bolts? Im waiting on the titanium hardware also and now im rethinking that decision. are they more trouble than what they are worth? maybe I should just buy new oem studs and nuts instead of waiting on the $150 titanium hardware.
 
So im wondering what exactly wasn't right with the bolts? Im waiting on the titanium hardware also and now im rethinking that decision. are they more trouble than what they are worth? maybe I should just buy new oem studs and nuts instead of waiting on the $150 titanium hardware.

I don’t think the bolts themselves were the problem. I think they didn’t get the studs tight enough before they put the flanges on - the titanium hardware was impressive.
 
I don’t think the bolts themselves were the problem. I think they didn’t get the studs tight enough before they put the flanges on - the titanium hardware was impressive.



13d671923ab49f78c8cd37c51060f687.jpg


Got my 4runner back today! I found out the mechanic that started the install had a medical emergency (whole day in the ER after a bad reaction to new medicine) Tuesday, so that was a huge part of the extra time.

They ended up practically doing the install twice because they didn’t read the instructions. Had it almost all together and removed it all before realizing that they just needed to raise the engine to get clearance.

The titanium hardware looks great, and their only complaint was that it’s not magnetic so if you drop it, you can’t pick it up with a magnet stick.

I’ve also got to undo how they did the O2 sensors. They put one on each bung, instead of double stacking on the rear pair of sensors. No biggie - just hoping the front sensors aren’t melted from their closeness to the heat shield currently.


Sent from my iPhone using Tapatalk
 
Drove it for the 1st time just now with the long tubes/Y pipe, I already had the Gibson cat back. I'm surprised how quiet it is. under 50mph cruise is as quiet or quieter than stock. Sounds very healthy when you push the loud pedal.
I used the ebay 90 degree CEL eliminators with catalyst at the tip. No CEL's & with them pointed to the rear the wires plugged in perfectly without having to unclip the wires from their brackets.
I did something else that I wasn't sure how it was going to work out, I used a 3/8" NPT tap in the end of the air tubes & screwed in brass plugs. Left the air injection open as I have the electrical bypass. Seems to be fine.

Would you mind showing a link for which eliminators you used? Should be the last part I need for this job
 
Great pics in here!

Hardware for those who haven’t got shoot me message at 717-319-2100 with your shipping zip and I’ll check.

Hey Jason, I've shot over a couple of texts with no reply. I'm still waiting on my headers, hardware, and O2 cel eliminators. Gibson box showed up months ago. Seems like everyone is receiving parts, just making sure everything is still fine for my order.
 

Members online

Forum statistics

Threads
278,316
Messages
3,554,120
Members
248,016
Latest member
Advally Service

Trending content

Back
Top