Doug Thorley Long Tube Headers 4.0L 1st Gen

PRICE UPDATE!!!!I have a set of DTLT's with about 20k miles. They are in great shape will some minor scratches from installing and uninstalling. I have decided to go back to stock so these are up for sale. I have added the relocated bung kit from URD just like the 2nd gen headers. Per URD's website they have these headers listed as 05+ tacoma and 07-09 FJ. I don't think these will work on the 2012 or newer because URD has some DTLT's listed specifically for those years. I am asking $400 with the bung relocation kit that is install on these headers This price includes shipping within the USA. PM me if your interested.

 

These will go fast, even faster if I had the extra cash! Glws!

 

What gains to performance and efficiency do you expect to gain when adding headers?

 

I noticed a good increase from mid to upper RPM range. I really felt the extra performance around 4k to red line. I have a 6"lift and 35's on my truck so if you don't have that extra weight like I do you should really feel an increase. I got a little better gas mileage not much because of the lift and tires. It's hard unless you SC your motor to really help with that extra weight. When I had a 3" lift I felt great performance from these headers. Not much more on the low end but more up top.

 

Did the headers make the exhaust any louder?

 

yes

it deletes 2 cats

 

Why are you going back to stock?

 

Well I have a 1yr old son and with another little one on the way I can really use the money. Also the in cab exhaust note will be a little quieter. But one of the reasons also is that I like the bottom end torque of the stock manifolds. Since lifting and putting 35's on, the weight added to the truck a stronger lower end is what i'm looking for. Now when you press the pedal down you can tell with out a doubt that the truck makes more power up top. I just don't drive my truck that hard anymore.

 

BUMP

 

the 02 sims are not plug and play?

 

Not this one. I bought this one before urd offered the plug and play. It still works just the same. Just have to splice it.

 

Oh boy...... Not really ready for this just yet, but...

 

Price Update!!!

 

still got the headers?

 

Yep sure do.

 

Did you notice a differnce in MPG with these.

 

Not really either way. I have ran with and without them on and I get the about the same. With a 6"lift and 35's you get what you get

 

it there any difference in throttle responce?

 

Yeah. You will feel the increase in the upper rpm range.

 

bolt up to the factory system? or do i need to replace y pipe, etc