wow, TRD Headers are hard to find!!

They're not that hard to find!! Every time I go looking for some, I find a set right there in my driveway. :cheers:

P7060979.jpg~original
 
matthinnant said:
I have the OBX headers and there were numerous things I hated about them when I was installing them like fitment and other things but I can honestly say that they do the trick, esp. if you get rid of those horrible gaskets they send you. If you dont have a S/C then save yourself the time,effort, and money but if you do have one then get you some OBX headers you can't go wrong for the money.
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So you feel a signifigant set-o-the-pants acceleration gain from the OBX headers?

BigFishAllDay- nice pic:hungry:
 
My OEM headers are rusted all to hell. Sometimes I want to change them out for something nicer...but I guess they still work. Some of the studs/nuts just look like blobs of rust.
 
that might be your opinion ronMaiden.. everybodys entitled to one.. but that seems to be the myth on this forum that headers are a waste of money for these motors and headers dont really do anything for na motors... which i can tell you having owned 3 LS1'
Click to expand...

I agree with RonMaiden. We are not talking about an LS1 here, the engine is a Toyota V6. I have Downey headers and yes I did notice a very small HP and low end Torque gain. Was it worth $1000-$1200? No. In fact I only bought them because the engine was already stripped down due to two bad heads so it only cost me $600 to add them.

Also you need to combine the headers with a high flow exhaust and intake if you want even those small results.

.
 
BrianSD_42 said:
I agree with RonMaiden. We are not talking about an LS1 here, the engine is a Toyota V6. I have Downey headers and yes I did notice a very small HP and low end Torque gain. Was it worth $1000-$1200? No. In fact I only bought them because the engine was already stripped down due to two bad heads so it only cost me $600 to add them.

Also you need to combine the headers with a high flow exhaust and intake if you want even those small results.

.
Click to expand...






How do these part numbers differ?

And how does this apply to a 2 cat California exhaust system?....


. . . .
 

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jblazy18 said:
that might be your opinion ronMaiden.. everybodys entitled to one.. but that seems to be the myth on this forum that headers are a waste of money for these motors and headers dont really do anything for na motors... which i can tell you having owned 3 LS1's and being huge into modifications and performance parts for camaro's.. is totally wrong.. with good headers like the kooks long tube headers LS1's can gain up to 12-15hp. Thats serious horsepower left out on the table. while headers might be more beneficial for certain motors than others, they still benefit the motor.. yes i know headers are a pain in the arse to put on these motors, but im willing to put in the time for a maybe a 5-6hp.. and im talking at the crank not the wheels.. im not looking to make this thing as fast as an LS1.. but to gain 1 or 2 mpg while gaining a little bit of horse with it is worth it to me, especially considering the aftermarket for these motors is slim to almost none. i know just doing headers and having a stock exhaust will just almost defeat the purpose of the headers, which is what i think allot of people on here do, just bolt up some headers to a restrictive oem exhaust and then complain the headers didnt do anything...but my point is headers are worth it, you dont need a supercharger if your going to put on headers, and yes headers are beneficial to just about any internal combustion engine out there....not all...but most

Dous - ive been reading on guys bashing the welds on these headers, being a welder the welds look more than decent for stainless steel but i know the constant heating and cooling does do damage to welds.. or any metal for that matter..... that and fitment issues have been brought up... did those obx's bolt right up?
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Longtubes (nd tune for the new part) on a v8 of course will net a larger gain than on an engine with less hp. Think of it more as a percentage of current Hp , give or take based on design of engine and stock part. but + or - 4% increase on a motor that makes maybe 180hp is like 7hp.

That being said even 12-14 hp increase is negligible at best, the whole purpose of exhaust is that as you continue to mod its going to increase the possible hp increases. I get the every little bit counts, but adding 12hp is something you wont feel, and seat of the pants feeling is in your mind not in actual performance.

The reason the aftermarket is slim for these cars is they are slow, heavy, SUVs with an underpowered engine. They dont make parts cause people dont buy them.


ive had multiple 500+hp LS1s and have a progarched TA currently. Putting money into bolt ons for these cars is pretty pointless. If you wanna go fast, gotta do an engine swap or boost the current one (and even that is just gonna make you slightly less slow..)
 
jstim said:
Does anyone even know if these fit, or are an option?
Doug Thorley Headers - SHIPS FREE - AutoAnything
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Is there a history of those not working? They have a breakdown for 3.4 4runner application, as well as 2.7.

$700+ for mild steel headers though? For that kinda cash, I'd be aiming for something ceramic coated personally. What do you gain on these engines with a header swap, 10-15 hp? A lot of cost/labor unless your longblock is pulled to install something that will give marginal gains.
 
99Runnr said:
Is there a history of those not working? They have a breakdown for 3.4 4runner application, as well as 2.7.

$700+ for mild steel headers though? For that kinda cash, I'd be aiming for something ceramic coated personally. What do you gain on these engines with a header swap, 10-15 hp? A lot of cost/labor unless your longblock is pulled to install something that will give marginal gains.
Click to expand...

They are ceramic coated. It's an easy & cheap mod on the 2.7.
 
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