yodaboy4life

ok i have a 90 toyota pickup 4x4 sr5 yada yada with the great power house of a 3.0 and i was wondering what is the best way i can go for a good header and exaust for a gain in all areas gas mileage tourque and power i have tryed alot of different exaust but i just want to hear what other have to say on what works best for them i dont care what im going to pay as long as it is going to be worth it thanks

idanity

whatever you decide, i will advice on long tubes.
as my headers on my bmw are "shortys", and the gasket that connects the 4 pips has blown out at least a dozen times.

i ended up re-surfacing them (even though they were new) and used orange silicon added to the last set of gaskets.
= P.I.T.A.

long tubes for me from now on.
i too am planning the headers on my 3.0 too, (keep the engine bay cooler is always beneficial)

take some pix for me.

4Run_95

Ive heard that headers can increase bay temperature, this cant be true?
Im also planning headers, is it possible to make them yourself?

(sorry if I hijacked..)

jason191918

Pretty sure that would be a bad idea. There is a lot of research and engineering that go into those.

idanity

NOT true, headers lower temperatures, due to NOT being a hunk of cast iron which disapates heat slower and with more mass, will generate more heat.


yes, you can bend your own headers, but like above reply, is a huge undertaking. the specifications are beyond my scope of knowledge.

AxleIke

Again.

Stock is your best bet.

Bolting an exhaust and all that crap will buy you a cool sounding truck. You will see about dick in the areas of power, torque, or mpg. If you want power, torque and better mpg, swap in a 3.4L.

Exhaust, intakes, all that crap, is a total waste of money on a naturally aspirated engine. Get something with a turbo or supercharger, and you'll have a case.

stormin94

Not entirely true. With my headers and exhaust, I saw AT LEAST a dick and a half more HP, Torque and MPG.


If you want a better sounding rig, get em. if your after MORE then 5-10HP, and MORE then a half an MPG at best, then you are setting yourself up for disappointment. Because your only gonna see small gains, and if your on a budget, that setup will cost ya some serious $$$$$.

EDIT: Dont get me wrong, though. I'm TOTALLY HAPPY with my results, and would recommend this mod for just about everyone despite the high price of the headers.

fillsrunner4

Ceramic headers are the best to keep engine bays cool. Chrome not only warp color but can get the bay hot as well similar to cast iron. Headers for the 3.0 are a waist. plus youll never get power out of that motor

AxleIke

Ah. Well, you live at sea level.

fork

living at sea level has its perks

i seriously doubt any of the bolt on stuff i have makes much of a difference other than cooler #5 and #6 temps and having a toyota that you can hear a half mile away when it revs past 3k.

infiltrator

im looking for an exhaust pipe for my truck. at autopartswarehouse they have some nice ones for like 40 bucks ($$ i know) but the rest of my runner is chrome, i gotta do it.

as for the sound, i dont know about your truck, but mine is pretty deep (maybe this is a bad thing)...

4Run_95

Well, I just want to keep temp. down to save HG etc, is there another or better way then headers?

89pickupsr5

i'm pretty sure i'm goin with LCEenginering headers and exhaust i don't think borla makes an exhaust for our trucks anymore or at least i cant find one on the web. 2.25 most likley for me. i just can't picture myself bolting those stock manifolds back on. duals would be nice too(but not on the wallet)

infiltrator

ive never had to change my headgaskets

back when my dad bought the truck, the 95's had a reacall on the headgaskets. so i have new toyota headgaskets and they have never failed me.

runethechamp

Ummm, the engine generates the heat, not the headers. I would tend to say that more mass in the headers would provide better insulating properties and hence lower temperatures. Slower dissipation of heat means a cooler engine bay.

mr toytech

i have the thorley headrs and dynomax ultraflow muffler and high flow cat. i love it all and it sounds great.

Snipes4ever

I like my Downey headers, they do run right against the floorboard of the passenger side but it never gets hot. I wrapped a peice of exhaust shielding off a newer Chevy Trailblazer and it protects all the wires and lines running next to the frame. As far as power gains, the exhaust is the only thing that has done anything for my truck, idk if it was worth the money i spent but it is the best mod i've done and it has a bit more power. When i rebuilt my engine, i wrapped my headers and it keeps the engine bay ALOT cooler. My total was about $950 for the headers, muffler, cat, and having the exhaust installed from the headers back.

bigarms23

I like what i am running i have a freeflowcat to a 2 1/4 flowmaster super40

AxleIke

Run that by me again?

Radiators dissipate heat quickly.

By your theory, we should get rid of those, and get something that retains the heat for a long time.

Targetnut

I think the 3VZE would gain more from headers than most applications due to the poor original exhaust manifold configuration.

Of course to maximize the effect of the headers some other mods would be necessary, and to get the full benefit of those mods you'd need to do even more.......

I think you get the Idea.