Did they say they have done these headers on a 4th gen V8 before and know what the job entails?

Yeah i was curious and asked him about it while he was welding some cats on for me


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Good experience. They provided me with all the bolts. Money well spent on those guys. 4 years later and still strong.

For someone else thinking about doing this (not the OP), I got Pacesetter headers installed in the Chicago suburbs in 2018 (?) for ~$750, and I also had a $75 coupon from them that I was able to use (~$675 net cost to me).

My relative who is a mechanic wouldn’t touch it. There was easier money to make doing brakes, tires, etc. where he worked at the time. (He wasn’t the boss.)

I’m sure you’re not looking for an answer anymore since this is over a year old, but I think whoever told you not to do the headers is wrong. Headers would likely be the single best thing you can do for performance. It will get you more than that intake and catback did.

Look into URD and their MAF calibrator, it essentially gives you a small tune.

As far as cats go, the short tube headers will utilize the stock cats and shouldn’t throw any codes.
Long tube headers will delete the front cats so you’d need some kind of O2 sim to get rid of the CEL it’ll throw.

Do you recall the name of the shop? Location?

Thanks!
JT

There is another option...I just did and it increases HP more than the headers (dyno proven btw). I had to remove my heads and completely rebuild my 05 v8. So I took the factory exhaust manifold and completely hollowed out the cats and had the manifold braced, machined flat and tig welded together to avoid leaks. Then I removed both rear cats and got the URD crossover pipe and installed 2 of my cat-caps on the rear o2 sensors. I have absolutely no catalytic converters, throw no codes and have more power and MPG than the DT headers at 1/3 the cost and pass california smog. When its smog time I install the rear cats and crossover pipe for an argument free smog experience. Passing california smog with anything installed anywhere on a v8 4runner is impossible so this was really my only option. Just wanted people to know that there was another option that used factory parts and not that rusty ass garbage metal from DT.

After viewing the rusted DT "stainless" header pics on v8 4runners I will never buy anything from that company ever again.