Yeah i have the headers on my car. I haven't taken the car to the dyno yet but will post results when i do. Here are some pics from my cell phone cam. The car is suprisingly quiet at idle and normal driving until you get on it.

PPE also made headers for the Celica GT-S and it made decent gains -- highest of any ever made for the 2ZZ motor in fact. I wouldn't dismiss them out of hand.

My only recommendation would be to make sure the flanges are even or replace them with v-band clamps, although, I'd make the same recommendaion for any header...

Get a baseline dyno first before you install them!

I talked to them about somethings and ran into this product when they were prototyping it. looks and sounds good. I didn't have the extra coin to pick up any headers yet, because if I did one of the two would have been installed a while ago.
Staying tuned for results.

updates?...

With the PPE Headers I got an additional 18hp.

Over what? Stock cats and headers?

Dyno sheets?

Yeah -- and did you change anything else besides the headers at the same time?

interesting..i wonder how these would sound with a Meisterschaft exhaust..hahah!

.... what? :icon14:

:iagree:

That was my same reaction, you definitely don't get any power gains by running different oil. I'm running Motul Power Racing 5w30, hands down the best and most expensive oil I've ever come across. It's very smooth and along with the oil cooler keeps the temp below 215 at all times, but it definitely didn't give me noticeable whp hahahaha.

Seriously... if you're lucky, 2-3 whp with a really slippery synthetic.

Although I did pick up 6-8 whp using Polydyn in my old S/C'd 2ZZ...

(No, I am NOT recommending anyone experiment with any oil additives in their nice new VQ37 motor.)