anxiouz

iTrader: (9)

I agree that the real gains are simply from removing the restrictive cats.

You may want to dig up threads by user Lou (lowrider). He's got headers and a cat-back exhaust but with custom high-flow cats and maybe something custom near the muffler side. He's tried a few things and is easily one of the most knowledgeable here (in general).

mcauley

iTrader: (2)

this is my stock run

aWorkOfArt

^ Impressive numbers you got there!

Defratos

WOW 380whp on a stock ISF?

Doesn't that sound way too high?

KOKISF

mcauley thats about right like I mentioned before , you are at 64.4 degrees F, im at 95 pluss degrees F and i dont know what sea level are you but i figure its diferent than mine i am at sea level... and wonder what fuel you guys use and if your emissions are the same than the usa ??? those aspects are the ones that hold the awnser for that big gain!!! enjoy

flowrider

iTrader: (9)

^^^^Also, it's a Dynomet Dyno. IMHO, the gold standard Dynamometers is the DynoJet. The one you used. Other Dynos that I have seen, seem to read optimistically high. Again, IMHO, the two measurements can not be compared.

BTW, I never did hear from you about whether you could send me an email with you graphs attached so that I can post them here for you. Let me know.

Lou

KOKISF

pm your phone and ill text them right now i havem on my cel

flowrider

iTrader: (9)

I received KOKISF graphs this morning and ported them to my Mac. I'll be the first to say I really don't understand them. I don't know what that scale is at the bottom? They show no torque curve and they appear to start up high in the rpm range. The second one has a funny blip in it. Anyway here they are. Thanks KOKISF.

Lou

RX7 RAGE

iTrader: (18)

It's suppose to be SAE and smoothing set to 5. STD settings will always yield more power.

Turizmo01

Great gains on just headers!

KOKISF

as for what i understand cero smothing is the accurate and atual curve it does not raise the power w the smoothing ste to 5 the power bumped up a bit the dyno was giving false torque reading dont know why it read 849 wt wich is not accurate , dont know what tha hell the blimp was no knockin or afr change was present , remember all i was looking is for tghe gain and it was 30whp so im a happy camper

KOKISF

the ah operator at the dyno put the graph power vs speed in miles wtf i never mind it since i was looking for whp gain

Rossi

iTrader: (4)

Anyone could provide me with a sound levels feedback on PPE/Sikky headers with Stock exhaust.
How much louder is this setup inside of the car?
I returned my Borla Catback system after three days because it was too loud for me.
Is this setup for me?
Anyone in SoCal with this setup?

Boma

iTrader: (4)

Fast forward to 7:21 in this video for a PPE headers and stock exhaust setup. You can get an idea of how it sounds compared to other setups. Can't really speak for the inside sound level but I heard it's only slightly louder than stock.

shyguyF

Have you read the #8 of this thread yet? Maybe the OP explains well enough for you.