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Discussion Starter · #1 · (Edited)
UPDATE ** QTP Tri-Y Headers on Z06 ** ADDED new ET

Hey ya'll,

Finally got the QTP Tri-Ys installed on my '04 Z06. Sorry for the delay, but work was sending me all over the place the past couple of months.

Before we get technical, let me tell you that THE CAR RIPS with these headers. Its an entirely new car, low end power is amazing and its difficult to keep in a straight line. Fit and finish is awesome and the headers went in very, very easy. The guys at ECS said these were the easiest of all the headers to install.

Anyways, before you look at the graphs, here is some info. I went 11.93 @ 119 in completely stock trim (including stock tires). Due to poor machining (the official Chevy determination), the motor blew at 11,200 miles, and was replaced under warranty with a new crate motor. Unfortunately, this install occurred with only 700 miles on the new motor, so the hp is still way down until it loosens up. The only mod on the car when the baseline was set was a VaraRam Vr1b, which is probably why the A/F reading is low.

Anyways, the second pull displays the headers plus tuning by ECS, nothing crazy here, just a base tune.

New best as of 3/19/05.. on street tires (F1 Supercars) at 23psi

Temp 50
Rel Humid. 49
Barometer 30.45

60': 1.760
330: 4.932
1/8: 7.512
MPH: 95.73
1000: 9.734
1/4: 11.611
MPH: 119.77

Any questions, feel free to post or PM.

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At 4700 rpms it was a gain of 36.8 hp and 34.1 tq
363.2-326.4=36.8hp
335.8-301.7=34.1tq
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Here are the graphs:

 

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Discussion Starter · #2 ·
updated with new et
 

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How much are the headers?
 

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Discussion Starter · #5 ·
SRV said:
How much are the headers?
Here's all the information you need regarding options and pricing.

QTP C5 Headers

Hope this helps!

-Chrish
 

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They look very similar to 4 or 5 other headers already on the market. :-?

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