How much power from headers?

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Jun 22, 2007 | 05:21 PM

AFR VETTE

Thread Starter

Racer

Joined: Oct 2005

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From: NY

How much power from headers?

Im having headers installed this week, im wondering how much power i will pick up. I currently have BB bullets, Vararam, CoW tune, 4.10 gears, and a hurst shifter. Will i feel the power of the headers? Also will it make my car louder?
Thanks
Adam

Jun 23, 2007 | 08:56 AM

Ben Diss

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St. Jude Donor '08-'09

You're getting a tune again after the install, right?

Headers make it sound a little different, but not necessarily louder. It's deeper with more "throat".

I just put on headers, CAI, thermostat and a tune and picked up 27 horses.

-Ben

Jun 23, 2007 | 10:09 AM

tjwong

Le Mans Master

Joined: Jan 2003

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From: Portland Oregon

Quote:

Originally Posted by AFR VETTE

Around 370 or there abouts.

Jun 23, 2007 | 11:52 AM

mikesul

Drifting

Joined: Feb 2006

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From: Deerfield Beach FL

With the Bullits it definately will get louder with the header install.

Jun 23, 2007 | 12:07 PM

JFTaylor

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From: Virginia Bch VA

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St. Jude Donor '06

Quote:

Originally Posted by tjwong

Around 370 or there abouts.

Saw a 05 MN6 Z51 - LGs/no cats; VRAM; Borla Cat Back; 3.43 rear tune to 375 last week in NC.

Jun 23, 2007 | 12:12 PM

onebadcad

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From: NOBROCOSOFLO

Quote:

Originally Posted by JFTaylor

Saw a 05 MN6 Z51 - LGs/no cats; VRAM; Borla Cat Back; 3.43 rear tune to 375 last week in NC.

Dead on!!!
I got 375RWHP/365TQ with Kooks 1 7/8 (no cats), VRAM, B&B Bullets and Dyno Tune.

Jun 23, 2007 | 08:13 PM

LS2-Zomb!e

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From: Kuwait

I have American Racing, gained 13 hp.

Jun 25, 2007 | 09:52 PM

Ben Diss

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St. Jude Donor '08-'09

After putting on a few hundred miles now, I'd have to agree that they are louder, even on the stock exhaust. Not at idle, but when you get it on it, it rips a bit.

Here's the result of adding Kooks headers w/high flow cats, Callaway intake, 160 'stat and tune at Cartek.

Last edited by Ben Diss; Jun 25, 2007 at 10:15 PM.

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Jun 25, 2007 | 10:05 PM

cool07

Instructor

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I got 379 HP / 377 torque at the wheels with American Racing Headers, LPE intake & a tune on my 07 Z51 M6.

Also, the torque in the 2500-5000 rpm range is up more than the peak numbers

Jun 25, 2007 | 10:31 PM

#10

mitchm11741

Racer

Joined: May 2007

Posts: 260

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From: Holbrook NY

Quote:

Originally Posted by cool07

I got 379 HP / 377 torque at the wheels with American Racing Headers, LPE intake & a tune on my 07 Z51 M6.

Also, the torque in the 2500-5000 rpm range is up more than the peak numbers

What is the estimated stock HP/TQ at the rear wheels??

Jun 25, 2007 | 10:43 PM

#11

cool07

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Didn't do a baseline, but I gather somewhere in the 345 range for both HP & torque is typical for the M6 transmission

Jun 26, 2007 | 12:20 AM

#12

Donuts

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From: Okiehoma

Quote:

Originally Posted by Ben Diss

I'm going with same set-up but with Dynatech headers next week.. What is the seat of the pants effect??

Jun 26, 2007 | 08:58 AM

#13

Ben Diss

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St. Jude Donor '08-'09

Quote:

Originally Posted by DonutsZ51

I'm going with same set-up but with Dynatech headers next week.. What is the seat of the pants effect??

I'd really like to say that I could feel it, but the difference between 400 HP and 428 HP isn't something my bottom can feel. I've just barely got 1000 miles on the car now so I'm too new, I think.

-Ben

Jun 26, 2007 | 10:07 AM

#14

Donuts

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From: Okiehoma

Quote:

Originally Posted by Ben Diss

I understand. By the way, I think you may have 42 extra horses now.. instead of 28.. nice vert by the way

Jun 26, 2007 | 10:14 AM

#15

bunk22

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From: Corpus Christi Texas

I dynoed 378rwhp/358rwtq SAE with Kooks, Stinger, Corsa cat-back and tune. That dyno was known for making lower torque numbers but I think the hp was right on. My 1/8th mile also improved a best of .3 and 3 mph.

Jun 26, 2007 | 10:17 AM

#16

JFTaylor

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From: Virginia Bch VA

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St. Jude Donor '06

Quote:

Originally Posted by Ben Diss

I watched Ben's pulls. Great sound. WIth only 500 mi Ben, you're bearly broken in. I would expect that you'll pull another 5-10 @ 2.500 mi when she's fully broken in.

Like fine wine Vettes get better with age.