-WXM- Akrapovic Evo Exhaust = 22whp gain on a STOCK C7 Z06!
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Safety Car
Joined: Jan 2012
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From: Cin City
St. Jude Donor '14
-WXM- Akrapovic Evo Exhaust = 22whp gain on a STOCK C7 Z06!
You guys have asked me what the Akrapovic is good for? Tony brought his brand new Race Yellow Z06 vert up to us to do some warranty friendly mods. The car baselined just shy of 600whp and I'll share more on the rest in a separate thread for him, but a back to back dyno of just the Akrapovic Evolution exhaust netted a 22.5 WHEEL HP gain!
This was without any tuning changes. Up next is the Halltech intake addition, along with our WXM heat exchanger and B3R 2 gallon tank!
*Wideband wasn't hooked up on this one so AFR isn't accurate*
This was without any tuning changes. Up next is the Halltech intake addition, along with our WXM heat exchanger and B3R 2 gallon tank!
*Wideband wasn't hooked up on this one so AFR isn't accurate*
Melting Slicks
Joined: Jun 2013
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From: Pittsburgh PA.
Thread Starter
Safety Car
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From: Cin City
St. Jude Donor '14
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Safety Car
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From: Cin City
St. Jude Donor '14
Tq and HP are functions of each other, thus the reason they always cross at 5250rpm. Gain more HP in the upper RPM band and the torque will fall off more on the graph.
Torque and horsepower relations:
T = HP * 5252 / RPM
HP = T * RPM / 5252
RPM = HP * 5252 / T
* Torque values are in foot pounds.
No, the axle back requires cutting the stock x pipe and slipping on their adapters which do not come with the Evo system
Burning Brakes
Joined: Apr 2015
Posts: 769
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From: Tucson AZ
You guys have asked me what the Akrapovic is good for? Tony brought his brand new Race Yellow Z06 vert up to us to do some warranty friendly mods. The car baselined just shy of 600whp and I'll share more on the rest in a separate thread for him, but a back to back dyno of just the Akrapovic Evolution exhaust netted a 22.5 WHEEL HP gain!
Burning Brakes
Joined: Apr 2015
Posts: 1,176
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From: DFW Texas
Former Vendor
Joined: May 2014
Posts: 3,311
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From: SAN FRANCISCO CALIFORNIA
Axle backs are both the same
Tq and HP are functions of each other, thus the reason they always cross at 5250rpm. Gain more HP in the upper RPM band and the torque will fall off more on the graph.
Torque and horsepower relations:
T = HP * 5252 / RPM
HP = T * RPM / 5252
RPM = HP * 5252 / T
* Torque values are in foot pounds.
No, the axle back requires cutting the stock x pipe and slipping on their adapters which do not come with the Evo system
Questioning our testing methods is like questioning my integrity bro. Temps were kept consistent at the start of the pulls. Don't come in here with your banter trying to push Corsa x pipes LOL. You have your Calaway threads for that
Tq and HP are functions of each other, thus the reason they always cross at 5250rpm. Gain more HP in the upper RPM band and the torque will fall off more on the graph.
Torque and horsepower relations:
T = HP * 5252 / RPM
HP = T * RPM / 5252
RPM = HP * 5252 / T
* Torque values are in foot pounds.
No, the axle back requires cutting the stock x pipe and slipping on their adapters which do not come with the Evo system
Questioning our testing methods is like questioning my integrity bro. Temps were kept consistent at the start of the pulls. Don't come in here with your banter trying to push Corsa x pipes LOL. You have your Calaway threads for that
Alll Temps are the same these are legit results. Thanks ben
Last edited by NORCAL-SS; May 20, 2016 at 01:56 PM.
Safety Car
Joined: Nov 2012
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From: North California
I see. What I really wanted to ask was for a dyno sheet with all the stock catalytic converters on. How much of the gain is due to removing the cats?
Last edited by SBC_and_a_stick; May 20, 2016 at 02:41 PM.
Race Director
Joined: Apr 2009
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From: SE TEX
Many people like the weight reduction, HP increase, sound and look of the Akra exhaust. I dreamed of putting them on my C6Z but never got a chance. I heard them on a friends and
they sounded awesome 
Safety Car
Joined: Nov 2012
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From: North California
To me it's the best mod for the C7, literally trade off free improvement in performance in every possible way. If I had a garage queen I'd get the exhaust tomorrow! No way i'm risking it on the track though.
Burning Brakes
Joined: Apr 2015
Posts: 1,176
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From: DFW Texas
They would have to be tested on the same equipment under the same exact conditions.. Have not seen that done.... Marketing and the Dyno on the car are tough to do. If it is not done on a test stand it is not an accurate comparison....
Drifting
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From: Fort Worth TX