2015 Mustang GT power curves (HP/TQ) on the dyno with Gibson exhaust (video)

BLKS550 · Sep 5, 2014

ADMIN UPDATE:

Our friends at Gibson have told us that the dyno they performed (below) was done on a Dynojet chassis dyno with a manual transmission GT. Exhaust system is a 3" catback with an X-pipe that utilizes their superflow mufflers, comes with 4.5" intercooled tips (available in black ceramic or polished finishes). We have asked them for clarification on which gear the car was run on, octane, ECU reset, cool down time, etc. Will update if they provide more details.

Their exhaust system will be on dealer shelves before the cars hit dealership lots. We'll be doing a giveaway contest on the forums soon, for one of their exhaust systems, so look out for that thread.

PRODUCT PHOTOS:

fionic · Sep 5, 2014

BLKS550 said:

IIIIIIIIINTERESTING

rikb53 · Sep 5, 2014

that's a great mod for the add'tl horsepower. when I put my Roush Stage III on my 12' , I asked for some kind of exhaust mod to open it up and was told there's no good reason to do that

jaja6009 · Sep 5, 2014

BLKS550 said:

Is this for an axleback exhaust? Seems a bit high. I would love for it to be true. Green apples compared to red apples, kinda reminds me of 2005 when the S197 came out. Way too many axlebacks were claiming high gains when in fact they probably added nothing. I know my FRPP stingers added an incredible sound but added nothing to trap speed.

We shall see.

fionic · Sep 5, 2014

jaja6009 said:
Is this for an axleback exhaust? Seems a bit high. I would love for it to be true. Green apples compared to red apples, kinda reminds me of 2005 when the S197 came out. Way too many axlebacks were claiming high gains when in fact they probably added nothing. I know my FRPP stingers added an incredible sound but added nothing to trap speed.

We shall see.

catback, look at the gibson exhaust pictures.

replaces everything suitcase and back.

Grimace427 · Sep 5, 2014

More questions than answers with that graph. 2015 or '11-14 5.0? Auto or manual? If manual was that 5th gear(1:1)? Why is the torque number so much lower than HP? SAE/STD? What exactly was changed for the 32hp gain? No catback has ever offered that much of a gain on a Coyote that I've ever seen.

Reds197 · Sep 5, 2014

NICE FIND!!! Stock manual 2014 averages 360 hp and 350 torque depending on weather and altitude. I wonder if this is auto or manual?

Brent302 · Sep 5, 2014

Oooooo can any of you photo shop gurus find a stock 2014 Dyno and lay it over this graph?

jeebuspwnz · Sep 5, 2014

jaja6009 said:
Is this for an axleback exhaust? Seems a bit high. I would love for it to be true. Green apples compared to red apples, kinda reminds me of 2005 when the S197 came out. Way too many axlebacks were claiming high gains when in fact they probably added nothing. I know my FRPP stingers added an incredible sound but added nothing to trap speed.

We shall see.

That's how it is with EVERY new car. As soon as it hits the market, vendors galore have dynos claiming 10, 20, 30 hp gains with "just" an exhaust or "just" an intake. A few months later, independent dynos show no appreciable gains.

It's easy to manipulate a dyno to your benefit. :tsk:

wproctor411 · Sep 5, 2014

Grimace427 said:
More questions than answers with that graph. 2015 or '11-14 5.0? Auto or manual? If manual was that 5th gear(1:1)? Why is the torque number so much lower than HP? SAE/STD? What exactly was changed for the 32hp gain? No catback has ever offered that much of a gain on a Coyote that I've ever seen.

No doubt as only long tube header back exhaust can get those numbers.

OppoLock · Sep 5, 2014

The dotted line is a stock S550 GT, right? I'm not impressed, a little confused even. Looks like its peak WHP figure is around 355. Assuming the usual 15% loss, that puts it a hair under 420. I don't know what I was expecting, but I figured this car would be underrated. Huge gains from a simple (?) change of exhaust though!

OppoLock · Sep 5, 2014

Resonator deleted and an X-pipe catback installed. A catback nets 30+ WHP? Sounds too good to be true.

fionic · Sep 5, 2014

OppoLock said:
Resonator deleted and an X-pipe catback installed. A catback nets 30+ WHP? Sounds too good to be true.

plus, those stock lines would indicate >20% drivetrain loss...

FelixGER · Sep 5, 2014

Someone here said that a solid axle has less loss than an independent one.

petraman · Sep 5, 2014

32hp gain from a catback? That has to be an anomaly. I wonder if the first run was heat soaked or something.

2015 Mustang GT power curves (HP/TQ) on the dyno with Gibson exhaust (video)

BLKS550

Member

fionic

spaghettios and cheerios

rikb53

Member

jaja6009

Well-Known Member

fionic

spaghettios and cheerios

Grimace427

Well-Known Member

Reds197

Well-Known Member

Brent302

Well-Known Member

jeebuspwnz

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wproctor411

Well-Known Member

OppoLock

RWD Addict

OppoLock

RWD Addict

fionic

spaghettios and cheerios

FelixGER

Well-Known Member

petraman

Now with more MPGs!

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