2015 Mustang GT Stock Intake vs. Boss Intake Dyno Test 

I put a Boss 302 intake on my '13 GT along with a BBK 90mm throttle valve. Also I run stock headers with off road x-pipe and a tune of course.. The difference on full throttle redline pulls are pretty great, from the butt dyno. Even here you can see about 40 hp increase above 7200 rpm and the power stays steady after 6500 rpm. My car seems to really explode in power around the 5200-5500 mark. When doing full throttle redline pulls in 1st, 2nd and 3rd the car only drops to 5 grand or so and back up to your chosen redline. I redline mine at 7200 max since the clutch sticks above that. In my opinion the intake is a great mod for showing the max acceleration of the car and under the hood appearance. Even after more than a year I still say "man this pulls up top" (different language though) when I "put the pedal to the metal"...LOL.

Damn, ~500hp with just intake, exhaust, and tune. That's awesome.

I've been telling people for 3 years that coyotes are faster with a stock intake. Proved it for myself back then.

lost a ton of power and torque all the way until 6500rpm.. ya not thanks

I beat up on boss intake cars a lot with a stock intake,with a ported opening just behind the throttle body,ford left an awful lot of crap/junk in the way behind the blade......trust me its worth the time to remove the intake-clean it up and re-install

What you win in horsepower, you lose double in torque. Must say, great upgrade.

what do you thing about BMR's adjustable motor mounts. I wonder if the boss would fit then?

Lund Racing I'm curious if the hood would fit with the Boss 302 intake and the Steeda adjustable engine mounts at their lowest positions. Would a strut tower fit or is that out of the question?

Good mod IF, you want to rev out your 'Stang and have other mods done first like a full exhaust, cai, and a good tune.

Were you guys able to close the hood? I am ready to swap my intake.

Those intakes were designed for two different engines..although they do share the same 5.0 engine block..internals are very different..(the head for the Boss has been ported, etc, etc..)

is this a bolt on with no other modifications needed? and where can i find the tune for this intake?

Did you guys not have to notch the stock hood for the boss intake?

Does the 2015 manifold work on the 2014s would it offer better gains then the boss!

Stock intake rocks with the torque not falling off, im sure ford made some improvements

High Lund. Is safe 7800 RPM on stock Mustang with intake and long tube headers? My car is making power before 7000+ RPM

proof this mod is worthless. thanks!

Is it faster with induction? 0-60? 1/4 mile??

I'm curious as to how the SCJ intake would perform

thanks for the comparison. i think the cobra jet intake u gain hp and torque than on the boss. But not sure with the 2015 if the price vs hp gain is worth it... I'm going to stick with a cai, tune and exhaust.

nice video, thanks

Not worth the price for that particular configuration. Performance on the street would likely take a hit. The Boss would probably perform better in the 1/4 mile. I would put my money on the Stock intake on a road course/track day scenario.

i have he 2015 gt, how do i make this fit, everywhere i see the Boss 302 manifold it says its only for like 2010 up to 2014 how did u guys make this one fit? and does the hood close???

you have to remember it says boss on it LoL ...who cares if it made any gains or lost gaines all over the place .

Not worth it how often are you gonna be at like 8k rpm on the street? Lol

Cabor Intake???

ok wait, the stock 15 was supposed to only have like 5 hp more than the 14 and that's at the crank, how is this possible that it's clearly more or is it due to less loss at the wheels? still can't be though... oh well

The boss is better for lap time that the stoke so it doesn't need a lot of torque or you might over steer in the corners it's fun but not good for lap times

441 whp ??

Why do a Dyno pull in 5th gear. I thought 4th was 1:1 ratio. not 5th

7,500 RPMs !!!??!?!?

What else was done to this car to make that power on the stock intake?

This manifold is fantastic for a car that will see a lot of track time, with a centrifugal blower and an automatic. Each gear change will keep it up there in the powerband. Could possibly make it more streetable if a proper cam combo was made for the build. Especially with the gears from the Performance Pack, the 3.73’s would keep it up there nice. For those saying about your lose power on the street, sorry, the vids glorify the street racing but it should be kept off the streets. Too many racers getting arrested and even a few people getting killed. 🇺🇸💪👍🦅

Why is the hp so low

well unless im getting Alzheimers red equals stock blue boss......right? ok well red/stock made more power and torque through the whole curve minus the extra rpm they added for the boss intake? therefore average is moot because the stock mani was not revved to 8k ....... average seems to be a dumb selling point. could say hey look you get to revv out to 8k and not LOSE power. unless im am losing my mind. feel free to correct me

Mine is for sale. 2018 ported

Looks like you went backwards. Good job!

Keep in mind this is untuned and the boss 302 isn't meant for straight line power alone. The power here is much more linear and more usable when cornering is in the equation. This is a very functionally designed manifold...So yes for you straight line guys this probably is not very useful.

👏

So you lose 16 ft lbs of torque for a 5 hp gain. No thanks.

Seems like the Boss would be the better track intake but the stock intake would be better for the street.

Needs a better tune.

So your telling me for only like 300 dollars and several hours labor i can lose 20 Tq and hp everywere in the curve but a 500 rpm window. Shit im sold, give me 3 of em.

So sad cause it's such a nice manifold.

Bad tuning combination for daily driving !

Bad deal!Losing so much Torque just for some more HP at top RPM...just rofl. U wont win any dragrace vs a Stock Pony

Hardly seems worth it, only a 7hp more average with an additional 800 rpms. I have a boss intake on my 12 and will soon be going back to a stock intake. When I do the motor, heads, cams, etc, THEN I may do a cobra jet I take.

get Shelby intake

Its not worth 5 horsepower lol

Revving to 8000 rpm could've easily blown the engine with stock internals. Pretty stupid and pointless.