Tag Archives: 2011-2014 Mustang

2011-2014 Mustang BBK 85mm Throttle Body Test

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Can your 2011-2014 Mustang GT really benefit from a direct replacement BBK 85mm Throttle Body Upgrade? The answer is yes and no. It seems to depend on a few situations as if, is your Mustang stock, or does it have some horsepower increasing mods. We decided to give the BBK 85mm throttle body a try. We bolted it on our own 2012 Mustang GT and also tried it on our neighbours 2011 Mustang GT to see what actual benefits we could obtain from two different setups. The 2011 Mustang GT was totally stock right down to the tires and had an automatic transmission. Our 2012 Mustang GT was mildly modified sporting a tune and CAI (cold Air Intake) with some suspension and wheel/tire upgrades and also has a 6 speed automatic transmission.

Since the 2011 Mustang GT was totally stock, we decided to start with that set up first. The procedure for removing the stock Ford 80mm throttle body and replacing it with the BBK 85mm throttle body is very easy and straight forward, so I will not go through the actual install steps, really only took us 20 minutes to do. The BBK throttle body went on without any issues and the car started right up nice and easy, idled smooth. The coyote 5.0 motor seem to idle about the same as the stock throttle body and after was totally warmed up, we noticed the idle was holding a tad higher than with the stock throttle body.

Taking the 2011 Mustang out for a test drive we noticed the throttle was a little more responsive feeling and this seemed to carry through at any speed. Stomping the Mustang off the line felt no different than before with stock throttle body in place. Hitting the go pedal at 30-40 mph was also no different feeling than with the stock throttle body. We parked the 2011 Mustang and removed the BBK 85mm Throttle body and put the stock throttle body back on, we had our results.

It was now time to try the BBK 85mm throttle body on the 2012 Mustang GT. We removed the stock throttle body and replaced with the BBK unit, all went on easy and smooth, no issues. When all was ready to go we started up the Mustang and let it warm up for a bit. The idle during warm up was same as usual and after warmed up we again noticed the idle was just a tad higher than before running the stock Ford 80mm throttle body. We also noticed the car when revved sounded a bit more powerful, or heavier air sucking kinda sound. It was time to take it out on the road and see how it felt. At a set of lights (no other vehicles around) we stomped on it off the line (we did this a few times) and both of us noticed it had a little more low end torque than before (tires spun more than before, usually just spin a little then hook). We know this as have tested the 2012 Mustang GT plenty of times before in this same spot, even same lane. We floored it from a variety of different speeds and all seem to pull just a little harder than with the stock throttle body. The throttle response also seemed a tad more responsive though the whole rpm range. Our conclusion was we definitely felt a small gain in acceleration, versus not feeling any gains in acceleration with the BBK 85mm throttle body mounted on the stock 2011 Mustang GT.

On a pure stock 2011-2014 Mustang GT there will most likely not really be any benefit as in acceleration gains, just a more responsive throttle feel, which is great if you hate the flat feeling of the stock Ford throttle body. We feel if you are going to replace your stock throttle body so it’s all new again, then why not replace it with the BBK 85mm unit, it’s a small upgrade over stock (no tune is required) and will ready to go if you add power mods in the future. However, if you already have, or are going to have a tune and a cold air intake put on as was on the 2012 Mustang GT (Race Tune and Air Raid Race Cold Air Intake), we feel the upgrade to the BBK 85mm throttle body is definitely a worthy upgrade, felt like about a solid 10-12 hp gain most likely due to having a tune in the car, which seems to work well together.

BBK 85mm Throttle Body 2011 Mustang GT (Stock) Test Results:

  • Idled a little higher than stock and was smooth.
  • Throttle felt a little more responsive than with stock throttle body.
  • No gains in acceleration were noticed over stock, yet sounded slightly more powerful.

BBK 85mmThrottle Body 2012 Mustang GT (Mildly Modified) Test Results:

  • Idled a little higher than with stock throttle body and was smooth.
  • Throttle felt more responsive.
  • Definitely noticed gains in acceleration and sounded slightly more powerful.

 

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2011-2014 Mustang GT Exhaust Guide

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Many of you own a 2011-2014 Mustang GT and want a guide to better understand the stock exhaust system components. Starting from the Mustang GT engine, we first have the factory headers, also called exhaust manifolds which are a Tri-Y or also known as a 4-1 header design. This type of header design is very good as this type of setup offers superior low end performance because of the 3 collectors in a Tri-Y design that optimize scavenging at both high and low RPM and not just one RPM range like you see in a typical 4-1 header design. So right from the factory Ford gave these Mustangs a very respectable factory header.

Next in line in the Mustang GT exhaust system, we have the Mid Pipes which also contain the catalytic converters. All 2011-2014 GT Mustangs come stock with a mid-pipe that has an H-formation or what we call an H-Pipe. An H-Pipe is generally more so to help with a little more low end torque versus no H-pipe at all. Then next in line in the exhaust system we have what is called the Cat-Back which bolts on behind the catalytic converters. The Cat-Back assembly also consists of the mufflers and the tailpipes which is the final destination of the exhaust gases from your engine. If you remove the section of the Cat-Back exhaust assembly that contains the mufflers, this part is called the Axle-Back part of the exhaust system. So the Cat-Back assembly also contains the Axle-Back portion of the exhaust system, so can be replaced by a complete Cat-Back assembly or if just wanting to replace the mufflers, you can just replace the Axle-Back portion of the Cat-Back assembly.

So you now know the 2011-2014 Mustang GT stock exhaust system is broken in to sections as Headers (exhaust manifold), Mid-Pipes, then Cat-Back section which also consists of the Axle-Back portion of the exhaust system. In stock form this factory exhaust really does a good over-all job, but many Mustang GT owners would either like to add more power or just a better sounding exhaust sound than you get from the factory. Adding more power by changing the exhaust manifolds and or you Mustang GT Cat-Back to an aftermarket set-up, will in most cases require a tune to bring it all together to work correctly, but just changing the Axle-Back part of the system which is very popular to do, will not usually require a tune and is more to do with easily changing your Mustang GT exhaust sound.

Most Mustang GT owners will focus on the Axle-Back part of the exhaust system first, as it is the area that most Mustang GT owners want to change to get a more performance oriented exhaust sound and some Axle-Backs can even add a little more power and even drop some weight of the vehicle as well. Mustang performance places such as American Muscle have many Axle-Back systems to choose from and some sound videos as well so you can hear what they sound like. If you like your Mustang GT basically in stock format but would like a more performance sounding exhaust, an Axle-Back is your easiest route and is generally very easy to install.

You now should have a much better idea what your stock 2011-2014 Mustang GT exhaust system consists of.

 

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