GT Performance Mods 2005+ Mustang GT Performance and Technical Information

K&N Air Intake Dyno Test - Tunes now available

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Old Aug 15, 2005 | 09:24 PM
  #1  
BRENSPEED's Avatar
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Last week I spent some time with the K&N air intake on the dyno. The results were about what I expected from this unit. The conditions were hot and humid which are typical of Indiana in August (85 to 90 degrees and 55%+ humidity). The K&N did not achieve the gains found claimed by K&N but K&N tested in about 25 degrees colder air and for some odd reason using 3rd gear pulls on the dyno. This is not standard practice as most tuners pull in 4th gear on a 5 speed mustang. We pulled in 4th gear so we could report the data as 99.9% of tuners in the industry are reporting this type of information.

The air intake system functionally does everything intended. I don’t feel it is as well made as the C&L but it does do the job and cost less so for the price I would have to give it a thumbs up.

The GT in test was your basic 05 Mustang with pulleys, axleback, but did also have our Spec flywheel and clutch.

Once the K&N was added in place of the stock air box...
Horsepower Gain 10.9 RWHP AT 6100 RPMS
TORQUE GAIN 6.02 AT 4300 RPM


I then spent some time developing a custom tune for the K&N that did not require you to use the carbon trap. The gains were impressive considering the humid environment we were working in.


Total Gain with our X-calibrator tune with K&N over the stock air box
Horsepower Gain 21.36 RWHP AT 6100 RPMS
TORQUE GAIN 8.22 AT 4400 RPMS
Additional power is available... see below


The gains above were found using what I call a super safe mail order style tune on premium fuel. I could bump the gains up another 4 HP and 2 Torque for more of a premium fuel weekend warrior type tune.

With our tune and K&N you are going to experience a huge power change in the car. It will be more responsive throughout the entire power band like our C&L programs you hear everybody on here talking about.

In short I would have to say this combo is worth the money. If you have the extra cash I still suggest our C&L combo as its quality is a bit better and in my opinion it looks better also. If you like the look of the K&N you will love this power package.

If you have any questions about the K&N and our X-cal units please give us a call or e-mail.

sales@brenspeed.com or 574.845.7455

The K&N SCT packages are going to start at $549 with an X-calibrator 1 or $599 with an X-calibrator 2. Both packages have free shipping and the X-cal 2 comes with a free USB cable. As always we will test the parts we sell. This will give us the technical knowledge to help you through your install and unlike 99% of the companies in the industry we understand, use, and tune what we are selling.

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Old Aug 15, 2005 | 11:32 PM
  #2  
Enfynet's Avatar
 
Joined: August 19, 2004
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From: Cleveland
My only question is when is DiabloSport going to get their act together and do the same. :bang:
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Old Aug 16, 2005 | 12:30 AM
  #3  
rrobello's Avatar
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how much for just the Xcal2 with the tune? I have the intake
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Old Aug 16, 2005 | 06:55 AM
  #4  
Lowe!'s Avatar
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Joined: December 18, 2004
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Brent,
Thanks for all your hard work on the K&N!
Given the conditions, how do you think this K&N set up would compare power-wise with the C&L, under the same conditions? Looks like a $75 difference.

Here is south central Texas, our humidity is in the 70%+ range many days, and 95 degrees+ heat. Can't wait for winter!!
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Old Aug 16, 2005 | 08:01 AM
  #5  
SurfnSoCal's Avatar
Shelby GT350 Member
 
Joined: October 4, 2004
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From: San Clemente, CA
I concur, where is the Diablosport...
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Old Aug 16, 2005 | 11:18 AM
  #6  
BRENSPEED's Avatar
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The X-cal 2 units are still $369.

You get your choice of our custom K&N tunes or any other tune we have. You also get 3 programs, free shipping, and a free USB cable.

As for the comparison between C&L and K&N I think they are very equivalent as far as performance on a stock mustang so I wouldn’t spend a lot of time trying to decide which makes more power. The decision to spend the extra $75 on the C&L should come down to appearance and quality. I like the look of the C&L better and the quality. That is my opinion. The mass air sensor fits a lot better in the C&L than the K&N. I like the appearance of the inlet pipe on the C&L better. Also there is a vacuum line that mounts to the inlet pipe on your mustang and the C&L allows you to use the stock line. The K&N requires you to use a piece of rubber hose that they supply in the kit. All of these “quality†and “appearance†items are purely my opinion. Some people might like the looks of the K&N better or it may not be worth it to them to upgrade for $75.

In the end the K&N is a complete kit that works great and does add power.

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Old Aug 16, 2005 | 12:52 PM
  #7  
Enfynet's Avatar
 
Joined: August 19, 2004
Posts: 2,047
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From: Cleveland
Sounds like I might have to sell the Predator and get an Xcal2...

Anyone want a Predator?
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Old Aug 16, 2005 | 12:55 PM
  #8  
SurfnSoCal's Avatar
Shelby GT350 Member
 
Joined: October 4, 2004
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From: San Clemente, CA
ya, anyone want TWO predators?
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