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SLP Line Lock Kit (07-09 GT, GT500)

11 Reviews
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  • Item #23036
  • MPN #M25002
  • Market Price $219.99
  • You Save 13% ($28.00)
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  • Line Lock System
  • Perfect for drag racers
  • Saves wear & tear on your rear brakes
  • Works with anti-lock brakes & traction-control
  • Fits 2007 to 2009 GT & GT500 Mustangs
Line Lock System. Brake-Control Packages better know as a line lock system allows the driver to "lock up" the front brakes while letting the rear wheels spin free to heat up the rear tires in the burnout box for better traction down the track. Not only is it a great way to warm up your tires, but you can also use the system to prevent manual transmission cars from rolling out of the staging beams at the starting line. How It Works. The SLP Brake-Control Package works by simply pressing the brake pedal and flipping the brake-control solenoid switch on. Remove your foot from the pedal, and the solenoid maintains line pressure to the front brakes until the switch is released. This saves wear and tear on your car's rear brake components from the old "left foot on the brake and right foot on the gas" method.

Complete Custom Kit. SLP Brake-Control kits are custom-fitted to the S197 Mustangs chassis, with no tweaking or fabrication required. It includes a waterproof electrical solenoid, an activation switch, plug-in wires, CNC-bent steel lines with correct OE fittings, mounting hardware, and detailed installation instructions.

Application. This SLP Brake-Control Package is specifically designed for use on the 2007 to 2009 GT, Bullitt and Shelby GT500 Mustangs. This kit is fully compatible with the factory anti-lock braking and traction-control systems.

Mustang Fitment: 2007 2008 2009 Details

What's in the Box
  • (1) Waterproof electrical solenoid
  • (1) Activation switch
  • (2) CNC-bent steel lines with correct OE fittings
  • Wiring Harness
  • Mounting hardware and installation instructions
Installation Info
  • Bullitt - 08, 09
  • GT - 07, 08, 09
  • GT500 - 07, 08, 09

Most Helpful Reviews View All

Overall Rating 4.7/5 Write a Review
SLP Brake Control

Easy to install

Helpful (5) (1)

Must have for frequent track trips!

If you visit the track a lot, you need this. I learned the hard way. After going through a set if brakes, rotors, clutch, and a cracked flywheel, I realized how much stress I was puttin on my driveline

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Helpful (4) (1)

Customer Photos (4) View All

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Q & A (2 Questions, 6 Answers) Ask a Question

Can I keep my upgraded brake lines with this kit? I have aftermarket brakes at all 4 corners with braided stainless-steel brake lines. Can I still keep my braided brake lines with this kit, or does it replace the front lines? Thanks!

RoushCustom Year: 2010 Model: Other

Question Resolved
Good Question (0) (0)
  • There is absolutely no reason that you cannot keep your upgraded brake lines with this kit. Your factory lines are flexible from a connection point forward to your caliper just as are your braided stainless. I have braided lines as well and have had no issues what so ever.

    Helpful (0) (0)

    o8mustang13gt Year: 2008 Model: GT

Show 2 more answers

Does it work too in automatic transmission stangs?

carmoncha Year: 2009 Model: GT

Question Resolved
Good Question (0) (0)
  • Yes, Have one on my GT

    Helpful (0) (0)

    fatpop Year: 2012 Model: GT

    Top 100 Contributor

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Reviews (11) Write a Review

  • 5 Stars .73 73%
  • 4 Stars .27 27%
  • 3 Stars 0 0%
  • 2 Stars 0 0%
  • 1 Stars 0 0%

out of 5 stars

10 Customers Recommend this Product

Installation Time:Afternoon

Installation Cost:0-$100

  • Fit: 4.375 4.4/5
  • Bang For Your Buck: 4.625 4.6/5
  • Stopping Power: 4.875 4.9/5
Filter By Sort By
  • 5/5

    SLP Brake Control

    June 15, 2010

    Easy to install


    Helpful (5) (1)

  • 5/5

    Must have for frequent track trips!

    September 08, 2009

    If you visit the track a lot, you need this. I learned the hard way. After going through a set if brakes, rotors, clutch, and a cracked flywheel, I realized how much stress I was puttin on my driveline by locking up the rear brakes and doing a burnout. This makes everything a lot easier too. A great mounting place is up top between the two interior light buttons.

    Jon miller

    Helpful (4) (1)

  • 5/5

    Good system

    April 08, 2014

    Does what its designed to do. The only PITA was getting the lines set just right, however once set it works great. There are several switch location options. I personally have it set on the center console in front of the hand brake. Took a bit of modification and cutting to remove one of the clips however the switch is out of the way and is hardly noticeable

    Top 1000 Contributor


    Year: 2007 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Olney, MD

    Helpful (1) (0)

  • 5/5

    Fun, but somewhat of a pain to install, be prepared...

    May 11, 2013

    as I stated, great product, does exactly as described, I got an old set up tires just ready to be shredded for some youtube action, really looking forward to destroying them. As for the install, there are times when I wanted to pull my hair out, winding prebent tubing thru the puzzle of car parts is a pain, doable, but dont get too frustrated, it will go, You just gotta get an extra hand or two in there and hold hoses and wires out of the way, be prepared to remove your airbox, it makes things so much easier to get to, however, the stock air box doesnt quite fit with the prebent tubing, some patience and some muscle made it all fit relatively ok. Again, the stock airbox didnt quite fit back in with the prebent tubing, bend the stuff a bit, try it again, rinse, repeat. Worth it, but not without a tiny bit of extra effort. Also, have all your tools and fluids ready for bleeding of your brakes afterwards.


    Year: 2009 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Idaho Falls, ID, USA

    Helpful (1) (0)

  • 4/5

    SLP Line Lock 08 GT500

    January 20, 2013

    As for the performance of the system and the install I can only tell you what my wife told me. She took it to a shop and had it installed and has tried it out a couple of times. She said it's time to buy some more rear tires so I guess this system works well. I will give a better review once I return back stateside.


    Year: 2008 Model: GT500 Driving Style: Street / Strip 'Stangs I have owned: 1 Fort Hood,Tx

    Helpful (1) (0)

  • 5/5

    Great kit and makes the strip alot more fun

    December 23, 2012

    I got this product because at the strip where I race i always seem to roll just a bit so i bought this kit and installed it in about a half hour. I am an auto mechanic so having hte right tools always helpsThe fit is tight in a couple of places and takes some finess to get in but once its in and you lock the lines the first time and just burn out is amazing. no more double pedal work or anything and you can completely control how much resistance you have when your locking the lines so if you want to stand dead still that can be done or with a little less pressure you can do a very slow roll as you over power it. Great product and easy to install !


    Year: 2008 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 1 Mammoth Lakes, CA, USA

    Helpful (1) (0)

  • 5/5

    SLP Brake control Package (07-09 GT, GT500

    February 27, 2011

    Product works as designed. You need to drop the hammer at or above 4000 rpm and keep the rpms high around 5k to 6k and it will look like a forest is on fire when you roll out of your burnout. I made a wicked burnout video I will be posting to the AM facebook page very soon. If you are on the fence about buying this product get off your duff and buy it already!


    Year: 2009 Model: GT Driving Style: Show

    Helpful (4) (4)

  • 5/5

    Great investment!!!!

    September 25, 2014

    Don't take very long to hook it up and I placed the switch on the over head lights. This is a great investment if you like to burn rubber without having to hold your brakes. Just changed my rotors and brakes when I put the line lock on. Trust me, if you do burn outs while holding down the brake peddle, you will damage your rotors. Easy install. Thanks AM.


    Year: 2007 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 2 Clayton LA

    Helpful (0) (1)

  • 4/5

    SLP Line Lock Kit (07-09 GT, GT500)

    December 09, 2011

    It worked as advertised. I had a few minor issues with the installation. After I completed the installation, it worked great.


    Year: 2007 Driving Style: Street / Strip 'Stangs I have owned: 4 Lancaster, CA

    Helpful (0) (1)

  • 4/5

    Must have

    December 04, 2012

    Product is good quality and works perfectly! It's a must have for any stang!


    Year: 2008 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Katy, TX, USA

    Helpful (0) (2)

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