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New Product Release!! JBR 2016+ Mazda Miata ND/RF Oil Cooler Kits!!


Are you tuned? Are you a track Junkie? Are you both? Keeping the oil in your 2.0L MX-5 engine as cool as possible is going reduce knock and prolong engine life. Preventing the oil from exceeding normal operating temperatures will extend the life of your oil by reducing temperatures that prematurely break it down and increase engine wear. In addition to keeping the oil temps under control, adding the JBR oil cooler will reduce the rise in coolant temperatures often seen when on track or during extreme temperature conditions. The lack of an oil cooler from the factory makes the JBR oil cooler an essential addition for those that push their MX-5 to the limit.

The JBR Oil Cooler Kit employs a 19 row core constructed out of aluminum corrugated-fins & internal tubular plates greatly increasing both thermal efficiency and mechanical strength, so you get the smallest, lightest and more importantly, the most efficient oil cooler package. 

Application specific -10AN fittings and large ID stainless braided lines are the key to minimizing the pressure drop and making for an easy installation. 

The polished billet aluminum sandwich plate incorporates an 1/8″ NPT port for additional gauges and sensors. 

An application specific mounting bracket and stainless steel hardware keep the core solidly mounted out front of the radiator maximizing its exposure to incoming airflow resulting in an oil temp reduction of over 54⁰F. 

Applications: – 2016 and Up ND/RF 


– Designed and Manufactured in the USA
– Direct bolt on application
– Corrugated-fin & tubular plate aluminum core
– Aluminum –AN10 fittings and Stainless lines
– +54⁰ drop in oil temps*


– 1 Oil cooler core
– 2 Stainless braided hoses
– 1 Sandwich plate & 2 1/8” NPT Plugs 
– 1 Application specific core mounting bracket
– Stainless steel mounting hardware
– 2 Aluminized fiber glass heat shield sleeves
– Installation instructions are available in our support section
– Shipping is free in the US & our Hassle Free Lifetime Warranty is included

*Ambient temperatures, track and road conditions, traffic and driving style can affect results.

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New Product Release!! JB Armor 2016+ Mazda Miata ND/RF Mud Flap Kits!!



JB ARMOR Mud Flaps are the highest quality flaps available at a price that’s now easier than ever to afford. Made from thick, 1/8” 80 durometer urethane, the same exact material used by the more expensive companies..

Tough protection from rocks, road tar and mud that will withstand any form of abuse, on or off the road. The JBR brand logo has been laser etched in to the surface of each front flap and an the option of having the Miata script, JBR brand logo or no etching is available for the rear. The etching is guaranteed never to fade or chip like those that are painted on or fall of off like decals.


– Designed and Manufactured in the USA
– Thick 80 durometer urethane construction
– Laser etched logo*

*All front come with the JBR logo. Options apply to rear flaps only.


2016+ ND/RF


– 2 Front Mud Flaps
– 2 Rear Mud Flaps
– Stainless Mounting Hardware
– Installation instructions are available in our support section
– Shipping is free in the US & our Hassle Free Lifetime Warranty is included



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New Product Release!! Rear Wiper Delete Kits!!



The JBR Rear Wiper delete kit will clean up the rear of your hatchback for that shaved show car look.

The billet aluminum, black anodized outer cover utilizes a large diameter O-ring to keep the water out. A thick EPDM washer is utilized between the glass and the inside cap to eliminate any stress concentration know to cause windows to shatter.

SKY-WPR-DEL_01In addition to the clean look, there’s a reduction of 2lbs. of unnecessary weight.

There’s no permanent modifications made during the install and the wiper can be quickly and easily re-installed during the rainy and winter months.

Applications available:

– 2012 & Up Focus NA and Focus ST

– 2016 & Up Focus RS

– 2010 – 2013 Mazda 3 and Mazdaspeed 3

– 2014 & Up Mazda 3 hatchback


Designed and Manufactured in the USA

– Black anodized finish

– Simple bolt on kit

Kit Includes:

– 1 Outer cap with O-ring

– 1 Inner cap

– 1 inner rubber seal

– Stainless mounting hardware

– Installation instructions are available in our support section

– Shipping is free in the US & our Hassle Free Lifetime Warranty is included






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New Product Release!! JBR Hood Scoop Insert for GEN 2 Mazdaspeed 3


Add aggressive styling and improve the performance of your Mazdaspeed 3 with the JBR Hood Scoop Vented Insert.

When used in combination with a front mounted intercooler, the JBR Hood Scoop Insert helps lower boost air temperatures faster by reducing negative under-hood pressure.

It doesn’t increase boost air temperatures when used in combination with a factory top mounted intercooler with factory ducting in place.

It keeps rocks, birds, bugs and other debris out of you engine bay and prevents damage to top mounted intercoolers.

It’s a simple bolt on application carefully designed to fit perfectly.

Available Finishes:

  • Mirror Red
  • Mirror Black
  • Mirror Blue
  • Mirror Clear
  • Unfinished






  • 2010-2013 Mazdaspeed 3


  • Designed and Manufactured in the USA
  • Several finish options for endless color combinations
  • Quick and easy installation

Kit Includes:

  • 1 hood scoop vented insert Cover
  • Installation instructions are available online in our support section
  • Shipping is free in the US & our Hassle Free Lifetime Warranty is included






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New Product Release!! JBR Radiator Cover 2010 & Up Mazdaspeed 3


Add some color and clean up that ugly space between the engine and front bumper of you Mazdaspeed 3 with a JBR Radiator Cover.

The JBR Radiator Cover for the 2010 to 2013 Mazdaspeed 3 was designed using the latest in coordinate plotting technology guaranteeing a perfect fit.

It’s been cut from thick and durable polyurethane sheet that will last a lifetime and never chip or fade.

Adding the JBR Radiator Cover completely covers the core support area leaving you with a classy finished look to your engine bay. Available in Red, Blue or black, it’s sure to compliment any color scheme.



Application: 2010-2013 Mazdaspeed 3


  • Designed and Manufactured in the USA
  • Thick durable polyurethane construction
  • Quick and easy installation

Radiator Cover Kit Includes:

  • 1 Radiator Cover
  • Installation instructions are available online in our support section
  • Shipping is free in the US & our Hassle Free Lifetime Warranty is included

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New Product Release!! JBR 2016+ MX-5 ND/RF Rear Differential Mount

The JBR Rear Differential Mount for the 2016 & up Mazda MX-5 is a CAD designed direct fit OEM replacement. It’s machined out of lightweight yet incredibly strong 6061 billet aluminum. It’s not a weak cast aluminum part like the OEM mount which is prone to bending. 

It comes fitted with 80 durometer bushings to eliminate movement of the rear end in the subframe reducing wheel hop under hard straight line acceleration and when exiting a corner. Installing a JBR mount gets rid of the unwanted slop and flexing which allows for the power to go directly into rotating the tires, instead of flexing the soft rubber of the OEM mount. Giving you better feedback, sharper response and more predictability on throttle input.

  • Designed and manufactured in the USA
  • Weighs only 4lbs 8ozs. 1lb 2ozs more than the OEM
  • Anodized for corrosion resistance 


  • 2016+ Mazda Miata MX-5 ND/RF

The kit includes:

  • 1 Rear Differential Mount
  • Shipping is free in the US & our Hassle Free Lifetime Warranty is included
  • Installation instructions are available in our support section
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Suspension Part Three: The Pertinents

Going back to our last post (if you haven’t read Part Two yet, you should), we broke down the components of what makes up a coilover system, we’ve been over deciding that coilovers are really the best option and have discussed some of the key features of a set of coilovers. Now we need to dive deeper into some of the features that are icing on the cake. These are the bells and whistles found on premium suspension systems that make them worth that bit extra.

As you will recall, compression and rebound dampening are two major points of adjustment. Some coilovers offer only compression and other more  premium coilovers offer both. Why is this important? A vehicle in a track environment, or even on some twisty backroads, will receive four types of bias. Forward, rearward, left, and right bias are the four categories. When compression and rebound adjustments can be made, and those adjustments can be made on all for corners, then one can properly address all types of bias and conditions. This allows the user to tweak their suspension to perfection for any given condition and setup. Whether it be on the your daily driven street car, your dedicated track car or the more common daily driven track car, having control over your suspension is where it’s at.

Speaking of conditions, a primary concern of many is the ability to get great track performance out of a set of coilovers that is able to be driven with comfort on the street. Range of dampening is a key factor in this parameter. A set of coilovers labeled as “street” will typically have rather soft shocks. A set of coilovers labeled as “track” will conversely be rather stiff. Having a wide range of adjustability, being able to adjust both compression and rebound are what make a good set of coilovers great for both the street and the track!

Another very important feature found on a quality set of coilovers is camber adjustment. Often times the OEM suspension setup doesn’t allow for much if any camber adjustment. Camber or Camber angle is the angle between the verticle axis of the wheels and the vertical axis of the vehicle and can commonly be seen from the front or rear of the vehicle. If the top of the wheel is further “out” in relation to the bottom of the wheel, this is refereed to as positive camber. If the top of the wheel is “in” relative to the bottom, this is called negative camber. You will rarely see positive camber on a street car or road course car. You may see positive camber on an oval track car and it would only be found on the inside wheels. Negative camber is the more common setup due to the fact that it increases grip when cornering by increasing the tires contact patch. Having the ability to add additional negative camber over that obtainable with the OEM setup is a important feature of every driver that races their car. It’s even a requirement for those that just want to achieve a low ride height combined with the aggressive look of wider tires and need to get them tucked inside of the wheel well.

To adjust camber, coilovers employ what’s called camber plates to make these adjustments. You’ll primarily see them in the front simply because the front of most vehicles with the more common McPherson strut suspension do not have camber adjustment capability. This is not often the case with double wishbone suspension and coilovers for those vehicles typically do not come with camber plates.

Hmmm… I wonder if we can’t develop a set of coilovers that will be comfortable on the street, have both compression and rebound adjustability, camber adjustability where needed and perform the job duties on the track? Yes, Yes we can!

Now that the research is done and we know what we want out out a set of coilovers it’s time to build a few sets. With prototypes completed, the fun part is about to begin. The best part of being an aftermarket manufacturer is that testing needs to be done. We’re all car guys, so naturally taking the car to the track is not exactly a chore. It’s no secret that JBR is located in the greater St. Louis area. Aside from some AutoX action, there is not much venue for legal abuse to the extent that we’d like.

JBR’s testing process involved multiple levels. Typical spirited driving is in order for the entire JBR fleet and that happens frequently. What is the fun of owning a performance vehicle without driving it like it was designed? A step above is taken in the routine AutoX outing. Often times, when some early testing is needed on a new part, AutoX is a great tool. It is legal to get some abuse on the parts on this closed course, and gets some real world data based on how the parts will be used.

Although this is the routine light duty testing, the real stamp of approval needs to be received at the peak of conditions the parts will be subjected to. This is why frequent trips to various Midwestern tracks, such as Gingerman Raceway, Road America, Mid-Ohio and Pittsburgh International must be made to get proper testing done. High speeds and high cornering forces are coupled with extensive duty cycling at these venues.

Now what’s the beauty of owning a performance vehicle? We race the same cars that we get groceries with. Clearly being able to drive the car to the track, get the abuse in, and drive it back home would get the stamp of approval. This is where the beauty of the JBR prototype coilovers came into play. Not only did they perform extremely well on track, but off track as well. Due to the large range of compression and rebound adjustment incorporated into the dampers, the vehicle is able to achieve a cushy ride feel on the streets at the turn of a knob.

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Suspension Part Two: The Breakdown

Going back to our last post (if you haven’t read Part One yet, you should), we discussed some suspension basics. We know that two major components in a suspension that can be upgraded to optimize performance are springs and dampers. Springs can be thought of as a coarse control, with the dampers  being a fine control. When looking for the most performance and flexibility for different conditions, a full replacement is best. This is commonly known as a coilover system.

When looking at coilover options, an abundance of offerings will be found. Where does one begin to make choices? Spring-rate, dampening, compression, rebound, and independent adjustability of these are all items to consider when choosing a coilover system.

Spring-rate is a large factor in how a coilover will perform. Simply put, the spring-rate is defined as the amount the spring deflects over a certain load capacity. This rating can be made in either kg/mm or lbs/in. You will see kg/mm often shown as “K” and lbs/in often shown as “#” or “lb”. To understand and compare different systems to one another, use this chart:

700 lb/in = 12.5 kg/mm
650 lb/in = 11.6 kg/mm
600 lb/in = 10.7 kg/mm
550 lb/in = 9.8 kg/mm
500 lb/in = 8.9 kg/mm
450 lb/in = 8 kg/mm
400 lb/in = 7.1 kg/mm
350 lb/in = 6.2 kg/mm
300 lb/in = 5.3 kg/mm
250 lb/in = 4.5 kg/mm

So what does this mean? The stiffer the spring, the more load it will take to compress it. Essentially, body roll in cornering will become less when spring-rate is increased. Spring-rate is generally fixed rate on a set of coilovers. This coarse control by itself would result in a very “springy” ride. Rather than a tire staying planted on the tarmac, with a load applied, it would waiver between loaded and unloaded. An unloaded corner makes for loss of grip. This is where dampening comes in.

Compression dampening is the rate of reaction to a change in compression. This is the car pushing down onto the surface. The rate at which the piston compresses directly relates to the amount of compression dampening. This essentially aides the spring in absorbing fine changes in force exerted. This can be bumps in the road, slight turns, or say the car ends up on the rumble strips.

Rebound dampening does the opposite of compression, go figure. Rebound force comes into play when force is lessened on the road, say at the bottom of a dip in a pothole, in the bottom of a bump in the road, or on the exit of a turn.  More rebound will create more response on weight transfer out of a corner.

One can see how having a fixed spring-rate means that compression and rebound adjustability shifts the burden of your choice onto these variables. Most coilovers will be advertised based on how many clicks are on the dial. This refers to how many different settings there are for dampening. Although more options are better, this is not always the whole story. The range that these choices cover is really the thing to be looking at. Most users will be wanting to track their vehicle, but also have the flexibility to have a bearable ride on the street. A set of coilovers with tons of adjustments on one end of the spectrum does the user no good on the other end. This is why range is key.

Not only is range of concern, but compression and rebound do not always go hand it hand. To really dial a vehicle in for a specific setup and circumstance, these variables should be able to be controlled separate of one another. Though this feature is not something that is seen on the bulk of the coilovers on the market, it is available on quite a few and should be sought after if budget allows.

Ultimately, one must consider the use of the vehicle to make a decision. Often times, paying a little bit more money for a gain in versatility is a good choice. The better range of options offered, the more likely the coilovers will be able to accommodate for the various situations to be encountered.

Next in the series Suspension Part Three: The Pertinents

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Free JBR Phone, Tablet, AccessPort & Desktop Backgrounds

Here’s a perfect pairing to go with the parts you love. Show off your support for JBR with these free Phone, Tablet, Ford MFT and Desktop Backgrounds. From your computer, click on the image, then right click and save. From your phone or tablet, tap the image then hold down on the image and download.

Enjoy and Thanks for your support!!

Phone & Tablet Background

Desktop Background

Ford MFT

COBB AccessPort Background

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New Product Release!! SKYACTIV Short Shift Arm Adapter

The JBR Adjustable Skyactiv Short Shift Arm Kit is perfect for those wanting to reduce the long stock shifter throw. Providing options to reduce throw by 20% or 40%, this kit is sure to accommodate every driver and driving style, on the street or on the track.

JBR designs and prototypes in house using the latest CAD and 3D printing technologies, then tests to ensure the product you receive is of the highest quality, form, fit and function that you demand.

With longevity in mind, 6061 aluminum and 304 stainless were used to make up the the key components of the kit. This is to ensure it will withstand the abuse on the track and the harsh elements all year round providing a lifetime of trouble-free enjoyment.

Final production is then followed with strict manufacturing and finishing processes. All products receive the TRU-Performance stamp of approval before making their way to the consumer.

With a very straightforward design, installation of this kit is a breeze. Following our online installation instructions found in the support section of our website, even those with the most basic mechanical knowledge will be enjoying short, crisp and accurate shifts in no time.

– Designed and manufactured in the USA
– Simple to install in 60 minutes or less.
– Anodized for corrosion resistance

– 2014+ Mazda 3, 6 and 2013+ CX-5

The kit includes:
– 1 Skyactiv adjustable Short Shift Plate
– 3 6mm x 14mm socket cap bolts
– 3 8mm x 45mm Hex Bolts
– 3 8mm lock washers
– 3 3/4″ spacers
– Shipping is free in the US & our Hassle Free Lifetime Warranty is included.
– Installation instructions are available in our support section.

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