Newest Products

Need to install a 105mm rear main seal into a 991 or a 997.2 Porsche 911? Make sure you set the seal to the proper 7mm depth from the surface of the crank flange! If you install the seal without a tool that controls the depth, you'll likely install it too deep, and you'll have a high risk of a leaking seal.  It's simply too time consuming to do the job twice, so do it right the first time!

This is an affordable alternative to the costly (~$400) factory tool from Porsche. Simply bolt this tool to the crank using the flywheel bolts until the tool bottoms out on the crank. Remove the bolts, verify that your depth is even, and you're done!

This CAD designed tool is 3D printed plastic, and is safe to use on your seal without risk of damaging it or the bore that the seal sits in.

Carbon fiber bumper ducts to finish the front of the car perfectly and make the car look a lot more aggressive.

• 3K Carbon Fiber 1×1 twill (Made in Japan)
• 45 degree weaving
• Anti-UV gloss clear coating for a long lasting shine and protection

Shipping is not included on this item!

*Please Note*

This product has a lead time of up to 60 days

This lightweight exhaust muffler with oval tip is made with stainless steel 304. Carbon Miata designed it to be the simplest solution to cut weight at the back of your car.

• Lightweight construction (6 pounds – 2.7 kg)
• Perfect for Autocross and track days
• 304 Stainless steel construction
• Perfect fitment with OEM diffuser or with Carbon Miata's carbon fiber diffuser
• TIG welded
• Growling, aggressive sound (check out Carbon Miata's video)
  
• 60 mm diameter piping

*Please Note*

This product has a lead time of up to 60 days

This trunk with ducktail replaces the OEM Miata aluminum trunk. Made with high quality carbon fiber, it only weighs 3.5 KG (7 Pounds). It replicates the ND trunk exactly including the inner structure, and its ducktail finishes the rear of the soft top perfectly, making it more aggressive.

• 3K Carbon Fiber 1×1 twill (Made in Japan)
• 45 degree weaving
• Anti-UV gloss clear coating for a long lasting shine and protection

*Please Note*

This product has a lead time of up to 60 days

This carbon fiber rear diffuser fits on top of the rear plastic valence on all ND Miatas with OEM exhaust. Made with high quality carbon fiber, it only weighs 2 kg.

• 3K Carbon Fiber 1×1 twill (Made in Japan)
• 45 degree weaving
• Anti-UV gloss clear coating for a long lasting shine and protection

Freight charges are additional and will be billed separately. Typical charges within the US are $240.

*Please Note*

This product has a lead time of up to 60 days

These covers fit on the side mirrors of your ND.

• 3K Carbon Fiber 1×1 twill (Made in Japan)
• 45 degree weaving
• Anti-UV gloss clear coating for a long lasting shine and protection

High grade 3M double side adhesive will be supplied with every piece for easy and reliable installation.

*Please Note*

This product has a lead time of up to 60 days

These side skirts are perfect to finish the sills and make the car look lower.

• 3K Carbon Fiber 1×1 twill (Made in Japan)
  
• 45 degree weaving
• Anti-UV gloss clear coating for a long lasting shine and protection

Easy to install: perfect fitment on the OEM sills. You can drill through the skirts or use some polyurethane adhesive sealant to bond the skirts to the sills. 3M double side adhesive supplied for the top part of the sills.

*Please Note*

This product has a lead time of up to 60 days

These lightweight carbon fiber canards will direct the airflow above the wheels, giving you better aero.

Perfect fitment on OEM bumper. 3M double side adhesive is included, but for maximum strength, rivets/screws are recommended.

• 3K Carbon Fiber 1×1 twill (Made in Japan)
• 45 degree weaving
• Anti-UV gloss clear coating for a long lasting shine and protection

*Please Note*

This product has a lead time of up to 60 days

These fender flares fit perfectly on your existing fenders. Made with high quality carbon fiber, they are perfect for those wanting to run wider wheels (+35MM all around).

They lend themselves to a wider, more aggressive look. Carbon Miata attached a lot of importance to the fitment of this piece to ensure ease of installation. No DIY, trimming required! Only sanding, painting and fitting!

• 3K Carbon Fiber 1×1 twill (Made in Japan)
• 45 degree weaving
• Anti-UV gloss clear coating for a long lasting shine and protection
• Weight: 0.3 kg/side for carbon fiber

Sold in sets of four.

*Please Note*

This product has a lead time of up to 60 days

This vented carbon fiber hood replaces the OEM aluminum one and cuts a third of the weight. Rain guards are included with each piece to close off the vents. However, Carbon Miata drove in the rain without them and had no issue.

3K weaving. CF + UV resistant varnish, gloss clear coat paint (made using vacuum bag process)

Easy to install: perfect fitment using factory mounts. You can reuse the 4 OEM screws and the front latch.

Contact us at with your postal code for an accurate shipping quote. Average shipping for the item is $750-$850. You will be required to choose a freight shipping option from the drop down menu. If the cost of freight exceeds the option you chose, your order will not ship until the difference is covered.

*Please Note*

This product has a lead time of up to 60 days

This lightweight carbon fiber gas lid cover sticks on your existing cover for a racing style.

• 3K Carbon Fiber 1×1 twill (Made in Japan)
• 45 degree weaving
• Anti-UV gloss clear coating for a long lasting shine and protection
• Lightweight, only 20 grams

This trunk with ducktail replaces the OEM Miata aluminum trunk. Made with high quality carbon fiber, it only weighs 3.5 KG (7 Pounds). It replicates the ND trunk exactly including the inner structure, and its ducktail finishes the rear of the RF perfectly, making it more aggressive.

• 3K Carbon Fiber 1×1 twill (Made in Japan)
• 45 degree weaving
• Anti-UV gloss clear coating for a long lasting shine and protection

Freight charges are additional and will be billed separately.

*Please Note*

This product has a lead time of up to 60 days

Looking for that secret edge? Flyin' Miata's billet aluminum sway bar brackets are lighter and stiffer than the ones that come with our bars. Plus they're less likely to end up with the bolts pressed up against the edge of the bracket - if that's happened to you, you know what we're talking about. No more messing around with inexpensive bent steel brackets, these drop right in to place with a nice flat surface to mate up to the mount. Anodized matte black.

The opening is 39 mm (1.535") wide and 48 mm (1.890") tall at the tallest point. Fits the oversize bushings used on front FM sway bars. Includes new hardware.

Looking for that secret edge? Flyin' Miata's billet aluminum sway bar brackets are lighter and stiffer than the ones that come with their sway bars. Plus they're less likely to end up with the bolts pressed up against the edge of the bracket - if that's happened to you, you know what we're talking about. No more messing around with inexpensive bent steel brackets, these drop right in to place with a nice flat surface to mate up to the mount. Anodized matte black.

The opening is 32 mm (1.26") wide and 32 mm (1.26") tall at the tallest point. Fits the bushings used on rear FM sway bars. Includes new hardware.

• Compatible with iron rotors (not carbon ceramic)
• Dual-duty, low friction pad for improved performance without premature wear
• Easy bed-in characteristics
  

• Compatible with iron rotors (not carbon ceramic)
• Dual-duty, low friction pad for improved performance without premature wear
• Easy bed-in characteristics
  

The  ETS  Evolution X High Flow Cat Test Pipe is a direct replacement of the factory catalytic pipe.  This has been  dyno  tested for a 10-15whp  increase over the factory catalytic pipe.  Works with factory downpipe and factory exhaust system as well as any other aftermarket exhaust system that mounts in the factory location.

Features:

• Direct Replacement J-Pipe O2 Bung (Prevents Check Engine Lights)
• Wideband Bung w/ Plug included
• Stainless Steel
• Factory bend to clear the driveshaft unlike the competitors who use a straight pipe that will rub against the driveshaft.
  

CANNOT SHIP TO CALIFORNIA

Looking to build an fast Evo X? Here's where to start:

Forged 2.0L Engine:

Specs:

• Traum 86mm forged 2618 aluminum pistons with standard duty floating wrist pins, 9.0:1 compression ratio. Pistons from Arias, CP, or JE may be substituted depending on availability.
• Manley or K1 H-Beam Rods (depending on availability)
• All new OEM or ACL bearings and components.
• OEM Main Bolts
• Built from a new block and crankshaft.
• Optional core buyback program - We will pay up to $2000 for your good original core depending on condition.

Prices do not include freight and/or shipping charges when applicable.

Engines are built to order and are not cancellable or refundable. Please allow 8-16 weeks for completion.

Looking to build an fast Evo X? Here's where to start:

Forged 2.0L Engine:

Specs:

• Traum 86mm forged 2618 aluminum pistons with heavy duty floating wrist pins, 9.0:1 compression ratio. Pistons from Arias, CP, or JE may be substituted depending on availability.
• Darton sleeves bored with the use of a torque plate to ensure roundness of cylinders with the installation of head studs.
• Manley Turbo-Tuff, Pauter, or Carrillo rods used depending on availability.
• All new OEM or ACL bearings and components.
• ARP Main Studs
• Brand new OEM block and crankshaft
• Optional core buyback program - We will pay up to $2000 for your good original core depending on condition.

Prices do not include freight and/or shipping charges when applicable.

Engines are built to order and are not cancellable or refundable. Please allow 8-12 weeks for completion.

Specify your bore and compression ratio in the order notes.

These pistons are custom designed to clear the oil jets.

Please allow 8 weeks for delivery.

In general, we recommend .020" over and an 8.5:1 CR.

Specify your bore and compression ratio in the order notes.

Please allow 8 weeks for delivery.

Have your car professionally tuned by Dino @ SpeedCircuit via email.

Gain up to 76whp and 80wtq from nothing but a tune!

Largest HP/Tq Delta = 86whp, 82wtq.

HOW IT WORKS

1. Purchase this item. In the comments field, list the year and trim of your 911, along with every modification to the car which could effect performance. This includes, but is not limited to engine modifications, wheels, tires, intake, exhaust, weight reduction, fuel system, etc.
2. Depending on the extent of your modifications, you may be required to pay additional fees for your tune. Items such as upgraded fuel systems, turbos, etc will require much more time and calibration, hence, added cost.
3. You will be emailed a starter tune. You will be asked to download this tune to your ECU and log certain parameters in certain conditions.
4. Email us the logs, and you will receive an updated tune. The process of logging and updating your tune will continue until the tune is complete. An entry level tune will have a maximum of 10 versions for the above price.

Note: The tunes are the intellectual property of SpeedCircuit, and may not be shared with anyone without written consent. Furthermore, it is the responsibility of the owner to ensure that the car is mechanically sound. SpeedCircuit is not liable for any damages that may occur to your car. E-Tunes are done at your risk.

REQUIREMENTS

• Laptop Computer
• Cobb Accessport
• A car free of any mechanical issues.
  
• If it is suspected that your car has mechanical issues, you will be asked to address them or have a professional do so.  If you do not look into suspected mechanical issues, we will not be able to resume tuning your car until you do.

WHAT TO LOG

• Accelerator Pedal Position (Actual)
  
• Engine Load
• Engine Torque (Basic)
• Engine Torque (Indicated)
• Engine Torque (Limitation)
• Ignition Timing Correction Cyl1-6
• Ignition Timing
• Indicated Torque Request fast
• Intake Air Temp
• Lambda Bank 1
• Lambda Bank 2
• MAP Measured
• Waste Gate Actuation
• Engine Speed (RPM)

You may be asked to log more items as the tune progresses.

Please be sure to only do one full throttle pull per log. The pull should be from 3200-7000rpm unless specified otherwise.

Warning: E-Tuning requires that the driver of the car be aware of potential issues that may arise during tuning. This may include the car running lean, overboosting, detonating, or any other mechanical issues. If something doesn't feel right, take your foot off the throttle immediately and end the pull. SpeedCircuit, LLC is not responsible for any damages your car may incur! If you are not comfortable with this, please visit us for an in-person tune.

Expect one updated tune file per week until completion. This will vary based on both our schedule and how quickly you can provide logs for the most recent update to your tune.

If you're not familiar with how to set up your car or computer to log or flash tunes on your car, or you need help with diagnostics, please check the Phone Support option.

Please watch this video to understand our e-tuning process: