speedcircuit

Looking to flow more air into your 4B11T? Check out our ported intake manifold! Designed to flow more air and make more power, this beautifully ported manifold will fit the bill.

This price includes a reconditioned intake manifold, however, if you send us a good core, we will credit you back up to $200 depending on condition.

This is our heavy duty 2.5" stainless steel downpipe from our SpeedCircuit Turbo kit for the Mazda Protege.

NOTE: THIS DOWNPIPE WILL NOT FIT A STOCK MAZDASPEED PROTEGE TURBO KIT.  It will not fit a Mazdaspeed Protege Turbo / T25 flanged turbos.  This is made to bolt up to a Ford style 5 bolt discharge.  If you are not sure what you have, this probably will not fit!

• TIG-welded construction
• Heavy duty and built to last
• Heavy duty and built to last
• Stainless flanges unlike other downpipes that use mild steel flanges that will rust and break
• Dump tube for an external wastegate that routes back into the downpipe. Includes a flexible section in the tube.
• Includes flexible section towards rear of the pipe
• Includes two O2 bungs - one for your primary O2 sensor and one for an optional wideband sensor.
• Designed for optimal flow supporting 400hp

Shipped without a flange on the inlet of the wastegate dump tube, so it can be used with various different setups.

Have your car professionally tuned by Dino @ SpeedCircuit remotely.

How it works

1. Purchase this item. In the comments field, list the year and trim of your Evo X, 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, larger MAF housings, and so on will require much more time and calibration, hence, added cost.
3. You will be emailed a base map for your starter tune. You will be asked to download this tune to your ECU and log certain parameters in certain conditions.
4. If your car requires scaling or calibration (due to a larger fuel system, maf housing, etc) you have the option of emailing logs before our tuning session begins in order to maximize your tuning time.
5. Schedule a day and time to perform the remote tune. It is your responsibility to ensure that your car is mechanically sound before this tuning appointment. If the car has a mechanical issue which forces us to terminate the tuning session early, you will not be refunded. We may be able to reschedule to use your remaining time, however this is a case by case basis.

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
• Tactrix OpenPort 2.0 Cable w/ EvoScan OR a Cobb Accessport
• If you wish to use the ECUFlash method of tuning but do not have a Tactrix 2.0 cable, you can purchase one here.
• A knowledge and understanding of how a car works mechanically, in order to be able to track down potential 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. It is not the responsibility of the tuner to diagnose any mechanical issues.

Recommended

• An Innovate or AEM Wideband O2 gauge with logging cable (required for all non-stock turbo tunes). If logging with a serial cable, we recommend a plugable USB to serial adapter which is available on amazon. If you are going to log via an analog connection, which is the only current way to log via Cobb AccessPort, see here for wiring instructions.
• A boost gauge
• Det cans to hear potential knock with.

What to log

• Wideband (only if you have a wideband O2 gauge installed)
  
• Throttle Position (TPS)
  
• RPM
  
• Load
  
• Boost
  
• Baro (if required by boost)
  
• Knocksum
  
• Timing Advance (ignition)
  
• Active WGDC Correction
  
• Odd Clutch Slip Speed (if tuning SST)

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: Remote 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.

Note: Once an initial base map has been sent to you, there are no refunds.

This video explains our e-tuning process:

CAD Designed and 3D Printed resin gauge pod for your Evo X.

This 52mm pod can be added to the left side of your OEM gauge surround.  It requires you to drill three small mounting holes to affix the pod to the stock plastics, as well as one larger hole to run the wiring through.

With these pods there is no more waiting for months to get a custom pod made only to have it crack. 

CAD Designed and 3D Printed resin gauge pod for your Evo X.

This 52mm pod can be added to the left side of your OEM gauge surround.  It requires you to drill three small mounting holes to affix the pod to the stock plastics, as well as one larger hole to run the wiring through.

With these pods there is no more waiting for months to get a custom pod made only to have it crack.

Modern cut T-Shirt with our updated logo on the front and the back shoulder.

Silver colored tee with three-color print.

Tultex brand shirts, pres-shrunk, 100% cotton.

These shirts run a little on the large side, and are a generous length.

Tired of your lower coolant hose and thermostat outlet always getting in the way of your hopes for a nice big downpipe or intercooler piping? Finally, we have your solution.

This kit contains a purpose built silicon hose and straight water outlet neck to route things safely out of the way.

Only available in black.

Titanium Steel spark plug cover for the Evo X, Ralliart, and Lancer.

Designed for optimum fitment with the oem aluminum valve cover, this spark cover not only looks great, but isolates the coil packs from the heat of the exhaust manifold and turbo. Bolts on in seconds. Includes stainless steel hardware.

Ready to upgrade your restrictive, cluttered OEM intake to a single piece, 3" mandrel bent free-flowing, great sounding CAI? Now's your chance!

This high quality intake system is available in powder coated aluminum. The cone filter sits in the driver's side fender well to pull cold, clean air.

This kit features:

• Black Coupler
• High quality stainless steel T-Bolt clamps to ensure a secure fit and no damage to your coupler
• A quality cone filter, ensuring both maximum airflow and dirt filtration
• These are currently only available in a wrinkle black finish on aluminum piping.

Benefits of this intake include:

• Improved throttle response
• 15hp power gain
• Opens up the engine bay
• Smoother power throughout the RPM range
• Awesome sound
• A show-quality piece to set your engine bay apart from the crowd.
• A part that will last the lifetime of the car.
• Silicone hose couplers available in Black, Blue, and Red!
• Since the stock MAF housing is retained, it will have no ill effects on your idle or driveability.

Installed Photos:

Click here for installation instructions!

Upgraded intake piping for the 991.2 3.0T Carrera / T / S / GTS

Our Intakes are made from 3" Stainless Steel as opposed to the plastic piping used in the factory setup. The kits include:

• 2 x Mandrel Bent Stainless Steel 3" Intake Pipes w/ brushed finish - MADE IN USA!
• All necessary clamps (6 x Large Clamps, 2 x Small Clamps)
• 2 x Hump couplers
• 2 x Transition couplers
  

Our aim was to produce the best commercially available turbo kit for the Evo X, and here it is. Designed to maximize response, power, reliability, and ease of installation.

Features include:

• Pulsar or Garrett Turbocharger in the A/R of your choice. Turbo will arrive modified with an aluminum elbow and vanjen flange welded to the compressor outlet.
• Single scroll V-Band turbo inlet and V-Band turbo outlet.
• Top mounted turbo for ease of access.
• 1.5" Stainless Steel tubular manifold
• The first and only kit with 50mm external wastegate for optimum boost control.
• Stainless steel braided wastegate line to prevent melting, overboost, and subsequent engine failure.
• Stainless steel braided turbo coolant return line to prevent melting and loss of engine coolant.
• Aluminum hard line for turbo coolant feed line to prevent melting and loss of engine coolant.
• Oil return line half constructed of stainless hard line and half stainless steel braided line for durability, flexibility, and ease of installation.
• The first and only kit with a true 4" intake and MAF flange. Includes a velocity stack and an intake heat shield. Available with and without BPV recirculation port.
• The first and only kit with a 3.5" downpipe. Available in a either a 2-Bolt exhaust flange or a V-Band flange.
• The first and only kit that uses vanjen style quick-release clamps. These clamps add flexibility to the system as well as reliability due to the fact that silicon couplers can fail due to heat exposure, leaving you stranded. They also allow for a quick and easy removal of the UICP and the intake. Simply press the release buttons and open the clamp.
• Upper Intercooler pipe with vanjen clamp.
• Wrinkle black powder coating on intake and UICP.
• Designed to function with our Firewall Heat Shield XXL, which is strongly recommended.
• Titanium Spark Cover recommended.
• Installation guide included
• Initial tuning shows 500whp on 93 Octane @ 27psi on an Evo X MR, all while hitting peak boost at around 4500rpm! Tests done with a G30-770 Turbo with .83 A/R. Expect about 10% extra power on a GSR, and even more power on E85. 
• One year warranty on all SpeedCircuit fabricated parts*.
  

Overview of the prototype turbo kit. Production kits will vary slightly:

*Warranty details:

• Warranty period begins on ship date.
• Warranty only covers defects or failures due to design or fabrication.
• Warranty does not cover abuse, accidental damage, or mis-installation.
• Warranty only covers SpeedCircuit brand parts and does not include turbocharger, wastegate, or any component produced by a third party.
• Customer is responsible for shipping the failed part to us for repair or replacement.
• Warranty does not cover labor.
• Warranty does not cover cosmetic damage.

This 3D printed guard prevents damage to the USB port/cable on your Tactrix Openport 2.0 dongle.

One common problem with the Tactrix dongle is the mini USB cable being easily snagged when plugged in, causing damage both to the cable and the port itself. This can render your Tactrix unusable!

Simply snap this guard over your Tactrix dongle and use as normal. This will prevent both your cable and USB port from being damaged from a typical snag.

NOTE: TACTRIX CABLE NOT INCLUDED

Replace your fragile, rusted stock valve cover bolts with this beautiful stainless steel bolt kit! Includes all stainless bolts and cup washers in a variety of colors.

• 18 x Colored Cups
• 18 x Long Bolts
• 16 x Threaded Standoffs (two long bolts do not use a threaded standoff)
• 4 x Short Bolts for Coilpacks
• 4 x M6 Washers for Coilpacks

Installation Guide:

Replace your standard stock valve cover bolts with this beautiful stainless steel bolt kit! Includes all stainless bolts and cup washers in a variety of colors.

• 15 x Colored Cups
• 15 x Long Bolts
• 15 x Threaded Standoffs

Installation Video:

This bracket was made for the Mazdaspeed Protege running an upgraded GT2860 series turbo. It was designed to allow the compressor outlet to point downward, allowing for a cleaner path to a front mounted intercooler setup, similar to what was found on our T3 turbo kits.

Made in USA from stainless steel.

May require an extended wastegate actuator rod end for your wastegate.

These turbos by Tial are a bolt-on upgrade replacement for the factory turbos. Capable of 550-650whp. These are an upgrade for all of the 991.2 3.0L turbo motors including the Carrera, Carrera T, Carrera S, and Carrera GTS.

You will receive a refund for your cores of $2600 for a functioning K03 Turbo (from a Carrera/T/S) or $3200 for a functioning K04 Turbo (from a GTS).

These turbos by Tial are a bolt-on upgrade replacement for the factory turbos. Capable of 650-770whp. These are an upgrade for all of the 991.2 3.0L turbo motors including the Carrera, Carrera T, Carrera S, and Carrera GTS.

These are brand new turbochargers and do not require your cores to be sent in. 

You will receive a refund for your cores of $2000 for a functioning K03 Turbo (from a Carrera/T/S) or $2600 for a functioning K04 Turbo (from a GTS).

These turbos by Tial are a bolt-on upgrade replacement for the factory turbos. Capable of 650-770whp. These are an upgrade for all of the 991.2 3.0L turbo motors including the Carrera, Carrera T, Carrera S, and Carrera GTS.

You will receive a refund for your cores of $2000 for a functioning K03 Turbo (from a Carrera/T/S) or $2600 for a functioning K04 Turbo (from a GTS).

• M14x1.5 Grade 5 Titanium
• 20pcs total (4 x 17pt locks, 16 x 19mm bolts)
• Standard Length
• Available in bare or burnt Titanium 
• Includes security key
• 33% lighter weight than OEM steel bolts
• Won't rust
• 145,000psi tensile strength

Specify your bore and compression ratio in the order notes.

Please allow 8 weeks for delivery.

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.