Engine | SPIRIT ROAD USA https://spiritroadusa.com Take The Road Less Driven. Sat, 01 Aug 2026 00:57:59 +0000 en-US hourly 1 https://wordpress.org/?v=6.0.14 https://i0.wp.com/spiritroadusa.com/wp-content/uploads/2019/02/cropped-spirit-road-a-150-x-150.jpg?fit=32%2C32&ssl=1 Engine | SPIRIT ROAD USA https://spiritroadusa.com 32 32 158058805 Rev9 Power Cold Air Intake Chamber 1990-1993 Miata 1.6 https://spiritroadusa.com/product/rev9-power-cold-air-intake-chamber-for-1990-1993-miata-1-6/ Wed, 31 Dec 2025 01:08:17 +0000 https://spiritroadusa.com/?post_type=product&p=3275 Read More]]> We offer and sell the Rev9 Power Cold Air Intake Chamber for the 1990-1993 Miata.  Similar to the highly sought after ARC “whale penis” intake chamber.  Direct bolt on kit complete with aluminum air intake pipe and includes T-bolt clamps and blue silicone couplers.

  • For 1990-1993 1.6 Miatas only
  • All cast aluminum construction
  • Includes T-bolt clamps
  • Includes silicone couplers
  • Not CARB legal.  For Off Road use only.
  • Easy to install
  • Use mild soap and water to wash and rinse inside of aluminum pipe prior to use
  • For shipping to Hawaii, Alaska, Puerto Rico, Guam, Air Force Bases, Military Bases or outside of the US, please send us an email for a quote at:  spiritroadusa@gmail.com

 

]]> 3275 Spirit Road Idle Air Control Valve Adapter for ITB’s https://spiritroadusa.com/product/spirit-road-idle-air-control-valve-adapter-for-itbs/ Tue, 05 Nov 2024 22:21:37 +0000 https://spiritroadusa.com/?post_type=product&p=3120 Read More]]> Having an idle air control valve with your ITB’s is a must.  If anyone tells you differently, run the other direction.  Needed for cold start, stable idle, etc.  Most aftermarket ECU’s allow you to activate iacv.  And if you run AC with ITB’s, it’s even more critical to have a working idle air control valve.

  • Requires a Mazda Miata 98-05 idle air control valve (not included)
  • Threaded for -6AN fittings.  We recommend using -6AN ORB to 3/8 or 5/16 straight hose barb (sold separately).
  • Made from aluminum.  Lighter.  Stronger.  Anodized in a sleek jet black color.
  • Comes with adapter and bracket to mount on chassis.  Multiple threaded M6 (10mm) holes on front, back and sides.
  • Some photos shown are from our first generation Spirit Road idle air control valve adapters
  • Includes 2 – M6 stainless steel bolts/nut to attach iacv to adapter, 1 – M6 10mm stainless steel bolt to mount bracket to Miata chassis (not shown in photos)
]]> 3120 Maruha Flywheel Locking Tool https://spiritroadusa.com/product/maruha-flywheel-locking-tool/ Sat, 04 Nov 2023 00:07:04 +0000 https://spiritroadusa.com/?post_type=product&p=3069 Maruha special flywheel locking tool.  This tool is used to hold your flywheel in a fixed position so you can tighten and torque down your flywheel to specs.

  • Imported from Japan
  • Maruha Motors Japan original product
  • Brand new

For shipping outside of the US, please send us an email for a quote at:  spiritroadusa@gmail.com

]]> 3069 Spirit Road Oil Catch Tank for 90-05 Miata https://spiritroadusa.com/product/spirit-road-oil-catch-tank-for-90-05-miata/ Thu, 29 Jun 2023 23:11:03 +0000 https://spiritroadusa.com/?post_type=product&p=2845 Read More]]> I designed this oil catch tank for all the different ITB (individual throttle body) iterations on my demo car.  Back in 2017, I was looking for a universal and/or off the shelf solution, but there weren’t any.  So I drawn one up and sourced all the materials/bits and had it tig welded together.  I tested it several times and made several revisions.  The final product has an internal baffle, allows use of 8 AN fittings, an air filter and a drain plug.  The oil catch tank also mounts to the chassis utilizing an existing hole where the oem airbox mounts to.  This oil catch tank is a good solution for anyone utilitizing ITB’s.

  • Comes with (1) 3″ inch breather and (2) 3/8″ inch hose barb fittings
  • Allows you to use -8AN fittings, or step up from -8AN to -10AN fittings (not included)
  • The internals have baffle plates and an ORB drain plug on the side for draining oil
  • Made of high polished aluminum
  • Mounts on Driver’s Side in the original airbox location
  • Fits 90-05 Mazda Miata only
  • May be used as a universal oil catch tank or buy and modify for your needs
  • For shipping to Hawaii, Alaska, Puerto Rico, Guam, Air Force Bases, Military Bases or outside of the US, please send us an email for a quote at:  spiritroadusa@gmail.com
  • Also featured and sold on Rev9 Power’s website
  • Not CARB legal.  For Off Road use only.
  • Dimensions:  160mm x 110mm x 110mm
]]> 2845 Rev9 Power Air Intake Box Kit 1994-1997 Miata 1.8 https://spiritroadusa.com/product/rev-9-power-air-intake-box-kit-1994-1997-miata/ Tue, 07 Jul 2020 03:01:30 +0000 http://spiritroadusa.com/?post_type=product&p=2097 Read More]]> We offer and sell the Rev9 Power Air Intake Box Kit for the 1994-1997 1.8 Miata.  Similar to the highly sought after ARC and Mazdaspeed Air Intake boxes of yesteryear.  Direct bolt on kit complete with aluminum air intake pipe, separable aluminum airbox with reusable mesh high performance filter.  Coated in a high heat matte black coating.  Includes T-bolt clamps and silicone couplers.  Requires reusing oem grommets and hardware to mount to your 1994-1997 Miata.

  • For 1994-1997 Miatas 1.8 only
  • All aluminum construction
  • Coated in high heat matte black
  • Includes T-bolt clamps
  • Retains your OEM MAF Sensor
  • Not CARB legal.  For Off Road use only.
  • Easy to install
  • Reuse 2 spacers from your OEM Airbox where the MAF bolts to
  • Use mild soap and water to wash and rinse inside of aluminum pipe prior to use
  • For shipping to Hawaii, Alaska, Puerto Rico, Guam, Air Force Bases, Military Bases or outside of the US, please send us an email for a quote at:  spiritroadusa@gmail.com
  • We recommend upgrading the 3 allen screws for the airbox brackets to M5 x 20mm with stainless washers for better fitment and rigidity (if not included)
  • Watch Ryan’s video @driveitryan for install tips:  https://www.youtube.com/watch?v=_pyKyCkNwwY

 

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