Engine

The Circuit Hero Cooling Plate covers unwanted holes between the front bumper and the radiator. This then keeps cool air directed at the radiator for maximum cooling. The panel is made from lightweight aluminum and then powder coated in a wrinkle black finish. Applications:1992-1995...

The Circuit Hero spark plug covers have a "race inspired" look and are made from aluminum with dimple die cut-outs for maximum weight loss. Features Contoured Shape for Maximum Coverage and Fitment Laser Cut Construction from Thick Aluminum Plate Hand Brush Finish Premium Polished Stainless...

Circuit Hero high pressure radiator cap uses a 1.3 kgf/cm² spring to increase your coolant/antifreeze boiling point and protect your engine. An added bonus we've incorporated is the built-in button valve. To ensure there is no hot heat pressure built up, always press the...

The Circuit Hero Bolt-in K Series Oil Pan Baffle is a unique product that easily installs between the OEM Windage Tray and Oil Pan Floor. The baffle extends deep into the oil pan, dividing the sump into three sections, with the largest section surrounding...

  Reservoir covers are finally here! These high quality covers are made from cotton and feature embroidered Circuit Hero Flag on the front.  These are designed to soak up any fluid spillage during spirited driving. You can also use it as a wrist band to wipe...

All new Version 2 Circuit Hero spark plug covers are here! We didn't just bring our spark plug covers back, we have teamed up with Blox Racing and updated old and boring hardware! We are using Blox Racing's hot washer kits for a "race inspired" look. And...

The Circuit Hero lower timing chain guide provides two functions (1) replaces the oem lower chain guide and (2) also prevents timing chain slippage off the crank pulley chain gear when performing a camshaft swap.If you're a K-series enthusiast, you know about the keeping...

The Circuit Hero S2000 Clutch Master Cylinder spacer allows enthusiasts to directly bolt on a clutch master cylinder (CMC) from a Honda S2000 into their Civic or Integra engine bay giving cleaner aesthetics. The popularity of using an S2000 CMC adds to the clean...

All new Version 2 Circuit Hero spark plug covers are here! We didn't just bring our spark plug covers back, we have teamed up with Blox Racing and updated old and boring hardware! We are using Blox Racing's hot washer kits for a "race inspired" look. And...

Circuit Hero magnetic drain plugs are a must for performance enthusiasts and do-it-yourself fluid changers.  The powerful, magnetic stems attract metal shavings that circulate in the engine’s oil and transmission not trapped by the oil filter.  Circuit Hero magnetic drain plugs offer additional peace of mind...

Replacement hardware kits for Circuit Hero Coil Covers. These kits are complete according to your application and include unique Circuit Hero Genuine Parts brushed metallic decal.

Circuit Hero Titanium Magnetic Drain plugs are a must for performance enthusiasts and do-it-yourself fluid changers.  The powerful, magnetic stems attract metal shavings that circulate in the engine’s oil and transmission not trapped by the oil filter.  Circuit Hero magnetic drain plugs offer additional peace...

Circuit Hero oil caps are offered in either CNC-machined high quality billet aluminum in anodized black, and for the ultimate enthusiast, Grade 5 Titanium in raw finish. Features Billet CNC Machined Aluminum with Durable Anodized Finish Grade 5 Titanium in Raw Finish Iconic Circuit...

The Circuit Hero Billet K-Series Oil Pan Baffle is a unique product that easily installs on the oil pan floor and keeps oil nearby the oil sump arm preventing oil starvation and protecting engine components. Oil flows freely by utilizing five (5) doors and...

This Circuit Hero product helps eliminate unnecessary parts for a K-series race engine build. This billet coolant plug eliminates the coolant pipe that leads to the OEM K-series thermostat housing.Features CNC 1-piece Premium 6061 aluminum Easy Installation (does require the drilling of a small...

The Circuit Hero spark plug covers have a "race inspired" look and are made from aluminum with dimple die cut-outs for maximum weight loss. Features: Contoured Shape for Maximum Coverage and Fitment Laser Cut Construction from Thick Aluminum Plate Hand Brush Finish Premium Polished Stainless...

Whether upgrading for additional fuel delivery needs, to run upgraded fuel lines, or to simply clean up your engine bay, Circuit Hero's Aluminum Fuel Rail makes sure those needs are met. With it's 1/8 NPT port on top, -8 O-ring boss (ORB) ports on...

Whether upgrading for additional fuel delivery needs, to run upgraded fuel lines, or to simply clean up your engine bay, Circuit Hero's Aluminum Fuel Rail Combo makes sure those needs are met. With it's 1/8 NPT port on top, -8 O-ring boss (ORB) ports...