Circuit Hero

The Circuit Hero Digital A/F Gauge w/ Bosch® 4.9 LSU Sensor accurately measures the engine's air/fuel ratio . Using a wideband air/fuel controller during the tuning process allows you to monitor AFR and adjust tuning parameters to optimize them for maximum power and efficiency.

Our sensors are individually laboratory-calibrated by Bosch and never require calibration.

FEATURES
4.9 LSU Sensor with Weld-In B**g Included
52mm (2 1/16”) Gauge Housing
Display Output from 10:1 to 20:1 AFR
LED Display w/ 3 Color Sweep from Red, Yellow, Green
Accuracy Down to 0.001 with a 4 Digit Display
0-5 Volt Output for ECU, Dataloggers, etc.

Our coilpack cover really transforms this engine bay giving it some contrast and even more of a motorsports feel. Needless to say we love it and those ITB's 😍

Owner:

The finishing details can make your engine bay look that much better!

We focus on making clean, simple and functional products that can bring your build to the next level

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. Made from CNC Machined 6061 Aluminum utilizing two flush mount doors and three low profile doors.

Engine Applications

USDM 02-04 RSX Type-S (K20A2)
USDM 05-06 RSX Type-S (K20Z1)
JDM K20A Engines (EP3 Civic/DC5 Integra Type-R)
UKDM K20A2 Engines (EP3 Civic Type-R)
RSX Type-S*
*Modifications Required:
Oil Pan: Acura/Honda Part Number: 1200-PRB-000
Oil Pump: Acura/Honda Part Number: 15100-PRB-A01
Chain: Acura/Honda Part Number: 13441-PCX-004
Chain Guide: Acura/Honda Part Number: 13460-PNC-004

**K24- Must use aluminum oil pan

Circuit Hero s2000 strut bar is such a nice touch. Our strut bars are designed with two horizontal steel bars tying each shock tower together. This will stop your car from flexing during track events as well as during casual spirited driving.

The perfect shifter 🙌
🔹81mm tall
🔹44mm diameter tapering down to 22mm
🔹Laser Grip feature for precision shifting
🔹Heavy 440 grams / 15 oz counter weighted

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The circuit hero b series spark plug cover gives you a clean motorsports feel to your b series engine

Billet Steering Wheel Hub Adapter,l: a functional product that looks great👌

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

This is an essential upgrade for any kseries engine from a simple swap to a full build

k20

The perfect shift k**b for your street or racecar

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Our 3 spoke 345mm steering wheel pairs perfectly with our quick release steering wheel hub

Circuit Hero Ultraform Shift k**b

80mm tall
44mm diameter tapering down to 22mm
Made from Durable, Lightweight, Heat Resistant Ultraform material
Available in Black and White finish
Perfect 86 grams weight

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Our billet wheel hub on this beautiful ep3 type r from

Circuit Hero Type-B Shift K**b is perfect for your street car or your race car

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30% off Circuit Hero! What more could you want?

Did you know what our flag colors stand for? These are the original eg and ek colors - Harvard Blue 🔵, Midori Green 🟢 and Milano Red 🔴

Simple, clean and most importantly functional

CircuitHero.com is 30% off don’t miss out on your last chance this year to save!

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The Circuit Hero Liquid-Filled Fuel Pressure gauge accurately measures the engine's fuel pressure with a 0 - 100 psi range giving you an accurate reading you can trust

The Circuit Hero shifter plate is the perfect touch to your build. Giving you a Motorsport feel while allowing you to maintain an OEM + styling

Merry Christmas and Happy Holidays from the entire Circuit Hero family ❤️

The laser grip type-b shifter is a simple design that just feels and looks great!

📸

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Save the b series …also save 30% off Circuit Hero

Owner:

The shifter just looks like it belongs 🙌

📸

Share this with some friends who need some Circuit Hero parts. This is your last chance this year to save!

Billet Steering Wheel Hub Adapter 👌

Keeping your engine lubricated under acceleration, deceleration and cornering is not easy. Our drop in billet oil pan baffle is here to save the day!

Machine from 6061 aluminum featuring thin profile mounts and doors for additional clearance

Fits: K20A/A2/Z1 Engines

We focus on making clean, simple and functional products that can bring your build to the next level. Our Steering Wheel Hub Adapter and Horn button are no exception to that!

The perfect shift k**b does exist 👌

🔹81mm tall
🔹44mm diameter tapering down to 22mm
🔹Laser Grip feature for precision shifting
🔹Heavy 440 grams / 15 oz counter weighted

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The circuit hero b series spark plug cover gives you a clean motorsports feel to your b series engine