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Honda Civic Mugen RR – The Ultimate Evolution of the Type R

Engine: K20A 2.0L I4 i-VTEC
🏁 Power: 240 hp

The Story of the The Honda Civic Mugen RR

History & Legacy

2007–2008

Some cars are built to sell.

Others are built because engineers simply couldn’t leave well enough alone.

The Honda Civic Mugen RR belongs firmly in the second category.

Created by Mugen — Honda’s legendary motorsport and tuning division — the RR took the already brilliant Civic Type R and pushed it into full road-legal race car territory.

Lighter. Sharper. Louder. Rarer.

And with only 300 units ever produced, it instantly became one of the most desirable modern Hondas ever made.


History & Legacy

The name: RR = Racing renown

And honestly, Honda wasn’t being subtle about the car’s intentions.

Mugen was founded by: Hirotoshi Honda

The company has always existed in a fascinating space between factory-backed engineering and motorsport obsession. While technically independent, Mugen has long been considered Honda’s semi-official performance arm.

The Mugen RR represented the absolute peak of that relationship.

Built from the FD2 Civic Type R platform, the RR wasn’t designed as a cosmetic special edition. Nearly every component was reworked to improve performance.

This was Honda engineering at full attack mode.


Weight Reduction Above Everything

Mugen treated weight savings like a personal mission.

The RR featured extensive carbon fibre components including:

  • Front bumper
  • Bonnet
  • Front fenders
  • Rear wing

Even the rear wiper was deleted in the pursuit of lower mass.

The result?

Just 1,190 kg curb weight.

For a modern hatchback, that’s incredibly light — especially by today’s standards where performance cars seem to gain 100 kg every time someone adds a touchscreen.


The Hand-Finished K20A Engine

At the heart of the Mugen RR sat one of Honda’s greatest engines:

K20A VTEC

Honda K20A

Mugen engineers hand-ported and polished the cylinder head to improve airflow and throttle response, extracting:

  • 240 horsepower
  • 8,300 RPM redline
  • Sharper mid-range torque delivery

On paper, the increase over the standard Civic Type R looked modest.

On track?
Completely different story.

The RR felt more urgent, more responsive, and far more aggressive than the numbers suggested.

Classic Honda behaviour:
“Here’s 10 extra horsepower. Somehow the entire car now feels possessed.”


Chassis & Track Performance

Power was only part of the equation.

Mugen completely reworked the chassis with:

  • Adjustable dampers
  • Stiffer springs
  • Thicker anti-roll bars
  • Lightweight forged wheels
  • Semi-slick tyres

The result was a Civic capable of humiliating far more expensive sports cars around a circuit.

The steering response, body control, and front-end grip became legendary among Honda enthusiasts.

This wasn’t a comfortable hot hatch.

It was a precision instrument.


Why the “Double R” Matters

Honda’s standard:

Type R

…already stood for racing pedigree.

But Mugen added another “R” to signify something even more extreme:

Racing Renown.

Previous Mugen performance specials used single-R naming, making the RR the most hardcore road-going Civic Mugen had ever produced.

And arguably still is.


Rarity & Collectability

The Mugen RR is exceptionally rare:

  • Only 300 units built
  • Primarily sold in Japan
  • Very few exported worldwide

Because of this, values have skyrocketed:

  • Collector-grade examples command huge premiums
  • Low-mileage cars are increasingly difficult to find
  • Original-condition RRs are treated almost like museum pieces

For many enthusiasts, it represents the end of a golden era:

Lightweight, naturally aspirated, analog Honda performance.

No hybrid systems.
No fake engine noise.
No oversized touchscreens trying to launch Spotify during a corner.

Just VTEC and violence.

Final Thoughts

The Honda Civic Mugen RR represents everything enthusiasts love about old-school Japanese performance engineering.

It’s focused.
It’s uncompromising.
And it exists purely because a group of engineers wanted to build the best front-wheel-drive Honda possible.

In today’s world of increasingly digital performance cars, the RR feels almost rebellious.

A naturally aspirated scream machine built with one purpose:

Delivering maximum driver engagement, every single time.

Technical Specifications
EngineK20A 2.0L DOHC i-VTEC Inline-4
Power240 hp @ 8,300 rpm
Torque157 lb-ft @ 6,250 rpm
Transmission6-speed manual (close-ratio)
DrivetrainFWD
Weight11,190 kg (2,624 lbs)
0-60 mph5.9 seconds
Top Speed150 mph
LayoutFront-engine, FWD
Body3-door hatchback

FAQs – Honda Civic Mugen RR

1What is the Honda Mugen RR?
The Honda Mugen RR is an ultra-limited high-performance version of the Civic Type R developed by Mugen, Honda’s motorsport-focused tuning division.
2How many Mugen RRs were made?
Only 300 units were produced, making it one of the rarest modern Honda performance cars.
3What engine does the Mugen RR use?
It uses a specially tuned naturally aspirated K20A VTEC engine producing around 240 horsepower.
4Why is the Mugen RR so expensive?
Its rarity, motorsport pedigree, lightweight engineering, and connection to Honda’s performance heritage make it highly collectible.
5Is the Mugen RR faster than a standard Civic Type R?
Yes. While the power increase is relatively small, the reduced weight, upgraded suspension, and improved chassis setup make it significantly sharper on track.
6Is the Honda Mugen RR road legal?
Yes. Despite its track-focused engineering, the Mugen RR was fully road legal from factory production.