RCM / Arrow Xtreme H-Section Con Rod Set (+1mm longer)



inc. vat / £1,560.00


inc. vat / €1,778.56


If you are looking for a strong, balanced, lightweight and reliable connecting rod for your 600+bhp engine then look no further than the RCM Xtreme Connecting Rod produced by Arrow Precision.

Quality. Innovation. Performance. The hallmarks of Arrow Precision. Only the highest quality raw materials, the latest methods and the knowledge of superbly skilled designers and engineers goes into the making of every Arrow Precision Connecting Rod. The high strength RCM H Section Connecting Rod is carefully and precisely manufactured by these very craftsmen using a low sulphur Vacuum de-gassed nickel chrome alloy steel called EN24 in “V condition”, with a pined surface finish. Each rod is ultrasonically tested, crack detected and balanced to within a gram of each other before finally receiving the RCM seal of quality in the form of our laser engraved logo.

The RCM Xtreme 1mm longer conrod is typically used in conjunction with a 75mm crankshaft to offer a smaller conrod angle resulting in a higher revving engine.

Each con rod set is supplied with ARP bolts and a sachet of ARP assembly lube.

Ease of Fitment Guide


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# technical specification

Beam Width: 17mm 

Big End Diameter: 55.008

G/Pin Diameter: 23.000

Between Centres: 131.450

Big End Width: 21.400

Small End Width: 21.400

Bolt Size: 3/8 UNF

Quantity in Set: 4

# key features

  • Designed for engines producing in excess of 600bhp.
  • +1mm longer than OE conrod.
  • Direct replacement connecting rod for all EJ20 and EJ25 Impreza Turbo models.
  • Double air re-melt steel.
  • Fully machined.
  • Uniform machine peening.
  • Balanced end to end within a gram.
  • 100% magnaflux tested.
  • Laser etched with RCM Logo.
  • Fitted with ARP fasteners.
  • Supplied with ARP moly and full fitting instructions

# confirmed applications

A 1mm longer connecting rod is typically used with a 75mm stroke crank to produce a smaller rod angle and therefore create a higher revving engine.

These rods can be used in a variety of EJ20, EJ22 and EJ25 engine builds.


# shipping

    Box Dimensions

    Dimensional Weight

    Actual Weight


17x20x10 cm

0.56 kg

2.85 kg

# other recommendations


RCM High Performance Oil Filter


RCM 12mm Modified Oil Pump


RCM / STI Timing Belt Kit 2002+MY EJ20/22/25


RCM / Omega Piston Set - Gobstopper I & II EJ20

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