Pauter Forged X Beam Connecting Rods Set CA625+ Subaru STi WRX EJ205 EJ207 EJ255 EJ257

Years of hands-on experience, working with rods of all shapes and materials, of all types of racing and racing-related abuse, with design failures (and successes), has resulted in a fairly comprehensive file on just what works - and what doesn't - on the subject of high performance connecting rods. From this body of knowledge we have selected and incorporated the elements into what it is we think a great rod should be. Right off, our rod looks different, that's obvious, but for some not so obvious and very good reasons.  

For starters, the simple beam design completely eliminates thin and non-uniform cross sections over the total length of the beam. This feature greatly improves resistance to crack-induced metal fatigue. In addition, the non-tapered profile of the beam helps to spread potentially harmful stress over a larger area, dispersing instead of concentrating these destructive loads. The design also efficiently places needed material in critical transitional areas, giving maximum support exactly where it is needed (such as directly under the wrist pin). The streamlined contour also provides subtle benefits in the form of windage reduction.  Pauter rods are indeed, different by design.

Specifications                                   
E4340 vacuum melt chrome moly forging – CNC machined
Heat-treated to Rockwell C36; full coverage shotpeened; end-to-end balanced in sets.
Each rod comes with ARP 625+ bolts rated at 220,000 psi tensile strength.
Aluminum-bronze wrist pin bushings