Tomei Stroker Kits are an excellent way to increase both horsepower and torque throughout the entire power band. The old saying there is no replacement for displacement still holds true today. By increasing your engines bore and stroke you get the results of having a larger engine such as more low end torque and more horsepower. Tomei's Stroker kits are comprised of fully forged connecting rods, pistons, and crankshafts, which are much more durable than the factory cast units. When subjected to extreme conditions and heat cast metal is much more likely to fracture than forged metal, causing catastrophic engine failure and expensive repair bills. Upgrading your engine's internals gives you the peace of mind knowing that your engine can handle being pushed to its limit.BENEFITS OF A STROKER KIT:More torque throughout the entire RPM bandMore low-end torque if employing a larger turbocharger on an otherwise factory displacement engineFaster response with a conventional or mid-framed sized turbochargerMore upper-RPM range and higher-revving due to increased bore and displacementIncreased piston speedMaximizes the efficiency of your valves with increased volumetric efficiency and more surface area at higher RPMImproves the overall combustion efficiency and volumeAllows for less surface area available to reject heat in the combustion areaImproved combustion burn duration by burning the air/fuel mixture faster improves the efficiency Tomei Stroker Kit RB26DETT/RB25DET 2.6 Full Counter   Tomei Piston CP Piston BORE (mm) 87.00 (OEM +1.0) 87.00 (OEM +1.0) STROKE (mm) 73.70 (OEM ±0.0) 73.70 (OEM ±0.0) DISPLACEMENT (cc) 2628.7 2628.7 C.C. VOLUME (cc) 64.5 64.5 PISTON DOME VOL. (cc) 10.8 12.4 PISTON DECK CLEARANCE/HIGHT (mm) ±0.0 ±0.0 PISTON COMP.HEIGHT (mm) 30.00 (OEM ±0.0) 30.00 (OEM ±0.0) ROD C-to-C (mm) 121.50 (OEM ±0.0) 121.50 (OEM ±0.0) HEAD GASKET BORE (mm) 88 88 C/R With 88.0-1.2 8.18 8.38 C/R With 88.0-1.5 7.97 8.16 C/R With 88.0-1.8 7.78 7.95