Porsche 102.00mm 996 997TT GT3 Machine In Nickies Mezger Sleeves Aluminum 108 102 644 332 221 02 GEN Please specify exact year of 971601025NC9X Please specify exact year of car when ordering and give us a call if you have any questions Designed as a stock replacement rod with no weight savings per the PCA CR rules but for added strength to prevent on track failures common to the stock M96 M97 connecting rod Porsche LN Engineering's billet aluminum Nickies sleeves optimized design provide superior strength and cooling over the factory cast aluminum Nikasil plated sleeve Typical specifications for our proprietary alloy provides 50 60% improvement with a similar increase in thermal conductivity over the stock 100mm cast aluminum sleeve