Porsche 911 With Audi RS4 Power Solves 996 Reliability Problems

Another reason why Renn27 wanted to replace the original M96 engine was its unreliability factor, which could eventually become a money pit. IMS bearing failure and cylinder scoring are common, giving the 911 996 generation a bad name.

Compared to an M96 flat-six, you could get an Audi 2.7T for around $1,000. That and cheaper repair costs could help keep a 911 996 in tip-top shape in the long run.

Renn27’s engine swap package includes upgraded exhaust, intake, engine water cooling, charge water cooling, air conditioning, and electrical systems. The engine is also coupled with Bosch injectors, upgraded connecting rods, and a 2.7T ECU tune, enabling a 525 horsepower output, as proven by the dyno charts below.