Emissions Notice:

Top Speed Limiter Removal: Unlock full speed potential for track-only vehicles

0L B58 engine found in the 340i

Each piston is meticulously designed using computer-aided design (CAD) and finite element analysis (FEA) to optimize strength

Reliable Power and Efficiency: Improves engine output and efficiency

Precision Turbo Next Gen 73.9-85 Class Legal Turbine Housing - A/R:Sportsman T4 Divided 4-Bolt - 1.28 A/R Emissions Notice:The Precision Turbo Next Gen R 73. 9 is a race proven evolution of the original 73. 9mm turbo that currently holds the xFWD world record at 7. 69 @ 188mph. Now updated with a new compressor wheel and redesigned compressor cover, the R version delivers over 10% more horsepower than its predecessor and its fully legal for xFWD and Super Street competition. This turbo is engineered specifically for the extreme demands of front wheel drive drag racing,