CSF BMW F8X M3/M4/M2C Auxiliary Radiators w/ Rock Guards (Sold Individually - Fits Left and Right Exhaust- Mufflers & Tips>Resonators Borla(r) Cat-Back(tm) & Axle-Back exhaust

Borla(r) Cat-Back(tm) & Axle-Back exhaust systems feature patented straight-through and multi-core technology is designed to unleash hidden horsepower

Dual full 3" Cat Back configuration tailored for the 3

It raises boost without increasing backpressure at the turbine which results in a more responsive and power efficient engine

Titanium Color Cerakote Ceramic outside finish with Copper Ceramic coating on the inside of headers

CSF BMW F8X M3/M4/M2C Auxiliary Radiators w/ Rock Guards (Sold Individually - Fits Left and Right Exhaust- Mufflers & Tips>Resonators Borla(r) Cat-Back(tm) & Axle-Back exhaustCompared to the OEM F8X coolers, the CSF units are a significant upgrade. CSF eliminated the OE plastic mounting pod by incorporating it into the modular design that fits both sides. This design improvement increases the size of both the core and tanks. The extra space taken from the mounting pod allowed for a 7% increase in Core Size and an 10% increase in Tank Volume. With a larger 2 row 42mm core, cooling efficiency and capacity are drastically