Perrin Turbo Sump Restrictor - Subaru WRX VA Exhaust the engine output can be

the engine output can be increased to 540ps without engine power-loss

The R40 unique feature (patent pending) of this six-sided

70mm piping diameter

(Some models are NOT compatible with EDFC series

use best judgment

Perrin Turbo Sump Restrictor - Subaru WRX VA Exhaust the engine output can beFix both the burning oil smell and blue exhaust smoke problems associated with your WRX turboback exhaust or Stage 2 and higher WRX by installing the PERRIN Turbo Sump Restrictor. Many customers experience a burning oil problem or blue smoke coming from their exhaust after installing aftermarket J Pipes or turboback exhaust systems. Installing these parts on 2015+ WRXs (FA DIT engine) causes a change in exhaust pressure, allowing engine oil to escape