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The COBB Stage 1+Big SF Power Package is a simple bolt-on and tuning solution that will allow you to easily improve the power output of your 2015+ WRX
Performance Plus Dyno Graph
The most comprehensive Power Package available for your Mustang EcoBoost
100% Rebuildable if there ever is an o-ring failure
This provides an improved seal compared to other methods
COBB TUNING MAZDASPEED3/MPS 3 GEN1 SS 3" CAT-BACK EXHAUST ECOBOOST The COBB Stage 1+Big SFDESCRIPTION The COBB Tuning Gen1 MAZDASPEED3 MPS 3 Cat Back is constructed purely from 304 Stainless Steel. The system starts with a stock donut style flange that mounts to the OEM downpipe or any stock replacement downpipe, such as the COBB Tuning 3" Downpipe. Next up is a polished resonator section with attractive rolled end cap, followed by a polished low restriction straight through muffler section, also with this attractive rolled end caps. A
