*sighs* numbers vary depending where you are, etc.
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The Corksport 3inch downpipe for the Mazdaspeed3 is the most efficient design to date for the Mazdaspeed3. With gains of 30whp and a unique divorced gases design, no other downpipe comes close at this quality or price. The downpipe includes full install directions as well as a Check Engine Light Eliminator which prevents the secondary o2 sensor from throwing a emissions code.
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Vibrant STREETPOWER Cat-Back Exhaust Systems are styled for the street and engineered to perform!
All STREEPOWER Cat-Backs Feature:
- 16 gauge Stainless Steel exhaust tubing for superior durability and exhaust resonance control. The tubing is CNC Mandrel Bent for unrestricted exhaust flow.
- "True Straight Through" Rear Mufflers and Resonators are densely packed with our premium sound suppression materials to help produce a low, deep exhaust tone.
- Full TIG Welds for optimum strength.
- Easy Bolt-On installation, utilizing all stock mounting points
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This is a complete set. The CS dp has no cat, divorced wastegate tube = loud and more HP
The vibrant exhaust connects directly to the DP, one high flow cat, 3" piping = efficient, less backpressure, louder, more hp
This is the same setup I ran on my ms3 and I recommend it to everyone. Its the simplest, and in my opinion, the best combo out there.