COBB Tuning Stainless Steel 3″ Catback Exhaust – Mazda Mazdaspeed3 Gen2
- 304 Stainless Steel for Corrosion Resistance
- 3″ to Dual 2.5″ Mandrel Bent Piping
- Dual 4″ Double Walled Slash Cut Tips
- Works with COBB, Stock and Direct Replacement Downpipes
- Within SAE J1169 Sound Restrictions
The layout of this COBB 3″ SS catback was chosen to minimize the total bend degrees used to route the exhaust piping for reduced back pressure. The entire system fits within the factory exhaust path to allow the exhaust to be tucked up as close to the undercarriage as possible to achieve maximum ground clearance. Exhaust piping is 3″ diameter from the downpipe to the split, where dual 2.5″ pipes whisk the exhaust out of the system. The resulting path of least resistance minimizes back-pressure for maximum power gains. Harsh engine exhaust noise is subdued via one primary resonator and one secondary resonator. These chambered resonators provide sound reduction without adding restriction to the exhaust flow. The resulting mellow rumble sounds and feels powerful, without being overbearing. This exhaust was designed to meet the 95dB sound restriction even when used as part of a full turbo-back exhaust system. Significant effort went into making this exhaust look as good as it sounds and performs. Both resonators are custom built and finished with beautiful welds. The 2.5″ and 3″ stainless steel piping has a satin finish for a stunning appearance. The exhaust is finished with two 4″ slash-cut, double-wall rolled tips with laser etched COBB logos. The entire kit is constructed of T304 stainless steel to ensure that it stays looking this great for years to come. This cat-back exhaust will work with the stock or any direct factory replacement downpipe. The two bolt flanges allow slight adjustability for absolutely perfect fitment. Includes all gaskets and hardware, and uses the stock doughnut gasket to mate to the downpipe.
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