Ultimate Racing 3" High Flow Cat Downpipe (Metal Core) - Mazdaspeed 3 07-10+

- 3-inch 304 stainless steel piping
- Bellmouth design
- Replaces  OEM primary catalytic converter with our High Flow metal substrate core (efficient to 750 hp)
- TIG welded to perfection
-Proprietary "3-inch Donut Gasket" for a TRUE unrestricted 3-inch design
- Bolt-on

Dyno chart:

Catback/TestPipe
Max Horsepower: 274.91
Max Torque: 313.80

Catback/TestPipe/CatlessDownpipe
Max Horsepower: 281.11
Max Torque: 314.38