CTS Turbo B9 S4/S5 3.0T (EA839) cat-delete test pipe is made to maximize exhaust flow for highest power gains. Do not compromise performance and sound with factory parts - unleash your B9 S4/S5 3.0T potential!\n\nDesigned using the latest in CAD technology; this part is made to fit perfectly in place of restrictive factory catalytic converter. Manufactured from T304 stainless steel, hand TIG welded and back-purged to ensure years of reliable performance.\n\nIn addition to unleashing the power and performance of your 3.0T, the CTS B9 S4/S5 3.0T EA839 test pipe will make your vehicle sound like an S-car really should. When installed with factory exhaust it produces a sporty growl with much more pronounced exhaust "crackle" on downshift. While up-shifting you will enjoy a confident "braappp!" as you bang through all 8 gears. The sound will be even louder if you already have an aftermarket exhaust system.\n\nProduct Details:\n
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- Designed and tested on a real car in the real world \n
- T304 stainless steel, TIG welded back-purged construction \n
- Replaces restrictive factory catalytic converter \n
- Install hardware included (gaskets not included) \n
- Great power upgrade with uncompromising performance \n
- Incredible sporty exhaust sound, subtle when cruising \n
- No drone with factory exhaust \n
- Stunning polished finish for great looks \n
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- 2018+ Audi S4 3.0T (EA839) \n
- 2018+ Audi S5 3.0T (EA839) \n