Exhaust straight pipe ?

2023 NISSAN ALTIMA
59,678 MILES • 2.4L • 4 CYL • 2WD • AUTOMATIC
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CHRISTIANMONRO
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  • 4 POSTS
There’s nothing really wrong with my car. I just wanna know. I removed my resonator and replaced it with a straight pipe and I removed the mufflers, but the pipe still goes all the way back to the rear of the car and I kept the catalytic converter and the O2 sensors I was wondering if there’s any long-term damage that can happen to my engine with me having a muffler delete and no resonator
Sep 24, 2025 at 2:03 PM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,193 POSTS
  • ASE Certified Mechanic
Hi:

Chances are, it will be fine. On the other hand, your ears may not be. LOL, you have done nothing but provide an easier exhaust flow. However, I don't know where you live and what the laws are there. Some places require a muffler at least.

Let me know if you have questions.

Take care,

Joe
Sep 24, 2025 at 8:32 PM
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KRAKENAUTO
  • ✓ASE Certified Mechanic
  • 44 POSTS
  • ASE Certified Mechanic
Not normally, as long as the oxygen sensors and catalytic converters are in place it should be fine, but definitely noisey. However please know that it may void any warranty you have on the vehicle.
Sep 27, 2025 at 8:08 PM
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