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Old 03-07-2021, 08:27 PM   #1
Vaider
 
Drives: 18 NFG 1SS 1LE
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Rear cat delete?

Going with the MBRP cat back. Any advantage to getting rid of rear cats while I'm at it?
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Old 03-08-2021, 08:56 AM   #2
joekd
 
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Deleting the 2nd cats give it a slightly deeper tone, I did it and resold the cats which almost covered the entire cast of the shop deleting them and welding in new pipes
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Old 03-08-2021, 01:07 PM   #3
seethruya
 
Drives: 2021 Camaro LT1 Conv
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Quote:
Originally Posted by Vaider View Post
Going with the MBRP cat back. Any advantage to getting rid of rear cats while I'm at it?
I’m not sure if there’s any noticeable power gains from deleting the secondary cats but it will sound better. Deeper and fuller exhaust note.
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Old 03-08-2021, 05:37 PM   #4
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The exhaust system will flow better without the secondary cats, better flow, more power. It may be minimal, but still more HP.
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Old 03-23-2021, 07:57 AM   #5
JRodSan
 
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Here’s a comparison between stock, secondary cat delete and mbrp axleback. Definitely a deeper tone and quite a bit more pops.

https://youtu.be/c4wV6amhnww
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