Primary catless with stock secondary DP
| 09-01-2022, 05:07 AM | #1 |
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Drives: BMW M5 Competition
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Location: Sofia, Bulgaria
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Primary catless with stock secondary DP
Sorry if there is similar thread, but I couldn't find it…
I want to go with catless primary while leaving my stock lower DP, because I need the OPF sensor to be in place. I have two main concerns if anyone can share experience - will be there any smell by removing the primary cat and what is the chance to burn or melt my stock secondary catalytic. The car is EU spec without burbles and backfires. Thanks you guys |
| 09-01-2022, 09:43 AM | #2 |
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no issue with melting or burning cats, but there might be a more noticeable fuel smell with the primary cats removed
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| 09-01-2022, 09:47 AM | #3 |
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Hi,
There will be very little smell with the secondarys intact. There will definitely be no burning of the cats or damage by removing the primaries. We have them in stock if you need a set. https://mad-us.com/mad-bmw-f90-m5-downpipes-s63r/
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Last edited by Info@mad-us.com; 09-01-2022 at 10:07 AM.. |
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