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M2 Technical Topics > N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > Any feedback on ER catted downpipe?

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      11-07-2021, 09:29 AM   #1
mahsan988
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Any feedback on ER catted downpipe?

Just as the title states.. just trying to get some feedback on the catted ER DP.
Appreciate any input!
Thanks
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      11-08-2021, 08:53 AM   #2
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What would you like to know?

quality: second to none. Handbuilt in the US

fitment: spot on

CEL: on a stock car or a car tuned by a piggyback (jb4, racechip,etc...) you will eventually get a check engine light.

If your car is flash tuned (bm3) or you do not care about the CEL engine, the Evolution Racewerks is a great option and is on sale (check my signature for the link)
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      11-08-2021, 09:18 AM   #3
mahsan988
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Quote:
Originally Posted by mike@x-ph.com View Post
What would you like to know?

quality: second to none. Handbuilt in the US

fitment: spot on

CEL: on a stock car or a car tuned by a piggyback (jb4, racechip,etc...) you will eventually get a check engine light.

If your car is flash tuned (bm3) or you do not care about the CEL engine, the Evolution Racewerks is a great option and is on sale (check my signature for the link)
Thanks Mike, just looking for feedback on sound and performance.

My goal is to flash BM3 along with the DP install but want to know how emissions will work for MA inspection before I make a decision on the DP
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      11-08-2021, 12:18 PM   #4
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Quote:
Originally Posted by mahsan988 View Post
Thanks Mike, just looking for feedback on sound and performance.

My goal is to flash BM3 along with the DP install but want to know how emissions will work for MA inspection before I make a decision on the DP
It depends on the laws of your state but the bm3 does not help you pass emission illegally.

Performance and sound are similar to most other catted downpipes available. It's noticeably louder on cold start and high RPM. Almost identical to stock at cruising RPM
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      11-08-2021, 01:20 PM   #5
M Fifty
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Quote:
Originally Posted by mahsan988 View Post
Just as the title states.. just trying to get some feedback on the catted ER DP.
Appreciate any input!
Thanks
I understand new members randomly mention them on forums prior to a supplier responding?

Last edited by M Fifty; 11-08-2021 at 01:43 PM.. Reason: Because they are new members
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      11-09-2021, 08:49 AM   #6
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Quote:
Originally Posted by M Fifty View Post
I understand new members randomly mention them on forums prior to a supplier responding?
I don't get it, what am i missing here?
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