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BMW M5 F90 (2018+) General Forums Engine, Exhaust, Drivetrain, Tuning Modifications    Catted downpipes

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      05-04-2019, 08:53 PM   #45
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Anyone think with HJS 200-cells plus O2 extension we could avoid a CEL? No doubt at some point it will get thrown without the extension.
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      05-05-2019, 12:11 PM   #46
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Originally Posted by somer View Post
Anyone think with HJS 200-cells plus O2 extension we could avoid a CEL? No doubt at some point it will get thrown without the extension.
I have same Cat on my M2... nothing Additional... 6,000 miles later no CEL.

I HIGHLY doubt it'll throw the code at all.

Save your money on the extension
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      05-06-2019, 05:49 AM   #47
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Originally Posted by gtenedio View Post
this m tax has gone way too far. 2700 for catted dp is insane 🙄
HJS cats alone are $900, obviously it’s easier to copy someones product, spend $0 on development, mass produce it in Taiwan and use cheap $100 cats. But we are hiring more staff, buying more metal as we’re growing and will be cutting costs soon, everyone who dealt with our product can confirm top quality, performance, and fitment as we 3D model all of our products off the car, and use expensive machinery, professional staff, and high quality materials for manufacturing.
When do you expect prices to go down? Do you offer any type of discount now? PM ME. USED/NEW whatever...
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