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2Addicts | BMW 2-Series forum Technical Topics N20 (228i) / B46 (230i) Engine, Transmission, Exhaust, Tuning Stone Exhaust N20 N26 Eddy Downpipe ** NO CEL GUARANTEE **

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      05-03-2019, 12:38 AM   #1
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Talking Stone Exhaust N20 N26 Eddy Downpipe ** NO CEL GUARANTEE **

Eddy Catalytic Downpipe

Meet the latest technology that adheres to the world's increasingly stringent environmental regulations at the same time enhances performance to another level. In comparison to commercially available linear frustums, the "eddy catalytic technology" adopts an arc-packaging method.

The turbine emissions process produces a vortex effect which purifies the exhaust gases while maintaining an equal amount of back pressure. When compared to a variety of horsepower tests and straight downpipes, our patented eddy catalytic technology can effectively increase horsepower and torque.

Features:
1. Patented O2 sensor technology design provides real-time data performance by accurately sensing every rotating displacement. No more delayed or error code problem.

2.Using one of the rare noble metal to help efficiently filter out exhaust gas.

3.Computer simulation of the best diameter.

4.A special 3D design able to achieve a perfectly matching model with the original pipe. the same installation applies, no need to modify.

5.SUS304 Stainless steel.

6.Dual Cross-Welding Technology providing substantial increase durability.

N20 Catless


N20 Catted


N26 Catless


N26 Catted
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      05-08-2019, 03:59 AM   #2
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Hello, I may have a stupid question, but...
Is the N26 catless downpipe for f22 and f30 the same?
Are the one from f30 compatible with an f22?
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      05-08-2019, 10:51 AM   #3
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Quote:
Originally Posted by TheNoOne View Post
Hello, I may have a stupid question, but...
Is the N26 catless downpipe for f22 and f30 the same?
Are the one from f30 compatible with an f22?
Hi,
It is the same downpipe
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      05-08-2019, 03:02 PM   #4
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Thanks!
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      05-08-2019, 11:48 PM   #5
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Thanks!
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      04-09-2020, 11:29 PM   #6
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soo wait...this catless downpipe offers the same hp increase as other catless downpipes but doesnt throw a CEL at all?????

Is this really possible?????
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      04-10-2020, 11:37 AM   #7
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Quote:
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soo wait...this catless downpipe offers the same hp increase as other catless downpipes but doesnt throw a CEL at all?????

Is this really possible?????
Catless will throw a CEL, the catted pipe will not
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      05-01-2020, 01:16 AM   #8
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So the No CEL is why the catted is more expensive (roughly double the price) than the other downpipes?

Also, I couldn't find any info on whether or not it will work on the N20 228i conv (F23). Any assistance with that information would be greatly appreciated.
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      05-01-2020, 01:48 AM   #9
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Quote:
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So the No CEL is why the catted is more expensive (roughly double the price) than the other downpipes?

Also, I couldn't find any info on whether or not it will work on the N20 228i conv (F23). Any assistance with that information would be greatly appreciated.
Correct, higher quality cats cost more.

the N20 downpipe will fit your F23 N20
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      05-01-2020, 02:33 AM   #10
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Quote:
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Correct, higher quality cats cost more.

the N20 downpipe will fit your F23 N20
Thank you for your assistance! If it's alright with you, I'd like to send you a pm.
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      05-02-2020, 10:47 AM   #11
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Quote:
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Thank you for your assistance! If it's alright with you, I'd like to send you a pm.
Of course
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