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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Need n54 secondary cats



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      09-21-2013, 12:28 PM   #1
chris98m3
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Need n54 secondary cats

My shop gutted my cats so I want to get replacement cats. Where is the best place to get a replacement? Can I get the magnaflow ones?
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      09-21-2013, 07:38 PM   #2
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Primaries or secondaries?
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      09-21-2013, 08:05 PM   #3
chris98m3
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Quote:
Originally Posted by Xzach92X
Primaries or secondaries?
Secondary
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      09-21-2013, 08:41 PM   #4
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Yeah sorry didnt read the thread
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      09-21-2013, 10:35 PM   #5
chris98m3
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Anyone selling the cats?
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      09-21-2013, 10:52 PM   #6
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Megan Racing

You'll find a lot of CATS, but be careful as you're limited to space and if they are too long, you won't get them welded back into place.

Also, be careful who you have weld them in. Most shops are hacks at best with the MIG. I would find a shop that can TIG weld them. It will be more $, but you won't have a hack job.... V-Bands would be nice, but $$$ also. They're like $35 each and you need 4...
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      09-21-2013, 10:54 PM   #7
chris98m3
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Quote:
Originally Posted by Wedge1967
Megan Racing

You'll find a lot of CATS, but be careful as you're limited to space and if they are too long, you won't get them welded back into place.

Also, be careful who you have weld them in. Most shops are hacks at best with the MIG. I would find a shop that can TIG weld them. It will be more $, but you won't have a hack job.... V-Bands would be nice, but $$$ also. They're like $35 each and you need 4...
All I want is the 2 ones at the back
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      09-22-2013, 12:02 AM   #8
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i have a set in my garage. pm'd
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      10-01-2013, 01:25 PM   #9
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why??
just get Magnaflow HFC instead
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      10-02-2013, 02:49 PM   #10
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on my E92,my pre cata are empty, and i ve got bmw perfomance exhaust.

on 92 no intermediary silencious so i've already only stock cata secondary, but noise is really true present, what advice else you can i put to reduce a little the noise ??

sorry for my english l'm french
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      10-03-2013, 01:45 PM   #11
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I'm going to be cutting off mines... if you want them...
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      10-03-2013, 01:50 PM   #12
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Have you got picture of it??
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