Have a charge on my card for the exhaust, but nothing in the mail and no contact from Stromung. Called them several times, haven't gotten a response. Anyone else still waiting?
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318iS Stromung Catback Group Buy 2015
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Originally posted by BraveUlysses View Post^man i thought I was crazy for being the only person with leaking issues (at the cat/muffler connection) from the group buy last fall but it's good to see it's not just me. I'm going to pick one of those donuts up and get it in the car in a week or two and see if that helps.
The Bosal is what's listed at AutoZone and Amazon for the 318is, so I'm guessing it will work on the stock system, but I have no clue or way to verify.
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OCell, just gonna chime in here and tell you there is NO donut there. The outlet of the cat (if it's still original) is bulbed which fits well with the flare from the inlet of the Stromung. When I installed mine I used factory parts and things fit with no issues. If both ends are flared then your stuff isn't all OE, and yes a donut would be in order. FYI the red car in the OP's photos is of my install.
You are misleading yourself by looking at another exhaust that is for the M20 dual pipe set up. Both pipes in that case require donuts, and even then one is different from the other to take up the manufacturing tolerances between the two pipes. Your single pipe M42 has no such issues so don't get distracted.
Originally posted by Ocell View PostThe Bosal 256-737 I ordered isn't working, at least not on the Magnaflow system. I've got serious leaks. I've e-mailed Magnaflow asking what gasket I'm supposed to be using with their system.
The Bosal is what's listed at AutoZone and Amazon for the 318is, so I'm guessing it will work on the stock system, but I have no clue or way to verify.Last edited by WhatWentWong; 06-09-2015, 01:04 PM.
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Originally posted by WhatWentWong View PostOCell, just gonna chime in here and tell you there is NO donut there. The outlet of the cat (if it's still original) is bulbed which fits well with the flare from the inlet of the Stromung. When I installed mine I used factory parts and things fit with no issues. If both ends are flared then your stuff isn't all OE, and yes a donut would be in order. FYI the red car in the OP's photos is of my install.
You are misleading yourself by looking at another exhaust that is for the M20 dual pipe set up. Both pipes in that case require donuts, and even then one is different from the other to take up the manufacturing tolerances between the two pipes. Your single pipe M42 has no such issues so don't get distracted.
http://www.r3vlimited.com/board/show...5&postcount=77
Thanks for the input. I'm not dealing with a factory system, unfortunately. I'm dealing with a Mangaflow "direct-fit" cat system. I've e-mailed them asking what gasket they expect to work with their system but I haven't heard back yet. I originally bolted it up without any gasket and I'm pretty sure there were massive leaks like I have now.
Scott at Stromung also confirmed the need for a gasket when I e-mailed him a photo.
I don't follow what you're saying about the M20 system, though. I don't remember mentioning a M20 system.
I'm so close to just welding the damn thing.
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Originally posted by Ocell View Post
I don't follow what you're saying about the M20 system, though. I don't remember mentioning a M20 system.
I'm so close to just welding the damn thing.
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I have one for sale from the original group buy a few years ago PM me if anyone is intrested. New in the wrapper $429.00 plus paypal and shipping or local pickup would be great!FEEDBACK:
http://www.r3vlimited.com/board/showthread.php?t=316212
BMWCCA #398608
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