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| 10-17-2014, 05:01 PM | #1 |
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Private First Class
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Exhaust Dent (question)
Hi, I bought a used 2013, 7000miles, 135i N55 DCT 2 weeks ago.
Today, looking beneath the car I saw 2 "small" dents on the exhaust (images below). Do you think this could have any impact on performance? Thanks     |
| 10-17-2014, 05:05 PM | #2 |
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not sure about the dent on top but the one on the bottom is like that from the factory. I wouldnt worry at all about it.
most likely came with the 2 dents from the factory. The exahust is pretty free flowing even with those dents. also you will notice another dent where it gets close to the suspension/control arm. its just the way they bend the pipe. |
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| 10-17-2014, 05:05 PM | #3 |
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Major
 
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That's normal.
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| 10-17-2014, 05:18 PM | #4 |
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Major General
 
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I have dents like that on my Performance exhaust and when my installer opened the box, he brought it to my attention. Then he looked at the stock exhaust on my car and saw the same dents, so it's perfectly normal.
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| 10-17-2014, 05:19 PM | #5 |
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Yes, these dents are normal. Its the same on the Performance Exhaust as well.
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https://www.instagram.com/the_driving_gallery/ '12 135i DCT Le Mans Blue * M Sport Package * BMW Performance Exhaust * PPK 1 * ST Coilovers * Cobb Sway Bars * Dinan Camber Plates * VMR V705 Wheels * Michelin PSS
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| 10-17-2014, 06:01 PM | #6 |
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Drives: BMW 135is | #341/586
Join Date: Jun 2013
Location: New York
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Perfectly normal. It is how BMW uses super German engineering to give the exhaust just enough back pressure.
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2013 BMW 135is Coupe | Dinan Stage 3 | M3 Subframe Bushings | Dinan Monoball Joints | Dinan Toe Links | 1M Strut Bar | MPS AS/3 - VMR 710's 18x8.5 ET45 / 18x9.5 ET50 | MPSS - BMW 313's 18x7.5 / 18x8.5 | Min Grey, Savanna | Prem, Tech | DCT | Beast #341/586 |
2021 BMW X7 M50i | Alpine White | Children Hauler  |
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