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      08-30-2011, 09:51 PM   #1
dibxna
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rear bumper oddity

hey guys,

just curious if anyone has seen the rear bumper sag downward on the oem bumper w/out diffuser between the exhaust tips.

I had exhaust installed over the weekend and when it was finished up there was no sagging problem, however, this morning as i was getting out to the car i noticed it looked like it was sagging. To best describe it, think if you have a piece of plastic and squeeze on each side it pushes the piece downward in a ͜͜
type of shape.

wondering if maybe the exhaust settling in has put more pressure on the mounting brackets that are right behind the bumper or if the heat from the exhaust is softening the body panel so it appears to sag?

anyone with any thoughts?
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      08-30-2011, 09:57 PM   #2
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I've just recently noticed this on mine as well only mine does it more to the side towards one tip. Looks kind of bad and unsure how to fix. Did mess with the mounting point for the bumper and didn't help much.
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      08-30-2011, 09:59 PM   #3
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Quote:
Originally Posted by chriszeh View Post
I've just recently noticed this on mine as well only mine does it more to the side towards one tip. Looks kind of bad and unsure how to fix. Did mess with the mounting point for the bumper and didn't help much.
hmm. hopefully someone will help us out here! i think mine is shifted slightly to the right side. the car is in the garage already but tomorrow ill snap a quick photo and put it up for comparison.
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      08-30-2011, 10:07 PM   #4
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I was thinking I would let the dealer fix it next time I'm in under warranty. I was thinking maybe I did it moving the exhaust around on a recent install of an xpipe.
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      08-30-2011, 10:29 PM   #5
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Quote:
Originally Posted by chriszeh View Post
I was thinking I would let the dealer fix it next time I'm in under warranty. I was thinking maybe I did it moving the exhaust around on a recent install of an xpipe.
do you think they will? my worry is that they will say it was caused by the install (even if it wasnt) and not fix it under warranty
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      08-30-2011, 11:09 PM   #6
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Probably because I did the center section not the axle back which is still stock. I will just say I didn't even touch that how could it be related.
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      08-30-2011, 11:14 PM   #7
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gotcha. i did axle back so theyd be more likely to tell me sorry. but let me know what happens if nobody puts a fix up here....
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      08-30-2011, 11:22 PM   #8
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I think if we monkey around with the lower brackets enough should be able to fix it on our own. Or we could use this as an excuse to get a diffuser!
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      08-30-2011, 11:27 PM   #9
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you guys got a pic of what your talking about? i have exhaust and x-pipe and haven't noticed this
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      08-30-2011, 11:36 PM   #10
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Quote:
Originally Posted by chriszeh View Post
I think if we monkey around with the lower brackets enough should be able to fix it on our own. Or we could use this as an excuse to get a diffuser!
very first thing i did upon noticing was go online and look at getting a challenge diffuser paint matched. but my worry is that it would push the diffuser off the bumper if its a strong enough pressure!

i think this weekend ill be doing the message around with parts things to see if it helps anything.




@1sikbmr yeah i can take a pic but will do it tomorrow, car is in the garage already and i dont have a good light out there at present. ill get one and post it up tomorrow
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      08-30-2011, 11:39 PM   #11
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Quote:
Originally Posted by 4G63 View Post
whats with people midifying their cars and then wanting things fixed under warranty? its real easy, was the sag there before the new exhaust? if not, then you have no claim. man-up to it being something you may have done.
if you read my original post you would have realized that i noted already it was NOT like this after the install was complete initially. it now has become that way.

whats with people feeling self righteous on forums these days? if you dont have something worthwhile to contribute, move along you little wanker.

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*09' E90 M3 :: Le Mans Blue w/ silver novillo :: DCT*
*66' 427 Big Block Corvette :: Maroon :: Straight Piped*
*56' ford f-100 truck :: NSX blue :: lowered :: custom interior :: custom audio :: colorado custom wheels*
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      08-31-2011, 12:04 AM   #12
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just went and laid under the car and looked for a few things - i think the exhaust having settled in has helped a few of the bolts to loosen allowing movement of the rear mounting bracket for the bumper. i moved a few things around and tightened the bolts as best i could without the car being on a jack and it seemed to help fix the "sag".

i will wait and see if it shifts again tomorrow and if it does ill get it up on a jack and see if i can tighten things down more tightly.
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*09' E90 M3 :: Le Mans Blue w/ silver novillo :: DCT*
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      08-31-2011, 12:34 AM   #13
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Quote:
Originally Posted by dibxna View Post
if you read my original post you would have realized that i noted already it was NOT like this after the install was complete initially. it now has become that way.

whats with people feeling self righteous on forums these days? if you dont have something worthwhile to contribute, move along you little wanker.

second that hulk
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