uuc system u

bradley1 · Thu, Aug-05-2010, 12:53:44 AM

So im waiting for my catback to arrive for install this weekend for my 99 coupe and im trying to get a parts list together. Does anyone have experience with the system u? Any hurdles? seems like a pretty simple bolt on but from my experience with exhausts it can get interesting.

wondering about hangers, gaskets etc... help is appreciated

BleedsBlue · Thu, Aug-05-2010, 01:28:50 AM

Installing a cat-back is an absolute walk in the park.... in theory.

It's an easy operation, but the bolts under there are bound to be rusted and possibly seized. I broke a bolt when I did mine, and it almost took my eye.

You'll love the System U, I sure did.

das borgen · Thu, Aug-05-2010, 01:35:21 AM

it s always prudent to wear safety glasses

my advice, spray down the bolts with s a rust penetrant

but spare bolts and nuts as backups just in case.. they are 8mm bolts and need to be 55mm long at least IIRC... just did this 1 month ago

fiveightandten · Thu, Aug-05-2010, 03:41:40 AM

If you've never touched the exhaust, just get all new bolts and gaskets for anything you'll be disturbing. It'll ensure you won't have any leaks and make things easier to take apart in the future.

Put high temp copper based anti-sieze on any nuts and bolts so you can take them apart easily in the future.

You'll likely need new hangers as well. Now is the time to replace them. Note that there are two sets of rear exhaust hanger studs on the underside of the car on the driver's side. I believe the System U requires the hanger there to be mounted to the one that's opposite of how the stock catback mounts, though don't quote me on that.

ChasenIS · Thu, Aug-05-2010, 04:44:21 AM

WD40, patience, arm strength, and a good lift.

Buy all new gaskets, bolts and hangars. On my 98 it needed them.

bradley1 · Thu, Aug-05-2010, 04:57:03 AM

nice. just what i thought just needed to hear it part numbers please?

BleedsBlue · Thu, Aug-05-2010, 06:04:18 AM

Psh. You gotta do your own groundwork like the rest of us. RealOEM.com for part numbers

das borgen · Thu, Aug-05-2010, 12:50:12 PM

Quote:

Originally Posted by ChasenIS

WD40, patience, arm strength, and a good lift.

Buy all new gaskets, bolts and hangars. On my 98 it needed them.

WD 40 is not a rust penetrant...it s simply a lubricant...it won t help at all

cstern · Thu, Aug-05-2010, 12:54:40 PM

Get 2 of each of these.

And I think 1 of each of these.

Then buy a few more things to get your total up to $50 for free shipping.

I hope those are the right gaskets. There was a thread by numik(?) awhile ago about having problems getting the right ones from a dealer. Something to do with the part number.

You can find stainless steel nuts and bolts at fastenal or the dealer. I couldn't find long enough SS bolts at Ace hardware.

das borgen · Thu, Aug-05-2010, 12:55:48 PM

for a REAL RUST PENETRANT: you want Kano Kroil or better yet a 50/50 mix of Acetone/ATF in a cheap spray bottle

be sure you get the 48mm gasket rings... i

they are (1 of each)
18111723720
and
18111719446

exhaust hangers
18201401797 (need 2 of these)

nuts and bolts and washers from hardware store

in order to get your order to 50 bucks, might I suggest the cowl cover plastic piece at the base of the windshield? at 125k miles, the one on my car was grey and tired and crumbling. I got a new and boy does it make my car look young and fresh.... it's just 25 bucks too from autohausaz

Thu, Aug-05-2010, 12:53:44 AM	#1
bradley1 Registered User Join Date: Aug 2009 Posts: 110 Reputation: 0	uuc system u So im waiting for my catback to arrive for install this weekend for my 99 coupe and im trying to get a parts list together. Does anyone have experience with the system u? Any hurdles? seems like a pretty simple bolt on but from my experience with exhausts it can get interesting. wondering about hangers, gaskets etc... help is appreciated

Thu, Aug-05-2010, 01:35:21 AM	#3
das borgen Off-Topic King Join Date: Oct 2009 Age: 27 Posts: 6,505 In the garage: '00 Ducati 848 Evo '97 BMW M3 Reputation: 0 Location: Columbus, OH	it s always prudent to wear safety glasses my advice, spray down the bolts with s a rust penetrant but spare bolts and nuts as backups just in case.. they are 8mm bolts and need to be 55mm long at least IIRC... just did this 1 month ago __________________ Never run out of traction, real estate, and ideas at the same time. Last edited by das borgen; Thu, Aug-05-2010 at 01:40:49 AM.

Thu, Aug-05-2010, 03:41:40 AM	#4
fiveightandten He'll save children, but not the British children... Join Date: Sep 2006 Posts: 7,723 In the garage: '03 BMW 330CI '02 SUBARU WRX '98 BMW M3 Reputation: 0 Location: Connecticut	If you've never touched the exhaust, just get all new bolts and gaskets for anything you'll be disturbing. It'll ensure you won't have any leaks and make things easier to take apart in the future. Put high temp copper based anti-sieze on any nuts and bolts so you can take them apart easily in the future. You'll likely need new hangers as well. Now is the time to replace them. Note that there are two sets of rear exhaust hanger studs on the underside of the car on the driver's side. I believe the System U requires the hanger there to be mounted to the one that's opposite of how the stock catback mounts, though don't quote me on that. __________________ -Nick

Thu, Aug-05-2010, 12:55:48 PM	#10
das borgen Off-Topic King Join Date: Oct 2009 Age: 27 Posts: 6,505 In the garage: '00 Ducati 848 Evo '97 BMW M3 Reputation: 0 Location: Columbus, OH	for a *REAL* RUST PENETRANT: you want Kano Kroil or better yet a 50/50 mix of Acetone/ATF in a cheap spray bottle be sure you get the 48mm gasket rings... i they are (1 of each) 18111723720 and 18111719446 exhaust hangers 18201401797 (need 2 of these) nuts and bolts and washers from hardware store in order to get your order to 50 bucks, might I suggest the cowl cover plastic piece at the base of the windshield? at 125k miles, the one on my car was grey and tired and crumbling. I got a new and boy does it make my car look young and fresh.... it's just 25 bucks too from autohausaz __________________ Never run out of traction, real estate, and ideas at the same time. Last edited by das borgen; Thu, Aug-05-2010 at 01:08:09 PM.

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Thu, Aug-05-2010, 04:57:03 AM	#6
bradley1 Registered User Join Date: Aug 2009 Posts: 110 Reputation: 0	nice. just what i thought just needed to hear it part numbers please?

Thu, Aug-05-2010, 12:54:40 PM	#9
cstern Registered User Join Date: Nov 2007 Posts: 670 Reputation: 0	Get 2 of each of these. And I think 1 of each of these. Then buy a few more things to get your total up to $50 for free shipping. I hope those are the right gaskets. There was a thread by numik(?) awhile ago about having problems getting the right ones from a dealer. Something to do with the part number. You can find stainless steel nuts and bolts at fastenal or the dealer. I couldn't find long enough SS bolts at Ace hardware.