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E46 Xi Forum
The E46 XI was produced from 01-05 in sedan and touring body styles. Powered by either a 2.5L inline 6 in the 325xi or a 3.0L inline 6 330xi. Discuss all thing about BMW AWD E46 'Xi' here.

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Old 03-02-2010, 10:05 PM   #1
OrisuE46
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Suspension Question: Xi vs I

Just curious if anyone knows the difference between a 325xi and 325i when it comes to modding the suspension. i was told you could easily mod 325i coilover to fit an XI...seems like they cant be that different. but i dont know much about cars so i thought i'd ask the forum!

has anyone retrofit coils to fit an XI??

TIA
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Old 03-02-2010, 10:37 PM   #2
xi_ter
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xi axles, boots and CV joints can be stressed if dropped too much. I have dropped mine about 1.5 inches by installing an Eibach Pro Kit and replacing the spring pads with the thinnest available. The back pad was 15mm and I replaced it with a 5mm pad. Then get an alignment annually, a good tech will tell you if there are any suspension components that need replacement. So far no problems as a result of the drop.
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Old 03-02-2010, 11:22 PM   #3
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Old 03-03-2010, 01:21 AM   #4
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just get xi specific coilovers...
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Old 03-03-2010, 05:15 PM   #5
OrisuE46
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Quote:
Originally Posted by T330 View Post
just get xi specific coilovers...
that is my plan. i was just wondering what makes the coilovers different. like what would possibly happen "if" i put normal 325i coils on??
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Old 03-03-2010, 05:17 PM   #6
OrisuE46
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Originally Posted by xi_ter View Post
xi axles, boots and CV joints can be stressed if dropped too much. I have dropped mine about 1.5 inches by installing an Eibach Pro Kit and replacing the spring pads with the thinnest available. The back pad was 15mm and I replaced it with a 5mm pad. Then get an alignment annually, a good tech will tell you if there are any suspension components that need replacement. So far no problems as a result of the drop.
so do you have Xi specific coils? or did you just mod it to Xi specs?
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Old 03-03-2010, 05:19 PM   #7
grocerygttr
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maybe different spring rates to make up for the added weight.
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Old 03-03-2010, 08:08 PM   #8
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The rear springs & shocks would fit between XI and non-XI. The front struts may have a different mounting location for the sway bar endlinks, otherwise they would be swappable too. You can buy adjustable length endlinks though, so maybe that would solve it if there even is a difference. As far as differences in the actual springs & dampers, I would imagine they would be tuned for the added weight (220lbs) and thicker roll bars of the XI. Don't know how much of a difference that would make though.
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Old 03-03-2010, 10:32 PM   #9
xi_ter
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Originally Posted by OrisuE46 View Post
so do you have Xi specific coils? or did you just mod it to Xi specs?
I didn't buy coils-over since I didn't want to slam the car although I would like to have the ability to adjust for more winter clearance.
The Eibach Pro Kit sport springs had a different part number for an xi
325xi part number #: 2089.140
325i part number #: 2067.140
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Old 03-04-2010, 08:25 PM   #10
OrisuE46
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Originally Posted by mekaneck View Post
The rear springs & shocks would fit between XI and non-XI. The front struts may have a different mounting location for the sway bar endlinks, otherwise they would be swappable too. You can buy adjustable length endlinks though, so maybe that would solve it if there even is a difference. As far as differences in the actual springs & dampers, I would imagine they would be tuned for the added weight (220lbs) and thicker roll bars of the XI. Don't know how much of a difference that would make though.
thanks a lot that answered my question kind of
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Old 03-21-2010, 09:24 AM   #11
bmwauug
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Can you share how much a shop would chard to have the springs installed?



Quote:
Originally Posted by xi_ter View Post
I didn't buy coils-over since I didn't want to slam the car although I would like to have the ability to adjust for more winter clearance.
The Eibach Pro Kit sport springs had a different part number for an xi
325xi part number #: 2089.140
325i part number #: 2067.140
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Old 03-21-2010, 05:54 PM   #12
bmwauug
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Any pics?

Quote:
Originally Posted by xi_ter View Post
xi axles, boots and CV joints can be stressed if dropped too much. I have dropped mine about 1.5 inches by installing an Eibach Pro Kit and replacing the spring pads with the thinnest available. The back pad was 15mm and I replaced it with a 5mm pad. Then get an alignment annually, a good tech will tell you if there are any suspension components that need replacement. So far no problems as a result of the drop.
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Old 03-22-2010, 08:38 PM   #13
ZZen330
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Any pics?
^ what he said.
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Old 03-23-2010, 11:50 AM   #14
xi_ter
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This is a pic of the drop on winter wheels.
Gap in rear is 1 1/2 fingers. The Eibach Prokit plus pulling out the 15mm spring pad and using a 5mm spring pad gave a 1.9 inch drop.
Gap in front is 2 fingers. All from the Prokit. I didn't find any rough road spring pads in my front strut to remove.
Gaps are similar to OEM Sport suspension.
Approx a year on the stock Sachs xi shocks. Comfortable, sportier handling.
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Old 04-26-2010, 10:27 PM   #15
OrisuE46
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Quote:
Originally Posted by xi_ter View Post

This is a pic of the drop on winter wheels.
Gap in rear is 1 1/2 fingers. The Eibach Prokit plus pulling out the 15mm spring pad and using a 5mm spring pad gave a 1.9 inch drop.
Gap in front is 2 fingers. All from the Prokit. I didn't find any rough road spring pads in my front strut to remove.
Gaps are similar to OEM Sport suspension.
Approx a year on the stock Sachs xi shocks. Comfortable, sportier handling.
looks good.. not sure how it would look with rims...i want no gap. low as i can go. slamber lamps style.
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