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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > NA Engine (non-turbo) / Drivetrain / Exhaust Modifications > Performance parts for my 2008 BMW 328 xi



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      11-28-2012, 07:45 PM   #1
geyer25
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Performance parts for my 2008 BMW 328 xi

I'm new to the forum and a BMW and was just wondering what some mods that work good are. I already have an AFE intake on the way, I have a 2008 BMW 328 xi sedan, automatic........first auto car in like 6 years. Wanted luxury so traded my 2008 Dodge Caliber SRT-4 with big turbo setup and 480 whp so quite a change. Any suggestions and help would be appreciated
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      11-28-2012, 08:58 PM   #2
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Nobody has any info for me.......??
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      11-28-2012, 09:07 PM   #3
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It's just been an hour since this is up and the NA section is sometimes dead. So if you need info fast you should just SEARCH it. But anyways I'll tell you now everything you can do:

-High flow muffler
-Catless headers
-You got an AFE so that won't help much honestly because you have a NA engine, what you should have done was gotten a Euro Box intake for N52 or did a simple K&N filter drop in.
-Air scoops
-After all the performance mods you should get an AA tune to tie it all together
-Also knock some weight off your car
-Tires + wheels
-Coilovers, don't get springs because stock shocks won't hold it up too long.
-Sway bars, strut bars, etc.

That's almost all you can do to these cars, not much you can do that doesn't require lots of $. Now if you had a 335 those become monsters after a few modding.
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      11-28-2012, 09:13 PM   #4
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Thank you dude! Good info, AA tune?
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      11-29-2012, 12:24 AM   #5
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      11-29-2012, 01:27 AM   #6
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Quote:
Originally Posted by geyer25 View Post
Thank you dude! Good info, AA tune?
Active Autowerks, its the best tune for our cars. Do some research on it, squeezes out a few more hp along with better throttle response but make sure if you're getting headers get the tune AFTER you get the headers installed so you can get the best out of the mods.

p.s when you want to reply to a post hit the "Quote" button on the bottom right of a particular post you want to reply to so it sends a Notification to me or anyone else who's commented on your Topic if you have questions or want to reply. If you don't theres a good chance I don't see your reply and won't respond lol lucky for you I just clicked on this topic again to check up on it.
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      11-29-2012, 08:23 AM   #7
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Quote:
Originally Posted by Amini77
Quote:
Originally Posted by geyer25 View Post
Thank you dude! Good info, AA tune?
Active Autowerks, its the best tune for our cars. Do some research on it, squeezes out a few more hp along with better throttle response but make sure if you're getting headers get the tune AFTER you get the headers installed so you can get the best out of the mods.

p.s when you want to reply to a post hit the "Quote" button on the bottom right of a particular post you want to reply to so it sends a Notification to me or anyone else who's commented on your Topic if you have questions or want to reply. If you don't theres a good chance I don't see your reply and won't respond lol lucky for you I just clicked on this topic again to check up on it.
Okay thanks
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      11-29-2012, 09:40 AM   #8
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Quote:
Originally Posted by Amini77 View Post
It's just been an hour since this is up and the NA section is sometimes dead. So if you need info fast you should just SEARCH it. But anyways I'll tell you now everything you can do:

-High flow muffler
-Catless headers
-You got an AFE so that won't help much honestly because you have a NA engine, what you should have done was gotten a Euro Box intake for N52 or did a simple K&N filter drop in.
-Air scoops
-After all the performance mods you should get an AA tune to tie it all together
-Also knock some weight off your car
-Tires + wheels
-Coilovers, don't get springs because stock shocks won't hold it up too long.
-Sway bars, strut bars, etc.

That's almost all you can do to these cars, not much you can do that doesn't require lots of $. Now if you had a 335 those become monsters after a few modding.


THIS

plus ditch the run flats... you will save 10-13lbs from each wheel. If you dont get a muffler just delete it as a whole....... that will save 35lb. and with the 2nd cats + resonator its not bad, exhaust note wise/sound.


theres a thread here where a guy made is US airbox into a Euro box... basically you put a cone type filter in instead of the flat one that the US uses.

last, the 3 stage intake manifold from a 2006 330i of 530i.

The manifold, AA tune, headers are the big power gains... 10-15rwhp each.

the intake, muffler are prolly 4-7rwhp gains. the scoups only help once your doing 60mph +
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      11-29-2012, 11:16 AM   #9
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What's your budget?

There's a sticky thread with some info that might help.
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      11-29-2012, 03:32 PM   #10
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Quote:
Originally Posted by Rival View Post
THIS

plus ditch the run flats... you will save 10-13lbs from each wheel. If you dont get a muffler just delete it as a whole....... that will save 35lb. and with the 2nd cats + resonator its not bad, exhaust note wise/sound.


theres a thread here where a guy made is US airbox into a Euro box... basically you put a cone type filter in instead of the flat one that the US uses.

last, the 3 stage intake manifold from a 2006 330i of 530i.

The manifold, AA tune, headers are the big power gains... 10-15rwhp each.

the intake, muffler are prolly 4-7rwhp gains. the scoups only help once your doing 60mph +
This DIY:
http://www.e90post.com/forums/showthread.php?t=626376
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      11-29-2012, 04:09 PM   #11
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I should have done that intake option but I work at a Dodge dealership and financed an AFE intake in the deal for pretty cheap. What mod should come after intake? I'm very new to BMW.....
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      11-29-2012, 05:41 PM   #12
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AA tune or 3 stg intake manifold. or both....


sorry to break it to ya.... all ive heard about that afe intake is it screams up top and is a dog down low.

BMW PE exahaust, AA exhaust, etc etc. remus... whatever you pick the gains wont be as much as the intake mani / tune.
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      11-29-2012, 07:04 PM   #13
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Check to see if you have an N51 engine. I'm not sure if the XI models came with it, but it's the SULEV version of the N52. It'll have some differences. Among other things, it includes the 3 stage intake manifold.

Just open your hood and check the emissions sticker. ULEV will be the N52 and SULEV will have the N51.
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