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Author	Topic: List any mods you have done to increase power and or MPG.	Post a Reply Back to Topics

BMW330CiSLC Veteran Author Salt Lake City Posts:450 Points:92,135 Joined:Nov 2007	Message Posted: Dec 27, 2007 7:01:39 AM Ignore BMW330CiSLC Report Abuse I have not done much my self other then the K&N air filter when I first bought the car. But I am in debate with my self of buying a supercharger in the next year or two.

BMW330CiSLC

Veteran Author
Salt Lake City

Posts:450
Points:92,135
Joined:Nov 2007

Message Posted: Dec 27, 2007 7:01:39 AM

Ignore BMW330CiSLC Report Abuse

I have not done much my self other then the K&N air filter when I first bought the car. But I am in debate with my self of buying a supercharger in the next year or two.

REPLIES (newest first)Ignore Short Messages

lyanMI Veteran Author Detroit Posts:345 Points:233,245 Joined:May 2012	Message Posted: Apr 1, 2013 10:54:27 AM Ignore lyanMI Report Abuse I haven't.
bonbNJ All-Star Author New Jersey Posts:979 Points:326,940 Joined:Apr 2011	Message Posted: Jun 10, 2012 2:57:38 AM Ignore bonbNJ Report Abuse its bs
PhilnTX All-Star Author Dallas Posts:665 Points:457,185 Joined:Sep 2011	Message Posted: Jan 31, 2012 2:23:49 PM Ignore PhilnTX Report Abuse Removed the engine/trans and installed an LS2/T56.
dctazz Rookie Author Illinois Posts:9 Points:572,150 Joined:Nov 2010	Message Posted: Jan 24, 2012 2:54:20 PM Ignore dctazz Report Abuse Running a fresh air intake system is one way to improve performance and mileage. But clean the filter more than it's stated in the owners manual. Also a set of BOSCH Platinum +4 spark plugs also make a big difference. [Edited by: dctazz at 1/24/2012 6:02:50 PM EST]
BikeRider Sophomore Author Toronto Posts:196 Points:104,270 Joined:Aug 2003	Message Posted: Jun 5, 2011 7:55:08 AM Ignore BikeRider Report Abuse Will a K and N air filter help my X5 diesel. Not that I drive it that hard but the twin turbos do give it a nice kick!
GDJ Rookie Author Edmonton Posts:80 Points:24,560 Joined:Mar 2009	Message Posted: Jan 13, 2011 7:37:25 PM Ignore GDJ Report Abuse Sidegapped spark plugs, got rid of the front snorkel from the airbox, played with the MAF sensor. That's about it so far. Cold winter temps have hampered my experimenting thus far.
M3clubracer Rookie Author Indianapolis Posts:11 Points:238,875 Joined:May 2008	Message Posted: Jan 4, 2011 4:44:46 PM Ignore M3clubracer Report Abuse Headers, exhaust, K&N or intake, chip, synthetic in entire drive train, coast as much as possible, and try not to use the brakes.
snofog All-Star Author Seattle Posts:623 Points:92,655 Joined:Jan 2010	Message Posted: Feb 4, 2010 7:33:57 AM Ignore snofog Report Abuse Nothing yet.
i4runner Veteran Author Orlando Posts:278 Points:59,910 Joined:Oct 2009	Message Posted: Nov 2, 2009 11:12:55 AM Ignore i4runner Report Abuse Tires that are better for highway driving, free flow air filter, Dinan engine and transmission rewrite.
defranfam Rookie Author Phoenix Posts:6 Points:194,770 Joined:Jun 2009	Message Posted: Jul 17, 2009 2:13:21 PM Ignore defranfam Report Abuse smaller tires and a K&N air filter
prs_s14 Rookie Author Louisville Posts:33 Points:187,970 Joined:Oct 2008	Message Posted: Oct 20, 2008 7:25:29 AM Ignore prs_s14 Report Abuse The K&N will help with response and MPG.
rhinorover Champion Author Edmonton Posts:1,860 Points:329,150 Joined:May 2004	Message Posted: Jun 7, 2008 7:37:55 PM Ignore rhinorover Report Abuse I'm guessing that your fuel mileage will take a hit with a supercharger. Can you not get your throttle remapped or your chip flashed?
JettaMan64 Champion Author Las Vegas Posts:3,025 Points:391,205 Joined:Jun 2005	Message Posted: Jun 3, 2008 8:28:22 PM Ignore JettaMan64 Report Abuse +1 on the K & N filters!
NCSigma Champion Author Charlotte Posts:1,130 Points:86,945 Joined:Sep 2003	Message Posted: Jun 3, 2008 11:21:04 AM Ignore NCSigma Report Abuse I swear by the K&N filter. I used one on my old Durango and now in my 530i. Both got better mileage.
mcneece Rookie Author Jackson Posts:60 Points:22,830 Joined:May 2008	Message Posted: Jun 3, 2008 8:41:27 AM Ignore mcneece Report Abuse i noticed an every so slight (and it still may be my imagination) increase by putting some decent gear oil in my diff. i'm running redline 75w90.