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Go Back   E46Fanatics > Tuning & Tech > Driveline, Engine & DME Tuning

Driveline, Engine & DME Tuning
Talk about driveline improvements, NA tuning and DME tuning your E46 BMW here. This includes diffs, intakes, exhausts, chips, software and OBD tuning.

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Old 04-07-2013, 10:25 AM   #1
mason01e46
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Join Date: Mar 2013
Location: georgetown
Posts: 10
My Ride: 2001 BMW 325ci e46
Horsepower

I'm pretty new to bmw world you could say. I have a 2001 bmw 325ci with an automatic transmission. A couple body mods including a coilover kit but nothing major. I'm just looking for some not too expensive "under the hood" mods that could be done to get some more horsepower out of my car because as we all know, stock, this is car isn't quite the "ass hauler"
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Old 04-07-2013, 10:40 AM   #2
diM3tri
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Join Date: Apr 2012
Location: Fairfield CT
Posts: 607
My Ride: 330ci + stg2 Scoobie
E46's aren't made for pure speed. The best thing you can do if you want more speed is replace and fix all the little things bogging your car down. Vanos seals, ICV, DISA, cooling system overhaul, all that good stuff. After you're done then you could get headers or an exhaust or a tune but for the amount of money required you will see very little gains. Especially with the slushbox auto. Forced induction would be the only way to dramatically increase speed but you have an auto so the transmission may not be able to handle that amount of torque.. If I were you I'd save your money and get an m3 if you're looking for more speed.
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Old 04-07-2013, 10:57 AM   #3
mason01e46
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Join Date: Mar 2013
Location: georgetown
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My Ride: 2001 BMW 325ci e46
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Originally Posted by diM3tri View Post
E46's aren't made for pure speed. The best thing you can do if you want more speed is replace and fix all the little things bogging your car down. Vanos seals, ICV, DISA, cooling system overhaul, all that good stuff. After you're done then you could get headers or an exhaust or a tune but for the amount of money required you will see very little gains. Especially with the slushbox auto. Forced induction would be the only way to dramatically increase speed but you have an auto so the transmission may not be able to handle that amount of torque.. If I were you I'd save your money and get an m3 if you're looking for more speed.
Ya my next car is going to be a 2004 m3. I just have to drive this one for 2 years first and it's boring me to death
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Old 04-07-2013, 10:08 PM   #4
lszlszx
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My Ride: 328i, XC70
Sell your car and buy a 330i with stick, costs a lot less than an M3, gets you 30+ mpg freeway and way faster than your current one.
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Last edited by lszlszx; 04-07-2013 at 10:10 PM.
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Old 04-07-2013, 10:35 PM   #5
Dirty Mike
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Location: Alabama
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Originally Posted by lszlszx View Post
Sell your car and buy a 330i with stick, costs a lot less than an M3, gets you 30+ mpg freeway and way faster than your current one.
Idk what 330 stick you have but more like 20+mpg
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Old 04-08-2013, 06:48 PM   #6
lszlszx
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I have a 328i. My point is, with the 330i you get about the same mpg freeway
and you have 40 more hp.
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Old 04-11-2013, 01:12 AM   #7
lejeunebimmer
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Join Date: Oct 2009
Location: Oakdale, MN
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My Ride: 02' M3 SMG, 02' 330i
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Originally Posted by Dirty Mike View Post
Idk what 330 stick you have but more like 20+mpg
IDK how you drive, but I drive like an a$$hole in my 330 with it being nowhere near stock and I get 30-32mpg hwy (Highway only) city I don't even want to talk about.
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M3 - Not enough room to list
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Old 04-11-2013, 02:52 AM   #8
zander271
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Originally Posted by lejeunebimmer View Post
IDK how you drive, but I drive like an a$$hole in my 330 with it being nowhere near stock and I get 30-32mpg hwy (Highway only) city I don't even want to talk about.
I get the same on the highway and 23-24 in the city.
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Old 04-11-2013, 03:11 AM   #9
lejeunebimmer
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My Ride: 02' M3 SMG, 02' 330i
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Originally Posted by zander271 View Post
I get the same on the highway and 23-24 in the city.
I get like 17 straight city 23-24 mixed and about 2.5 on the track
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330i - AA Tuned, Headers, UUC Stage I LW FW, e36 M3 Clutch, UUC SS Clutch line, BMW Performance Intake, Evo Sport Pulleys, BMW Performance Cross-Drilled Rotors, Hawk HPS, BW SS Brake Lines, BW Solid Guide Bushings, BMW Performance CF Strut Brace, H&R Sways, H&R Sport Springs, Bilstein Sport Shocks, Powerflex Bushings, LED Tails, Clear Sides/Turns, Black Grill, Mtech 2, CF Splitters


M3 - Not enough room to list
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Old 04-11-2013, 03:31 AM   #10
bernie21614
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My Ride: 01 330i
Same here I get 17 with straight city driving and lately I've been doing allot of city driving which sucks. So back to the power thread thé best power upgrade would be some Ebay headers, good power and good price all in one package.
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