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3-Series (E46, E90) Chat relating to the BMW 3-Series from 1999 to Current. Models include: BMW 316i, BMW 318i, BMW 318Ci, BMW 320i, BMW 323i, BMW 325i, BMW 330i, BMW 328 Ci, BMW 328i, BMW 325i/xi, BMW 330Ci, BMW 320d, BMW 330d, BMW 335d.

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Old 02-10-2005, 01:10 AM   #1 (permalink)
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I got myself a 2002 330i.

Wow! I did not know that driving could be this pleasurable. I don't think I will ever look at cars the same again.


I would like to get some more horsepower out of my 330i. What are the easiest and most effective first-step modifications to getting horsepower gains?

Maybe a microchip? (What brand, where do I get it, and how do I put it in?)

Other ways? (Exhaust? Intake? Injectors? Other?)


Will my fuel efficiency MPG drop? (I have been told it will NOT drop with most of these mods)


Thanks!
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Old 02-10-2005, 07:25 PM   #2 (permalink)
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A 330i is at what?.... 225hp? and you want more eh?

Shark Injector (not a chip but a program downloaded into your car's computer)
cost ~ $400 +/-
gains: minute boast in HP and gas mileage, so they claim

Used in conjunction with an intake gains could be see in the +8hp and +10lbft range. Not alot, mind you but I assume noticable.... one site where you could find a shark injector and the matching (made for?) intake: M3motorwerks. Of course there are other sites that may sell them cheaper.

Then there are the pullies ~$260. They help to make it easier for the engine to turn by underdriving the orignial pullies. Don't know about actual gains.

Exhausts.... I believe AA exhuasts yeiled one of the higher gains from most manufactures. There's also UCC, highly expensive, and more of sound than performance.
Test
AA Tunning

There was a link that I can't find right now than had a better test that the ones above and also had sound clips. It's posted somewhere on this forum.

If you really want to get into the upgrading, you could get headers and cams. If you got the money, go forced induction, but by that point, you would've spent just under $10k (FI kit, cams, headers, exhuast ect.) and shortened the engine's life quite a bit. Now, I'm not a mechanic, so don't assume that what I write is 100% accurate. There are others in here that know alot more about that topic than I do.

Check out that AA site for prices on FI kits, just to get an idea.

If you got a manual, you could go with a short shift kit and a rear differental (which would lower your MPG). So now your really up there in the $$$$$ when all added together.

I hope this info is good enough for a starting point,

Dough

EDIT, another good site would be Turner Motorsports
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Old 02-10-2005, 07:26 PM   #3 (permalink)
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you da man, dough.

also, check shark injectors and software by jim conforti. good stuff.
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Old 02-10-2005, 07:31 PM   #4 (permalink)
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Quote:
Originally posted by peterkulesza@Feb 10 2005, 08:26 PM
you da man, dough.

also, check shark injectors and software by jim conforti. good stuff.
[snapback]289490[/snapback]
I thought I mentioned that used , oh well.

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Old 02-12-2005, 02:15 AM   #5 (permalink)
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Thanks for the advice!

Sounds like I might just have to save up for the new 06 330i with 258hp?


I want the most performance and speed, but I have to have 4 doors, otherwise the M3 would be next.

In the mean time, the shark injector and intake package seems like it might add just enough "oomph" to make me happier.
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