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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 10-29-2009, 12:10 PM   #1
dips2
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Headers Headers Headers????

Where can i buy headers from???? I drive a 318CI 2004. I have already remapped my software to increase my BHP and will be changing my exhaust soon. I am taking delivery of my Simota Induction kit tomorrow.

I have some questions:

1) What do Headers do?
2) Cost???
3) Fuel economy? Decrease or Increase?
4) Installation??
5) Where can i buy some from??

Thanks in advance!
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Old 10-29-2009, 02:28 PM   #2
Bimmer Dude Xi
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Quote:
Originally Posted by dips2 View Post
Where can i buy headers from???? I drive a 318CI 2004. I have already remapped my software to increase my BHP and will be changing my exhaust soon. I am taking delivery of my Simota Induction kit tomorrow.

I have some questions:

1) What do Headers do?
2) Cost???
3) Fuel economy? Decrease or Increase?
4) Installation??
5) Where can i buy some from??

Thanks in advance!
1) What do Headers do?
Headers give you more power at top end but you lose bottom end torque.
Also will throw a CEL unless you have a O2 sim

2) Cost???
150 USD

3) Fuel economy? Decrease or Increase?
Not sure

4) Installation??
If you're mechanically good, not a tough job. On a Xi, the front axle has to be removed for clearance.

5) Where can i buy some from??
Ebay
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Old 10-29-2009, 04:04 PM   #3
Iceman00
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Quote:
Originally Posted by Bimmer Dude Xi View Post
1) What do Headers do?
Headers give you more power at top end but you lose bottom end torque.
Also will throw a CEL unless you have a O2 sim

2) Cost???
150 USD

3) Fuel economy? Decrease or Increase?
Not sure

4) Installation??
If you're mechanically good, not a tough job. On a Xi, the front axle has to be removed for clearance.

5) Where can i buy some from??
Ebay
The bold part is incorrect.
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Old 10-29-2009, 04:50 PM   #4
aggieE46
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Yep, I definitely made torque over the entire powerband.

Quote:
Originally Posted by Iceman00 View Post
The bold part is incorrect.
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Old 10-29-2009, 04:52 PM   #5
aggieE46
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As for fuel economy, increased when cruising, decreased any time you step on the gas.
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Old 10-29-2009, 11:13 PM   #6
Bimmer Dude Xi
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Thanks for the correction, thats good info to know
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