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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 02-16-2009, 04:08 PM   #1
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Exclamation Active autowerks headers,exhaust,chip tune

What kind of hp gains am I looking at getting with theses, my main hope is that the engine will be much more responsive and have more pull through the rpms. I've noticed that the engine wants some more air through it when really getting on it. The setup I'm planning on is no cats either. Please enlighten me I'm really only well informed with carburated v8s, thanks in advance.
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Old 02-16-2009, 04:17 PM   #2
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Also where is the easiest place to start for weight reduction besides the spare tire. I was already planning on ditching the factory seats and just doing 2 5 point buckets in the front and only 2 in the back too. That should shed some weight.
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Old 02-20-2009, 02:57 PM   #3
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With headers, exhaust, cat delete, and software you will see about 15hp. As for weight reductions, you can go with a CF hood and light weight wheels. If you really want to start to reducing your curb weight, you ca start removing your carpet and various interior parts. Let me know if you would like some help with parts!

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Old 02-20-2009, 03:10 PM   #4
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Lightweight flywheel and clutch, lightweight wheels, cf roof, cf trunk, cf hood. Ditch your spare. Headers.
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