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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 03-06-2013, 12:12 AM   #1
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Join Date: Dec 2012
Location: Kedah, Malaysia
Posts: 4
My Ride: E46 318i 2.0 5MT
E46 318i (N42) 5MT to 6MT?

I am planning to swap a 6 speed gearbox into my 318i N42 engine which is on a 5 speed manual gearbox now.

The main reason i wanted to get a 6 speed because of high RPM when cruising. example 140kmh@4000rpm, 200km@6000rpm (redline)

It seem like overload/stress out my engine for a long distance travel with 140kmh cruising =(

Now i m running on stock diff (3.38). Although getting a lower ratio will solve the high rpm problem, but i will lost the lower end power.

What are the option of 6 MT that i have? i was thinking to get a 6MT from E90 320 (N46 Engine). But not sure will it fit into my N42 or not. It seems like nobody had done this on n42 before..
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