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Forced Induction
Sponsored by: SmartAutoWarranty.com Discuss Forced Induction on BMWs with SmartAutoWarranty.com (turbos and superchargers).
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Your Ride: 2003 325i, 2012 135i
Twin Turbo
I believe the 2012 135i has a Twin Turbo. Can any one tell me what that is? Are there two Turbo's? Is the air circulated twice? In layman's terms how does it operate? All comments are welcome.
Depends on the engine you have. The N55 has a single turbo, but the N54 has a twin turbo. The way it's set up is that the first turbo helps spin the second turbo which helps reduce turbo lag.