M135i back box on 116i

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Manufactured from end of 2011

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marco_polo
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Re: M135i back box on 116i

Post by marco_polo »

The black plastic box is the valve's motor/actuator. You don't need that as you don't have the wiring to connect to it. There should also be a horseshoe spring, don't need that either.

The actual round 'butterfly' valve lives inside the tailpipe, rotating on a spindle. Making sure the valve is fully open, lock/wire/weld the spindle to prevent it from moving. Job done.
Silver F21 M135i - ManBox - HK - Adaptive + Eibach Pro's - BBS CH-R's - BMWP Drexler LSD - M4 LCA's

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Haldon
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Re: M135i back box on 116i

Post by Haldon »

Thank you Marco, i understand now!
F20 116i - stage 1

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Vit0
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Re: M135i back box on 116i

Post by Vit0 »

Hi, I just don't want to open new thread, so can I fit M140i exhaust from LCI, with my Pre-LCI M135i diffuser?

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M135i back box on 116i

Post by J25LY »

Vit0 wrote:Hi, I just don't want to open new thread, so can I fit M140i exhaust from LCI, with my Pre-LCI M135i diffuser?
Sorry mate, this won’t fit as the m135/m140 are different due to the hangers, backbox pipe and exhaust back box


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F20 M135i

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