M140i 3.5" Turbo Back Exhaust

Williams Performance specialise in the M-Lite range of BMW's and the supply of GENUINE BMW parts at cheaper than main dealer prices. We carry a range of common M-Lite service parts in stock and all other parts can be quickly sourced. We stock and supply performance aftermarket parts for BMW M-Lites and many other makes and models of vehicles.

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williams
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M140i 3.5" Turbo Back Exhaust

Post by williams »

Been excited to get this made.
Looking forward to getting more done and seeing them on other cars too.

4.5" catless downpipe to 3.5" system

Handmade in northeast England

https://williamsperformance.co.uk/produ ... 9610&_ss=r



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Williams Performance - Genuine BMW and performance parts at affordable prices

Full workshop services on-site


https://williamsperformance.co.uk/

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Re: M140i 3.5" Turbo Back Exhaust

Post by williams »

Few pictures from underneath

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Williams Performance - Genuine BMW and performance parts at affordable prices

Full workshop services on-site


https://williamsperformance.co.uk/

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Re: M140i 3.5" Turbo Back Exhaust

Post by williams »

Another system made. Looking forward to dyno testing Image

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Williams Performance - Genuine BMW and performance parts at affordable prices

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https://williamsperformance.co.uk/

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Re: M140i 3.5

Post by williams »

Our 3.5" turbo back exhaust is now done.
The first customer was Pure Turbos, who wanted it for their Pure800 equipped M140i.
As they have their own rolling road they done a back to back test with the previous exhaust they were using.
1st exhaust was a full Remus system with catless downpipe, this made 464hp. The exhaust system was then changed to the full turbo back Williams Performance exhaust and ran on the same dyno with exactly the same BM3 stage 2 OTS map. Our exhaust gained an extra 20hp and 20nm!!! And this is over an already catless exhaust.


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Williams Performance - Genuine BMW and performance parts at affordable prices

Full workshop services on-site


https://williamsperformance.co.uk/

Forum Section viewforum.php?f=117

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williams
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Re: M140i 3.5" Turbo Back Exhaust

Post by williams »

More testing done by @pureturbos.eu on our exhaust system. This time it was tested on the BM3 stage 2 E30 map, again it was against a Remus catless system.

36hp and 28nm gain over the Remus!

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Williams Performance - Genuine BMW and performance parts at affordable prices

Full workshop services on-site


https://williamsperformance.co.uk/

Forum Section viewforum.php?f=117

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williams
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Re: M140i 3.5

Post by williams »

Williams Performance - Genuine BMW and performance parts at affordable prices

Full workshop services on-site


https://williamsperformance.co.uk/

Forum Section viewforum.php?f=117

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