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M2 Technical Topics > N55 Engine / Drivetrain / Exhaust / Bolt-ons / Tuning > New downpipe and turbo inlet.

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      04-27-2020, 04:02 AM   #23
3t3p
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Proabably the noticed Hp is from the downpipe? Did not think turbo inlet with stock mapping gave more Hp?
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      04-27-2020, 04:11 AM   #24
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Quote:
Originally Posted by 3t3p View Post
Proabably the noticed Hp is from the downpipe? Did not think turbo inlet with stock mapping gave more Hp?
I also have a lot less turbo lag and I can hear a lot more turbo whistle. I am sure the DP helped the most but I think the inlet pipe has added performance. Inlet pipe has a bigger turbo opening diameter than stock
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      04-27-2020, 06:19 AM   #25
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Quote:
Originally Posted by 3t3p View Post
Proabably the noticed Hp is from the downpipe? Did not think turbo inlet with stock mapping gave more Hp?
Fitted Pure inlet to both my ewg M135i and now to my m2.

Removing the restriction on the comp side of the turbo helps turbo spool quick and maintain boost with less DME intervention even on std tune (and more so once you up the boost targets with a remap.)

As the car is more responsive and more consistent, may make it feel like it has more power/torques....
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