SKU: 40493136398

Dorch Engineering B58 Gen1 Lift Kit – Exhaust Camshaft +40% - BMW / B58 / F2X / F3X / & More

Sale price$491.85 Regular price$546.50
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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

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Description

Dorch Engineering B58 Gen1 Lift Kit – Exhaust Camshaft +40% - BMW / B58 / F2X / F3X / & MoreAfter years of setting records with our S55 and N55 Lift Kit camshaft products, were now releasing our Gen1 B58 Lift Kit. This is an absolutely game changing product for the Gen1 B58 community! This upgrade consists of a BILLET* OEM spec exhaust camshaft with our custom high lift fuel lobe. Since the camshaft profile is OEM spec, this means theres no need for upgraded valve springs or any special tuning. Install this with your Dorch HPFP and you get

After years of setting records with our S55 and N55 “Lift Kit” camshaft products, we’re now releasing our Gen1 B58 “Lift Kit”. This is an absolutely game-changing product for the Gen1 B58 community! This upgrade consists of a BILLET* OEM spec exhaust camshaft with our custom high lift fuel lobe. Since the camshaft profile is OEM spec, this means there’s no need for upgraded valve springs or any special tuning. Install this with your Dorch HPFP and you get 40% MORE fueling capacity beyond our existing HPFP flow! 

*Billet machined camshafts are not to be confused with compromised regrinds of the stock camshaft.

DS25-250 HPFP Specs DS25-250 DS25-250 with + 40% Cam Upgrade
Flow Potential Gasoline 750whp 1000whp
Flow Potential E85 550whp 770whp
Operating Pressure 250 Bar 250 Bar

 

Gen1 B58 engines have two different versions of camshafts depending on build date. These two Gen1 engine versions have been designated as Gen1 and “Gen1.5”. The link below clarifies the 08/2017 build date cutoffs and which engine your vehicle is equipped with. As always if you are unsure on fitment, simply send us an email with your VIN.

NOTE: Once you get towards the upper limits of our DS25 HPFP, the B58 fuel system is very much limited by the injectors. In order to see the true benefits of this upgrade, you will need higher flowing injectors.

**ONLY UP TO 2019 Model Year
KIT NOT COMPATIBLE with Gen2 B58 Vehicles**

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 40493136398

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Ana
Natrona Heights, US
★★★★★ 5
Exelente
Color: 3670: Two tone band & Blue dial
Es lo máximo
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Reviewed in the United States on December 12, 2025
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Kindle Customer
Bozeman, US
★★★★★ 5
Good accurate time piece
Color: 3675: Two tone band & Blue dial
Good value
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Reviewed in the United States on November 23, 2025
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Jesse blake
Birmingham, US
★★★★★ 1
Did not work
Watch looks great, but did not work at all.
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Reviewed in the United States on August 3, 2025
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GrossMotorGuru
Port Orchard, US
★★★★★ 5
Classic and functional
Color: Stainless Mesh/ Blue Dial
High quality and affordable watch. Love the mesh band. It’s a classic, functional everyday look. Easy to adjust, and never runs out of power. Perfect for men who have smaller wrists. Bought for my husbands birthday, and he loves it.
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Reviewed in the United States on July 31, 2025
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Adrian
Draper, US
★★★★★ 5
Everything as expected
Color: Stainless Mesh/ Blue Dial
It's a nice watch added to the collection, looks really good on hand, the metallic mesh band is very elegant and also customizable, so it will fit perfectly on your hand. It seems that it had a bit of charge out of the box, but I'll leave it under a direct (under 20cm distance) LED desk lamp to recharge overnight, I'll also leave them under sunlight around the windows whenever possible (at least for the first week or so), it's stated in the online manual that it will need ~45 hours to fully charge on a cloudy day under the sunlight. By the way, it would've been nice to have the manual in the box, but at least it's easy to find the (generic) manual in their website. The fluorescence of the hands and hour dots are really bright and mine had nice bluish color. Of the features, the chronograph works perfectly as expected, the manual also states to set the time 5 minutes ahead of the real time then slowly rewind back to the current time whenever setting the time, for the time keeping to be more accurate because of some gear movements inside. To be honest, it would be great to see Citizen use scratch resistant sapphire instead of some mineral as the face protective layer, as they do for other high-end models, the technology is not new and I think it wouldn't make it that much more expensive, I hope this one will be resistant enough🤞🏻 Overall, this is the first day I received the watch, I'm quite happy with my purchase, it's nice knowing you won't need to replace the battery anytime soon 😛
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Reviewed in the United States on December 12, 2023

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