Navardi Tuned

N20 N26 Darton Sleeves Set

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I Understand The Machining Requirements As Listed

Maximize Your N20/N26 Engine's Performance with Our Darton Sleeves

Looking for unparalleled reliability and the potential for substantial horsepower and torque gains? Look no further. We stand as the sole company dedicated to extensively developing the N20/N26 and B48 engine platforms, producing some of the world's most robust engines.

Why Choose Our Darton Sleeves?

  • Unmatched Durability: Our sleeves are designed to withstand over 1000 HP, setting the foundation for a powerhouse N20 engine.
  • Comprehensive Upgrades: Perfectly complement these sleeves with the right turbo and internals for extraordinary performance.
  • Lead Time: Please be aware these sleeves are made to order, with a current lead time of 6 months due to global logistics challenges.

Key Features:

  • Enhanced block strength and cooling capabilities.
  • Increased potential for boost and horsepower.
  • Optimal oil and compression control, ensuring superior cylinder sealing and ring wear.
  • Made from bulletproof Darton ductile iron.
  • Includes 4 individual sleeves (block not included).

Important Installation Notes:

  • Precision machining required: A 3-axis CNC machine is necessary for accurate block machining. Installation tolerances range between 0.001 and 0.002 inches. Ensure your machinist or CNC can meet these specifications before proceeding.
  • Torque Plate Honing is mandatory for optimal sleeve installation. (N55 Plates can be modified to suit)
  • Very Basic instructions are provided, this is because it is up to your Machinist to develop their own CNC process to fit these in the block
  • When out of stock there is a 18 week lead time to manufacture

We understand the wait might be lengthy, but the quality and performance gains from these Darton Sleeves are unparalleled. Equip your N20/N26 engine with the best, and unleash its full potential.

Embark on the journey to transforming your engine into an absolute powerhouse. Contact us today to secure your order or to learn more about how our Darton Sleeves can revolutionize your vehicle's performance.

  • Hurry, only 6 items left in stock!
BMW N20 N26  Darton Wet Sleeves BMW N20 N26  Darton Wet Sleeves BMW N20 N26  Darton Wet Sleeves BMW N20 N26  Darton Wet Sleeves BMW N20 N26  Darton Wet Sleeves


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BMW Tuning
Bootmod3 Custom Tune
BMW F series
BMW F20 N20

I’ve met Harry from Navardi a couple off months ago and from that everything went straight upwards. He helped me out with different questions on my n20 engine with lower compression pistons.

Salem, Belgium

Awesome experience, Harrison’s work is remarkable. He did a wonderful job on BM3 custom tuning for my wagon F31 N20. Has excellent recommendations and resources. Without any doubts, eyes closed in trust any tune.

Billy, Canada

Harry at Navardi Tuned is the most knowledgeable tuner for these engines. My n20 now performs greater and more efficiently; strong, smooth, and consistent!

Spencer, USA

Perfect job done by Harrison on my BMW F33 420i engine.

Very serious, he spared no effort to provide me with top-level programming. Powerful, flexible reactive with maximum reliability.

I live in France the time difference has never been a problem. Depending on the datalogs produced, I received dozens of updates over several weeks. Excellent follow-up.
Definitely recommend Navardi Tuned!

Laurent, France

The most seamless experience, Harry (the owner) is the most helpful person I've ever met in this industry! I recieved endless support throughout the months before tuning, all the way through the tuning process, and a TON of follow up afterwards. Do not listen to some of the other reviews here on Google, they are spreading serious mis-information. They are all missing the fact that the owner of the troubled vehicle acted negligently in looking after a car that HE decided to tune well above factory specs... seemingly very idiosyncratic to a normal person. Regardless of this, if you want your BMW tuned to make it more enjoyable to drive, or to accompany any modifications you have done to it, you couldn't find a better guy than Harry.

Ryan, Australia