SKU: 59978345615

STAGE 1 PERFORMANCE UPGRADE TO SUIT BMW Z SERIES Z4 N52B25 2.5L I6 FROM 05/2009

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Description

STAGE 1 PERFORMANCE UPGRADE TO SUIT BMW Z SERIES Z4 N52B25 2.5L I6 FROM 05/2009This Mace ETC and K&N's air filter have been put together to meet the performance upgrade requirements of BMW Z4 N52B25 I4 engine. Mace ETC eliminates the delay that exists between the throttle pedal and the butterfly in the throttle body, re establishing throttle response and bottom end acceleration while improving low torque. There are different performance modes in this electronic ETC that helps you to increase throttle response and improve overall

This Mace ETC and K&N's air filter have been put together to meet the performance upgrade requirements of BMW Z4 N52B25 I4 engine.

Mace ETC eliminates the delay that exists between the throttle pedal and the butterfly in the throttle body, re-establishing throttle response and bottom-end acceleration while improving low torque. There are different performance modes in this electronic ETC that helps you to increase throttle response and improve overall drivability.

The K&N replacement air filter is designed to boost the horsepower and acceleration while providing superior filtration. It is washable and reusable and is custom designed to fit into your existing factory air box. This filter lasts up to 80,000km before cleaning is required depending upon driving conditions. It comes with K&N million mile limited warranty and it will not void vehicle warranty.


Modes of ETC:

  • Sport Mode: 9 stages of increased accelerator response suited for spirited driving.
  • Economy Mode: Reduced accelerator response suited for economy driving around towns and on highways.
  • Normal Mode: Factory throttle response.


ETC Features:

  • OBD.II free, meaning power is sourced directly from the pedal and additional plugs are no longer required.
  • Temperature ranges from -40 to 125 °C..
  • Previously set stage numbers are retained thanks to Power off memory function.
  • Digital signal output AD/DA up to 10 Bit, efficiently responds to the original throttle signal.


Air Filter Specifications:

  • Air filter shape: Panel
  • Outside length: 10.625 in (270 mm)
  • Outside width: 10 in (254 mm)
  • Height: 0.875 in (22 mm)


Contents:

  • 1 X Mace ETC
  • 1 X K&N Air filter

Vehicle Fitment Guide


Notes:

  • Installation of the Mace ETC is quite simple and the modification is completely reversible within a couple of minutes. All kits include simple fitting and calibration instructions.
  • The air filter included in this package can be purchased separately through another listing.
  • The ETC included in this package can be purchased separately through another listing.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • 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: 59978345615

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4.4 ★★★★★
Based on 22 reviews
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Verified Purchase
Chloe D.
New York, US
★★★★★ 5
Great value and size
Very compact and airs the tire up super fast. Would recommend, great to keep in the car always
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
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Verified Purchase
Dave
Carnegie, US
★★★★★ 5
Just ordered another for an additional car -- original purchase from 2022 still going strong.
Just ordered my 3rd to keep one in each car. Good unit. The first one I bought was in 2022 and still works great. Reasonable fast to inflate tires -- don't compare it to shop air or a gas station, but it's way faster than cheaper ones. Only negative, I think my daughter lost one somehow because I should have had enough! :-)
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Reviewed in the United States on April 10, 2026
T
Verified Purchase
Tom Shutt
Houston, US
★★★★★ 4
Easy to use tire pump
Has easy to read digital pressure gague. Has built in light for finding tire valve stem in dim garage. Hose is flexible and stores by wrapping around pump. Shuts off automatically when tire is at desired pressure. Pressure on pump matched readings on my car tire pressure readout. Pressure only shows half psi increments so it takes a while to see if the tire is inflating. Inflation is somewhat slower than the one this pump replaced but it gets there accurately eventually.
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Reviewed in the United States on January 26, 2026
S
Verified Purchase
Shopper
Los Angeles, US
★★★★★ 5
Nice tire sealant.
Size: 32 oz
This seems to work very well. I will say that it seems to be pretty important to move the wheel around as soon as you can to distribute the product within the tire. I was held up for a few minutes and the Liqui tube seemed to start to set up in one spot and made the tire out of balance so I had to work quick to get it to distribute to the other parts of the tire. It seems to have worked though and so far the tires are holding air very well. I will be interested to see if it lasts for a long time but so far so good.
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Reviewed in the United States on May 18, 2026
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Verified Purchase
Captain Al
Massapequa, US
★★★★★ 5
This stuff works!
Size: 32 oz
I was sceptical but wanted to avoid replacing 2 rear tires on my zero turn mower. The tires were leaking air and had bad sidewall cracking. I found the use of the product to be easy and quick. I aired up the tires and rode around the yard a few minutes to distribute the product in the tires. It has been 4 days and both tires remain aired up. Previously both tires would already be flat within this timeframe. Excellent results for me!
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Reviewed in the United States on May 18, 2026

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