SKU: 9923718814

STAGE 1 PERFORMANCE UPGRADE TO SUIT BMW 4 SERIES 420I B48B20M0 TURBO 2.0L I4

Sale price$119.25 Regular price$132.50
Save 10%

Pay in installments of $33.12 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

STAGE 1 PERFORMANCE UPGRADE TO SUIT BMW 4 SERIES 420I B48B20M0 TURBO 2.0L I4This Mace ETC and K&N's air filter have been put together to meet the performance upgrade requirements of BMW 4 series B48B20M0 and B48B20O0 I4 engines. 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 ETC that helps you to increase throttle response and

This Mace ETC and K&N's air filter have been put together to meet the performance upgrade requirements of BMW 4 series B48B20M0 and B48B20O0 I4 engines.

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 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.Â


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
  • Height: 1.25 in (32 mm)
  • Outside length: 10.5 in (267 mm)
  • Outside width: 8.563 in (217 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: 9923718814

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 22 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
D
Verified Purchase
Donald Stanton
Grantham, US
★★★★★ 4
Great product
Material Type: Carbon Fiber Leather, Color: Black-3926
Very strong and reliable can't carry much cash but it is very handy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
V
Verified Purchase
Vince Applegate
Port Orchard, US
★★★★★ 5
Great front pocket wallet.
Material Type: Leather, Color: Coffee-4338
This Wallet is great. It took some getting used to having the cards all in one slot, but since they pop up in a stair-step design as long as you keep your cards in the same order you’ll always reach for the right one. Materials are high quality and it feels good in the hand. I really like the look and weight of this wallet as well. I will likely purchase these as gifts for the other men in my life.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
M
Verified Purchase
Michael Notaro
Fort Morgan, US
★★★★★ 5
Rfid wallet
Material Type: Carbon Fiber Leather, Color: Black-3926
Just received the wallet. It does exactly what I expected it to do. Hold my cards securely and has a money clip, plus rfid blocker. Great price too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 21, 2026
R
Verified Purchase
Richard Terling
Charlottesville, US
★★★★★ 5
As advertised...Quality
Material Type: Leather, Color: Black-6313
As advertised...Should have purchased sooner....quality and reasonable price...guaranteed
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
H
Verified Purchase
Heavy_Deuce
Charlottesville, US
★★★★★ 5
For the Back Pocket Carrier out there....
Material Type: Leather, Color: Forest Brown-4337
I think this wallet is awesome! I've been carrying for about a week and it is working out great. I usually don't carry cash but for the last week, I've actually had a little cash on me. Instead of using the clip on the back (that clip is pretty tight and I don't like the look of having cash there), I just put is under the ID flap and the magnetic closure holds it in place. I love the color, the trigger works great, and the cards are held securely even when it isn't completely full. I also like the size. It requires me to carry less, which is something I need. (I realized two weeks ago that I had been carrying an old debit card in my old wallet around that had expired in 2023 and it turned out that I didn't have an account at that bank! hahahahahaha. I must be getting old.). This is important to me: I carry a wallet in my back pocket. I always have and that is what is comfortable to me. Front pocket carry feels weird to me. I've been carrying this wallet in my back pocket and sitting on it with no issues. I'm a big guy (300 lbs) and, so far, it's held up great. In all honesty, I do take it out of my pocket and put it in my console when I drive, but that's it. Everywhere else I go, and sit, it stays in my back pocket. I know it's only been a week, but I'm glad to see that I haven't crushed it, or deformed it, or anything. Ultimately, it's been great and I'm glad I got this one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026

recommand products