S58 B58 Stage 3 LPFP for BMW G Chassis M240i, M340i, M440i, 540i, M2, M3, M4, X3M, X4M
SKU: 84133293528

S58 B58 Stage 3 LPFP for BMW G Chassis M240i, M340i, M440i, 540i, M2, M3, M4, X3M, X4M

$224.55 $249.50
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

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Description

S58 B58 Stage 3 LPFP for BMW G Chassis M240i, M340i, M440i, 540i, M2, M3, M4, X3M, X4MShooting for big power on your B58 or S58? You need this low fuel pressure fuel pump upgrade! Our stage3 low pressure upgrade LFP adds in an additional Walbro pump to fuel up to 900whp with the 450 pump or up to 1100whp with the 525 pump! This unique low pressure fuel pump (LPFP) kit is the only one on the market that retains full function of your direct injection fuel filter AND your low fuel pressure regulator! Eliminating the concern for clogging

Shooting for big power on your B58 or S58? You need this low fuel pressure  fuel pump upgrade! 

Our stage3 low pressure upgrade LFP adds in an additional Walbro pump to fuel up to 900whp with the 450 pump or up to 1100whp with the 525 pump!   

This unique low pressure fuel pump (LPFP) kit is the only one on the market that retains full function of your direct injection fuel filter AND your low fuel pressure regulator! Eliminating the concern for clogging expensive direct injection fuel injectors or worse blowing out the factory plastic lines which so often happens with competitors kits.

This is a full DIY kit that you can install at home in under an hour. The second pump can be triggered off your port injection controller including ReFlex, CANfuel, or JB4PRO, or even off a simple boost activated Hobbs switch! 

Vehicle Fitment 

BMW 2 Series
• 2022+ G42 G43GEN2 B58 BMW M240i including xDrive

BMW 3 Series
• 2020-2024 G20 G21 GEN2 B58 BMW M340i including xDrive

BMW 4 Series
• 2021-2024 G22 G23 G26 GEN2 B58 BMW M440i including Gran Coupe and xDrive

    BMW 5 Series
    • 2017-2023 G30 G31 GEN2 B58 BMW 540i including xDrive

    S58 Powered M Vehicles

    BMW M2
    • 2023+ S58 G87 BMW M2

    BMW M3
    • 2021+ S58 G80 BMW M3
    •     2021+ S58 G80 BMW M3 Competition

    BMW M4
    • 2021+ S58 G82 BMW M4
    •     2021+ S58 G82 BMW M4 Competition
    • 2023+ S58 G82 BMW M4 CSL
    • 2022+ S58 G83 BMW M4 Convertible

    BMW X3M
    • 2020+ S58 F97 X3M
    •     2020+ S58 F97 X3M Competition

    BMW X4M
    • 2020+ S58 F98 X4M
    •     2020+ S58 F98 X4M Competition

    What's Included:
    (1) Secondary power installation kit
    (1) Secondary trigger installation kit
    (1) Walbro power connector
    (1) Walbro billet fuel fitting
    (1) Walbro fuel pump (450 or 525 depending on dropdown option)
    (1) Walbro fuel filter
    (1) Billet Adapter Tee
    (1) Billet D ring Pump Bracket
    (1) SS L bracket
    (1) 8" corrugated hose
    (2) KP035 fittings
    (2) 12.3mm Otiker clamps
    (2) Ring terminals
    (2) 8-32 bolts
    (2) Lock nuts
    (2) Flat washers
    (4) tooth lock washers
    (3) M6x12 screws






    Dyno charts shown on full E85. 

    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: 84133293528

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    4.7 ★★★★★
    Based on 1097 reviews
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    M
    Verified Purchase
    Mike
    Fort Morgan, US
    ★★★★★ 5
    Great sound mat for the price!
    Style: 50 mil 50 SqFt, Style: 50 mil 50 SqFt
    This is a good product. Many people go with KILMAT because of the value to price point. I did as well. When you clean the surface (in my case it was all painted metal) this stuff sticks very well. I do recommend you use a seam roller of some type, I used Lumiteco 3 piece roller set. This will help with adhesion and mostly flatten the overlapped edges. It also helps you see where you have rolled as it leaves little grooves. The difference when we had no sound mats and after was very impressive. We haven't finished our install yet and it is quieter than when we had an interior in the van. There are thicker mats available in other brands, but this will work great for our van build, but this helps keep the weight down. It is quality material, just be careful when you are removing the backing, the edge of the foil face can cut you. I suggest you layout where you are installing the mat and cut to fit. From what I have read, you don't need to cover every inch in the vehicle, just spot install for a big difference. I chose to cover most surfaces to help keep sound out when we are sleeping in the van. We haven't finished putting the van yet, but we have driven it around and been very satisfied with this product.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on December 3, 2025
    P
    Verified Purchase
    Paul
    Chelsea, US
    ★★★★★ 5
    Excellent sound deadening mats
    Style: 80 mil 36 sqft, Style: 80 mil 36 sqft
    Purchased these for a 2020 Lexus RX350 due to the hollow sound of the car doors when shutting. They sounded cheap. The mats are super sticky and I applied them when the doors were hot from sitting in the sun. They alubutyl sticks like crazy and the end result was perfect. Now I have solid sounding doors. Good quality product.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on May 20, 2026
    A
    Verified Purchase
    Amazon Customer
    Alexandria, US
    ★★★★★ 5
    Awesome product 👌
    Style: 50 mil 50 SqFt, Style: 50 mil 50 SqFt
    I love this stuff. I use it alot. Sticks great Easy to use Molds super easy Really helps with sound. Great product. I wish I could get sponsored for this product on my projects..
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 30, 2026
    J
    Verified Purchase
    john l fields
    Charlottesville, US
    ★★★★★ 5
    Good product at a good price
    Style: 80 mil 36 sqft
    This product works great and easy to install. I do two or more vehicles a month. I switch to this brand a year ago and would recommend to everyone of my customers
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 16, 2026
    N
    Verified Purchase
    napoli
    Chelsea, US
    ★★★★★ 4
    Good deal for the price
    Style: 80 mil 18 SqFt
    The product is good and contrary to some comments I read it was not a mess to install and went on very nicely. That said I placed on a 71 Baracudda and starting from a 71db I was able to drop that down to about 66 with two layers Kilmatt 80mil
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on April 18, 2026

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