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Unitronic Complete Fuel System Upgrade for MK8 GTI

Marsoni M251S
Sale price$875.00
Pay 4 payments of $218.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
Unitronic Complete Fuel System Upgrade for MK8 GTIThis complete Fuel System Upgrade contains Unitronic's MPI Upgrade Kit and Unitronic's Low Pressure Fuel Pump (LPFP) solution for the MK8 GTI. This combination increases fuel flow and stability in order to maximize performance gains with our upcoming Stage 3 E85 Performance Software (coming soon). As with all Unitronic Hardware Upgrades, this kit provides seamless integration which does not require any splicing, trimming or vehicle modification in
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Your Unitronic Complete Fuel System Upgrade for MK8 GTI orders ship within 1-2 business days.

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  • Standard: 3-7 business days
  • Fast: 2-3 business days
  • Express: 1-2 business days

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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
4.1 ★★★★★
Based on 700 reviews
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Product Reviews
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Verified Purchase
Keith D. Thompson Jr.
Louisville, US
★★★★★ 4
CONVENIENT BUT MAY BE HARD FOR SOME TO SWALLOW
Size: 84 Count (Pack of 1)
I've tried lots of different types of fiber supplements. For convenience, this one is the best. A lot has been said about how large the pills are for swallowing, but I have bigger pills than these, and they go down fine. The issue is the shape of the pill. It's made not cylindrical, but with 4 faces with sharp corners. These make the pills tend to stick a bit on the way down. I would not recommend these pills for someone with swallowing difficulties. That being said, they do work.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
D
Verified Purchase
Dick Snyder
Massapequa, US
★★★★★ 5
As described
Size: 84 Count (Pack of 1)
No taste. Works well for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
D
Verified Purchase
daVi
Draper, US
★★★★★ 5
Hard to swallow
Size: 84 Count (Pack of 1)
This pill should have been in a tumbler or something to make it smooth like others. Otherwise I've had no issies or side effects. I'll continue to buy it, but i with it was more smooth to swallow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2025
G
Verified Purchase
gls or sewnserge
Pawtucket, US
★★★★★ 5
Works great.
Size: 84 Count (Pack of 1)
Like the tablets much more than the powder, but need to take 3 fairly large tablets. If I could remember to take it 3 times a day, it wouldn't be bad, but I take 3 all together. A little hard to get down.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 10, 2025
A
Verified Purchase
Anthony m.
Grantham, US
★★★★★ 3
They go fast
Size: 84 Count (Pack of 1)
Ok
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026

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