★★★★★ 5
Frenchie approved
Color: A.Orange+Blue+Green
Frenchie approved
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
BFI MK3 1.8T Swap Fueling Upgrade (Stage 2 - K04/FT21)
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
BFI MK3 1.8T Swap Fueling Upgrade (Stage 2 - K04/FT21)This kit includes everything necessary to upgrade your existing Black Forest Industries MK3 1. 8t Turbo Kit from a K03 turbo to the K04 F21 kit. Included are 4 upgraded Audi TT 225 Injectors as well as a specific chip for management, custom made by C2 Motorsports.
Quick Dispatch:
Your BFI MK3 1.8T Swap Fueling Upgrade (Stage 2 - K04/FT21) orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
Order Tracking:
You'll receive a tracking link by email once your BFI MK3 1.8T Swap Fueling Upgrade (Stage 2 - K04/FT21) ships.
Need Help?
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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
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4.6 ★★★★★
Based on 1159 reviews
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Product Reviews
★★★★★ 5
Soft and light
Color: A.Orange+Blue+Green
My doxie loves them
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
★★★★★ 5
Yes!
Size: Medium
Durable. Squeak doesn't last forever with my aggressive chewers but crinkle does. Best balls.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 28, 2025
★★★★★ 5
Balls
Size: Medium
My dog loves chasing these balls. He seems to love the squeak! They fit the chuck it stick perfectly, and are great replacements for the originals that came with the stick.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
★★★★★ 5
Nice set of balls
Size: Medium
The squeaker quickly became my dog’s favorite ball and has replaced the fuzzy tennis balls. My dog is a nonstop fetcher and these chuck it balls are durable and fun.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2026
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