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WSRD '18-'21 120HP Big Injector Upgrade Packages (205-237HP)

Marsoni M251S
Sale price$1759.00
Pay 4 payments of $439.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
WSRD '18-'21 120HP Big Injector Upgrade Packages (205-237HP)WSRD Big Injector Packages Whalen's Speed is capable of flashing the stock ECU for intercooler fan control to avoid the use of a fan on off switch. Please contact us for this as well before sending ECU. Same day turn around time is expected for this service. What's Included? DynoJet Power Vision (PV3) WSRD Big Injector Tune(s) Race Gas & E85 Packages include alternate fuel options WSRD Injector Set + PNP Adapters WSRD Wastegate WSRD Plug & Play Fuel
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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
4.4 ★★★★★
Based on 466 reviews
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Verified Purchase
Aurajeanne
Fort Morgan, US
★★★★★ 5
Perfect fit
This fit perfectly into my cabin air filter slot. Save me a lot of money, getting it off here as the mechanics went to charge so much more money just to slip this filter into your car. Anyone can do it so don’t hesitate to do your own cabin filter exchange and save yourself big bucks.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 1, 2026
N
Verified Purchase
Not bad. But as it is with Chinese carburetors the cold start.
Draper, US
★★★★★ 4
Nice product
It’s good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
S
Verified Purchase
Shouka
Carnegie, US
★★★★★ 5
It was a good fit
It was a good quality Thanks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2026
J
Verified Purchase
JB
Charlottesville, US
★★★★★ 5
DIY forget the dealer
DIY value
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
M
Verified Purchase
Mike
Louisville, US
★★★★★ 5
Works
Decent quality, somewhat flimsy, not bad for the price. Fit perfectly, correct thickness.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 17, 2025

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