Derringer Tuner For Chevy/GMC Duramax 2020-2023 in Farmington, Utah

$375

Derringer Tuner
Adds up to +81 hp, 144 lb-ft
with iDash SuperGauge
FOR 2 CHEVY/GMC 2 6.6L DURAMAX, L5P
$939.88 FULL RETAIL PRICE, asking for $375 for this gently used one.

Has a 4.9 star rating.

The specs and details were too long for me to copy here, but you can read them on their website bankspower.com .

Cash or Venmo accepted.

Texting preferred.

Bought last fall, so only 6 months old roughly.

Thanks!


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