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!