Pay in 4 interest-free payments of $108.62 Learn more
Ships within 48 hours · Estimated delivery Aug 19 - Aug 24
Signature Series muffler offers a moderate performance tone and increased performance over the stock system
0L V8 1981 - 1985 Pontiac Parisienne 231/3
34/8 V 1972 - 1976 Dodge Monaco 4
2 V8 1966 - 1967 Chrysler Imperial LeBaron 440/7
4L V8 1968 GMC C25/C2500 Pickup 327/5
Unlock AND TuneinTune 3 for 2020-2023 6.6 L8T Unlock and Tune Kit 8266-R transmission-pans Signature Series muffler offers aThe 2020 2023 6. 6 L8T GM gas trucks have been locked down since their introduction. Owners of these trucks have been waiting patiently for a tuning solution, and DiabloSport has delivered in a big way! The new 8266 R kit includes our inTune 3 handheld tuner, along with our industry exclusive locksmith device and harnesses required to unlock the ECM in your truck. Once unlocked, the inTune 3 offers up tunes for 87, 91 and 93 octane fuels, as well as 2
US$ 179.00
US$ 125.00
US$ 55.00
