Collection: GMC

2017 - 2023 GM 6.6L L5P Duramax | Transmission Tuning by PPEI

5.0 / 5.0

(5) 5 total reviews

2001 - 2004 GM 6.6L LB7 Duramax | Engine Tuning by PPEI

5.0 / 5.0

(3) 3 total reviews

2015.5 - 2016 GM 6.6L LML Duramax T87 | Allison Transmission Tuning by PPEI

5.0 / 5.0

(3) 3 total reviews

2001 - 2004 GM 6.6L LB7 Duramax | Allison Transmission Tuning by PPEI

2017 - 2019 GM 6.6L L5P Duramax T87A | Transmission Tuning by PPEI

5.0 / 5.0

(2) 2 total reviews

Bold Sale Test - 2001 - 2004 GM 6.6L LB7 Duramax | Engine Tuning by PPEI

2011 - 2015 GM 6.6L LML Duramax A50 | Allison Transmission Tuning by PPEI

5.0 / 5.0

(5) 5 total reviews

2006 - 2007 GM 6.6L LBZ Duramax | Transmission Tuning by PPEI

5.0 / 5.0

(3) 3 total reviews

2006 - 2007 GM 6.6L LBZ Duramax | Engine Tuning by PPEI

5.0 / 5.0

(1) 1 total reviews

2011 - 2016 GM 6.6L LML Duramax | Engine Tuning by PPEI

5.0 / 5.0

(4) 4 total reviews

2017 - 2023 GM 6.6L L5P Duramax | Engine Tuning by PPEI

5.0 / 5.0

(3) 3 total reviews

2004.5 - 2005 GM 6.6L LLY Duramax | Allison Transmission Tuning by PPEI

2004.5 - 2005 GM 6.6L LLY Duramax | Engine Tuning by PPEI

5.0 / 5.0

(1) 1 total reviews

2007.5 - 2010 GM 6.6L LMM Duramax | Allison Transmission Tuning by PPEI

5.0 / 5.0

(1) 1 total reviews

2016 - 2018 GM 2.8L Duramax | Transmission Tuning by PPEI

2020 - 2022 GM 3.0L LM2 Duramax | Engine Tuning by PPEI