DURAMAX

2001-2004 LB7 Duramax (27)

2004.5-2005 LLY Duramax (34)

2006-2007 LLY/LBZ Duramax (34)

2007.5-2010 LMM Duramax (26)

2011-2016 LML Duramax (33)

2017-2019 L5P Duramax (6)

2020-2025 L5P Duramax (9)

2017-2022 L5D Duramax (3)

2020-2022 LM2 Duramax (5)

2016-2018 2.8L Duramax (6)

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

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

Regular price $316.24 USD

Regular price Sale price $316.24 USD
Unit price per
2006 - 2007 GM 6.6L LBZ Duramax | Engine Tuning by PPEI

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

Regular price $395.93 USD

Regular price Sale price $395.93 USD
Unit price per
2006 - 2007 GM 6.6L LBZ Duramax | Allison Transmission Tuning by PPEI

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

Regular price $316.24 USD

Regular price Sale price $316.24 USD
Unit price per
2004.5 - 2005 GM 6.6L LLY Duramax | Engine Tuning by PPEI

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

Regular price $395.93 USD

Regular price Sale price $395.93 USD
Unit price per
2004.5 - 2005 GM 6.6L LLY Duramax | Allison Transmission Tuning by PPEI

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

Regular price $316.24 USD

Regular price Sale price $316.24 USD
Unit price per
PPEI RTD

PPEI RTD

Regular price $230.00 USD

Regular price Sale price $230.00 USD
Unit price per
2001 - 2004 GM 6.6L LB7 Duramax | Allison Transmission Tuning by PPEI

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

Regular price $316.24 USD

Regular price Sale price $316.24 USD
Unit price per
EFI Live Autocal V3

EFI Live Autocal V3

Regular price $650.00 USD

Regular price Sale price $650.00 USD
Unit price per
2001 - 2004 GM 6.6L LB7 Duramax | Engine Tuning by PPEI

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

Regular price $395.93 USD

Regular price Sale price $395.93 USD
Unit price per

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Collection: DURAMAX

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

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

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

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

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

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

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

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

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

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

PPEI RTD

PPEI RTD

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

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

EFI Live Autocal V3

EFI Live Autocal V3

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

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