The Chevy Colorado 2.8L Duramax diesel engine is known for its fuel efficiency and torque, but some owners seek even more power and a cleaner look under the hood. This leads them to explore diesel delete kits. In this article, I’ll share my personal experience installing a Chevy Colorado 2.8 Diesel Delete Kit, including the challenges, results, and performance improvements. I’ll cover everything from choosing the right kit and tuner to the installation process and driving impressions after the delete.
Choosing the Right Delete Kit and Tuner
My journey began after ordering my ZR2 in December and receiving it in June. Anticipating its arrival, I pre-ordered all the necessary components, including a K&N filter, Provent 200 crankcase ventilation system, Rockblokz mud guards, and a full stainless delete exhaust from FloPro. Crucially, I also sourced an EFI Live Autocal V3 with a 75 hp tune and transmission tune from a reputable company in British Columbia, Canada. This entire package, including the tuner and tunes, cost around $1100, while the exhaust system was approximately $600.
The Installation Process
The exhaust removal was a 12-hour ordeal, requiring careful maneuvering and patience to avoid damaging any components. After successfully removing the factory exhaust, I laid out the new FloPro system and began reassembly. This process involved minor adjustments, including trimming some of the new tubing for a perfect fit. This required precise measurements and careful cuts using an angle grinder. One hanger above the rear axle needed shortening to prevent contact with the DSSV shock.
Before starting the physical installation, I loaded the tunes onto the Autocal V3, following the provided instructions and supplementing with online tutorials. This preemptive step allowed me to address any potential error codes or check engine lights beforehand. The tuning process went smoothly, and the truck started without any issues.
A minor hiccup occurred 24 hours later when I accidentally disconnected a fuel line, resulting in a fuel leak. After rectifying the issue, the truck fired up flawlessly, filling the garage with the distinct aroma of diesel and the subtle whine of the turbocharger.
Performance and Driving Impressions
Following the installation, the transformation was remarkable. The dreaded “dead pedal” or throttle lag was virtually eliminated. The truck felt significantly more responsive and powerful. The 75 hp tune, chosen for its balance of power and fuel economy, delivered on its promise.
The transmission tune, while subtle, provided smoother and more authoritative shifts. The stock shift points remained unchanged, as I retained the factory tires. The primary function of the transmission tune is to increase line pressure, ensuring the clutches can handle the increased power and torque.
Fuel Economy Results
Prior to the delete, I averaged 25-28 MPG in mixed driving conditions. After putting around 100 miles on the truck with the new setup, I observed an improvement to roughly 31-32 MPG in city driving. I will continue to monitor fuel economy on the highway and provide updates as more miles accumulate.
Conclusion
The Chevy Colorado 2.8 diesel delete kit, combined with a well-designed tune, significantly enhanced my truck’s performance and responsiveness. The installation process, while challenging, was ultimately rewarding. The initial fuel economy results are promising, suggesting potential long-term benefits. While this modification isn’t for everyone, it provides a viable option for Colorado owners seeking increased power and improved driving dynamics. Remember to consult local regulations regarding emissions compliance before undertaking a diesel delete.
