J.R. Jones Racing

2014-2018 Chevy Silverado / Sierra 5.3 6.2L Chopacabra Cam Tune File | Texas Speed Chopacabra Pre-Written Tune (HP Tuners / EFI Live Required .hpt .ctz)

$289.99 USD

Oferta Agotado

Other Mods Cam Only Tune W/ Long Tube Headers W/ TQ Converter W/ Long Tube Headers and TQ Converter

📦 How delivery works

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Get the file now — set it up yourself I send the base tune file right away. You compare it against your current file and copy your settings over.

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I do it for you Send me your factory read file and I'll build your tune. Allow 24–72 hrs — I work weekdays full-time; weekends I'm still at it, just not all day.

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Texas Speed Chopacabra Tune File

2014-2018 GM LS Chopacabra Cam Tune File

Built specifically for the Texas Speed Chopacabra camshaft, this pre-written tune file is designed for 2014-2018 GM LS vehicles running 4.3, 5.3, and 6.2 combinations. This file is built to help deliver the aggressive idle people want from the Chopacabra while improving startup, idle quality, throttle response, and overall drivability. Send in your stock read file and mod list, and we'll build your tune around your exact setup.

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Texas Speed Chopacabra Cam Tune Built specifically for Chopacabra cam setups needing proper idle control, startup tuning, and street drivability.

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Pre-Written Performance File Designed around real-world Chopacabra combinations with common supporting mods like headers, intake upgrades, DOD/AFM delete parts, and converters.

Built Specifically For

Texas Speed Chopacabra camshaft setups
2014-2018 GM truck and SUV platforms
4.3L LV3, 5.3L L83, and 6.2L L86 combinations
Street-driven builds wanting a strong idle and better drivability
Common supporting mods like headers, intake upgrades, injectors, converter changes, and DOD/AFM delete setups

What's Included

Cold start and hot start improvements
Idle airflow, fueling, and spark adjustments for Chopacabra behavior
Smoother throttle response and drivability tuning
Up to 3 revisions if your combination needs follow-up changes
Requires HP Tuners MPVI2, MPVI3, or MPVI4 hardware and credits for flashing

How It Works - HP Tuners File Required

After purchase, email your HP Tuners factory read file to tunes@jrjonesracing.com
Include your order number and full mod list - cam, injectors, headers, intake, converter, gear ratio, tire size, DOD/AFM delete parts, and anything else relevant
Most tune files are returned quickly, but revised files may take up to 24 hours depending on workload
You receive your tuned file by email, ready to flash with HP Tuners

Flashing & Safety Notice

Flashing your PCM can be dangerous if not done properly. Follow these steps to help avoid PCM or ECU damage:

Never flash over Bluetooth or Wi-Fi - always use a hard-wired connection
Connect a battery charger to maintain stable voltage during the write process
Do not interrupt the flashing process once writing has started

J.R. Jones Automotive & Performance is not liable for any PCM or ECU damage caused by improper flashing, unstable voltage, or unsafe tuning practices.

Compatible Vehicles - 2014-2018 GM Platforms ›

2014-2018 Chevrolet Silverado 1500
2014-2018 GMC Sierra 1500
2015-2018 Chevrolet Silverado 2500HD / 3500HD 6.0L
2015-2018 GMC Sierra 2500HD / 3500HD 6.0L
2015-2018 Chevrolet Tahoe
2015-2018 GMC Yukon
2015-2018 Chevrolet Suburban
2015-2018 Cadillac Escalade
2014-2018 Chevrolet Silverado 4.3L LV3
2014-2018 Chevrolet Silverado 5.3L L83
2014-2018 GMC Sierra 5.3L L83
2014-2018 Chevrolet Silverado 6.2L L86
2014-2018 GMC Sierra 6.2L L86
Other 2014-2018 GM applications using HP Tuners

Need help sending your tune file?
Watch our step-by-step video on how to read your stock file using HP Tuners and email it for calibration.

▶ Watch How-To Video