DiabloSport Modified PCM for 2021 Dodge Challenger 5.7L/6.4L HEMI (PCM-CHALV821)

The DiabloSport PCM-CHALV821 is a professionally unlocked, vehicle-programmed PCM for 2021 Dodge Challenger 5.7L and 6.4L HEMI models. It enables tuning with a compatible DiabloSport programmer, sold separately.

Overview

Factory PCMs on these vehicles are locked and block performance tuning. This modified PCM is designed to unlock tuning capability when paired with a compatible DiabloSport inTune i3 or Trinity T2 Platinum programmer.

Manufacturer-listed benefits with a DiabloSport tuner include 25–30 RWHP gains, sharper throttle response, and improved 8-speed transmission performance for quicker, smoother shifting.

Available adjustments include speedometer recalibration for larger tires and disabling MDS.

Save the vehicle's stock calibration with the tuning device before removing the factory PCM. Follow the included instructions for installation.

This modified PCM is not compatible with other tuning brands.

Features

• Professionally unlocked and programmed for your vehicle
• Compatible with DiabloSport tuning products
• Supports loading tunes with a compatible DiabloSport tuner, sold separately
• Manufacturer-stated 25–30 RWHP gains when paired with a DiabloSport tuner
• Sharper throttle response and improved 8-speed transmission performance
• Speedometer recalibration for larger tires
• MDS disable option
• Eliminates downtime for tuning

What's Included

• Modified PCM
• Instruction manual

Specifications

• Brand: DiabloSport
• Part number: PCM-CHALV821
• Fitment: Compatible with 2021 5.7L/6.4L Challenger
• Emissions: Legal under the provisions of EPA's Tampering Policy - Not legal in CA
• UPC: 810065212795

How Ordering Works

Enter your 17-digit VIN at checkout (and your PCM calibration ID if you have it). DiabloSport programs the replacement PCM to your vehicle before it ships, so it is ready to install. Not sure which kit your vehicle needs? Send us your VIN and we will confirm.

Frequently Asked Questions

Which vehicles does this modified PCM fit?

It is compatible with 2021 Dodge Challenger 5.7L and 6.4L HEMI models.

What else is required to load tunes?

A compatible DiabloSport tuner, such as an inTune i3 or Trinity T2 Platinum, is required and sold separately. Save the stock calibration with the tuner before removing the factory PCM.

What is the emissions status?

Legal under the provisions of EPA's Tampering Policy - Not legal in CA.

Emissions notice: not legal for sale or use in California or on any pollution-controlled vehicle where prohibited. Check your state's rules before ordering.

Fitment help: call 954-507-6261 or email sales@americanmuscleperformance.net with your VIN and we will confirm the right part before you order.