Shop By Product Matching "DiabloSport"
Choose a Model for your 1999 GMC
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- 2nd Generation Predator;CARB E.O. D-770 87 Octane/Economy Tune: HP Increase +15 HP And Increase Torque +28 lbs./ft.~Diablo Tune: HP Increase +21 HP And Torque Increase +34 lbs./ft.~Tow Tune: HP Increase +18 HP And Torque Increase +31 lbs./ft.~This Device Does NOT Accept Custom Tunes From CMR~For Custom Tuning - See The Predator Pro PN[7045]
- Predator P2 Performance Tuner; 2nd Generation Predator;
- Predator P2 Performance Tuner
-
Features:
- Simple
- Plug And Play Performance
- Customize Your Tune w/Predators Internal Adjustable Options
- Internet Updateable Using Free Ignition Update Software
- 5 Button Easy Navigation
- Full Color Screen
- Improved User Interface
- Lightning Fast Internet Update Software
- Read/Clear Diagnostic Codes
- Get ready for the ultimate performance upgrade for your GM Truck. Whether you have a Chevy Silverado or GMC Yukon or something in between, the Predator is going to ramp up the performance on your truck in a big way! Running the Predators performance tunes with 93 octane and you could see power gains of up to 30 Horsepower and 30 Ft/Lbs. of torque for your truck without even popping the hood. The Predators simple plug and play installation made it the longest-running legend in performance tuners. The Predator 2 comes pre-loaded with programs for 4.3L, 4.8L, 5.3L, 6.0L, 6.2L, and 8.1L GM Trucks and SUVs! Not only does it allow you to install performance programs, but you also get a large bank of adjustable options that are critical for your truck- options like re-programming your tire size, gear ratio, and even removing the top speed limiter!
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1999 - GMC K1500 | V | - | 8 Cyl 5.7L | 350 |
- 2nd Generation Predator;CARB E.O. D-770 87 Octane/Economy Tune: HP Increase +12 HP And Increase Torque +22 lbs./ft.~Diablo Tune: HP Increase +18 HP And Torque Increase +28 lbs./ft.~Tow Tune: HP Increase +15 HP And Torque Increase +25 lbs./ft.~This Device Does NOT Accept Custom Tunes From CMR~For Custom Tuning - See The Predator Pro PN[7045]
- Predator P2 Performance Tuner; 2nd Generation Predator;
- Predator P2 Performance Tuner
-
Features:
- Simple
- Plug And Play Performance
- Customize Your Tune w/Predators Internal Adjustable Options
- Internet Updateable Using Free Ignition Update Software
- 5 Button Easy Navigation
- Full Color Screen
- Improved User Interface
- Lightning Fast Internet Update Software
- Read/Clear Diagnostic Codes
- Get ready for the ultimate performance upgrade for your GM Truck. Whether you have a Chevy Silverado or GMC Yukon or something in between, the Predator is going to ramp up the performance on your truck in a big way! Running the Predators performance tunes with 93 octane and you could see power gains of up to 30 Horsepower and 30 Ft/Lbs. of torque for your truck without even popping the hood. The Predators simple plug and play installation made it the longest-running legend in performance tuners. The Predator 2 comes pre-loaded with programs for 4.3L, 4.8L, 5.3L, 6.0L, 6.2L, and 8.1L GM Trucks and SUVs! Not only does it allow you to install performance programs, but you also get a large bank of adjustable options that are critical for your truck- options like re-programming your tire size, gear ratio, and even removing the top speed limiter!
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1999 - GMC K1500 | V | - | 8 Cyl 5.0L | 305 |
- 2nd Generation Predator;CARB E.O. D-770 87 Octane/Economy Tune: HP Increase +10 HP And Increase Torque +16 lbs./ft.~Diablo Tune: HP Increase +16 HP And Torque Increase +22 lbs./ft.~Tow Tune: HP Increase +13 HP And Torque Increase +19 lbs./ft.~This Device Does NOT Accept Custom Tunes From CMR~For Custom Tuning - See The Predator Pro PN[7045]
- Predator P2 Performance Tuner; 2nd Generation Predator;
- Predator P2 Performance Tuner
-
Features:
- Simple
- Plug And Play Performance
- Customize Your Tune w/Predators Internal Adjustable Options
- Internet Updateable Using Free Ignition Update Software
- 5 Button Easy Navigation
- Full Color Screen
- Improved User Interface
- Lightning Fast Internet Update Software
- Read/Clear Diagnostic Codes
- Get ready for the ultimate performance upgrade for your GM Truck. Whether you have a Chevy Silverado or GMC Yukon or something in between, the Predator is going to ramp up the performance on your truck in a big way! Running the Predators performance tunes with 93 octane and you could see power gains of up to 30 Horsepower and 30 Ft/Lbs. of torque for your truck without even popping the hood. The Predators simple plug and play installation made it the longest-running legend in performance tuners. The Predator 2 comes pre-loaded with programs for 4.3L, 4.8L, 5.3L, 6.0L, 6.2L, and 8.1L GM Trucks and SUVs! Not only does it allow you to install performance programs, but you also get a large bank of adjustable options that are critical for your truck- options like re-programming your tire size, gear ratio, and even removing the top speed limiter!
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1999 - GMC Sierra 1500 | V | - | 8 Cyl 4.8L | 294 |
- 2nd Generation Predator;CARB E.O. D-770 87 Octane/Economy Tune: HP Increase +12 HP And Increase Torque +11 lbs./ft.~Diablo Tune: HP Increase +18 HP And Torque Increase +17 lbs./ft.~Tow Tune: HP Increase +15 HP And Torque Increase +14 lbs./ft.~This Device Does NOT Accept Custom Tunes From CMR~For Custom Tuning - See The Predator Pro PN[7045]
- Predator P2 Performance Tuner; 2nd Generation Predator;
- Predator P2 Performance Tuner
-
Features:
- Simple
- Plug And Play Performance
- Customize Your Tune w/Predators Internal Adjustable Options
- Internet Updateable Using Free Ignition Update Software
- 5 Button Easy Navigation
- Full Color Screen
- Improved User Interface
- Lightning Fast Internet Update Software
- Read/Clear Diagnostic Codes
- Get ready for the ultimate performance upgrade for your GM Truck. Whether you have a Chevy Silverado or GMC Yukon or something in between, the Predator is going to ramp up the performance on your truck in a big way! Running the Predators performance tunes with 93 octane and you could see power gains of up to 30 Horsepower and 30 Ft/Lbs. of torque for your truck without even popping the hood. The Predators simple plug and play installation made it the longest-running legend in performance tuners. The Predator 2 comes pre-loaded with programs for 4.3L, 4.8L, 5.3L, 6.0L, 6.2L, and 8.1L GM Trucks and SUVs! Not only does it allow you to install performance programs, but you also get a large bank of adjustable options that are critical for your truck- options like re-programming your tire size, gear ratio, and even removing the top speed limiter!
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1999 - GMC Sierra 2500 | V | 5328 | 8 Cyl 5.3L | 325 |
- 50 State Legal;CARB E.O. D-770 87 Octane: HP Increase +13 HP And Torque Increase +18 lbs./ft.~This Product Will Not Work On Hybrid Or E-Assist Vehicles
- Trinity T2 EX Performance Programmer; 50 State Legal;
- Trinity T2 EX Performance Programmer
-
Features:
- Full-Color High Resolution 5 In. Touch Screen
- Advanced Data Acquisition
- Up To +100HP/250 ft./lb. Torque On Diesel Apps.
- Up To +86HP/63 ft./lb. Torque On Gasoline Apps.
- Customizable Gauge Screen Layouts
- Swipe Left Or Right To Toggle Between Screens
- Custom Color Mixer
- One-Touch/Easy Menu Navigation
- Read/Clear Diagnostic Codes
- Internet Updateable
- In Cabin Display
- Full Re-Flash/Program Capability
- The Trinity 2 EX is hands down, the most feature-packed performance tuner, monitor, diagnostic and data logging device on the planet. The T2 has no peer in terms of wide vehicle coverage, 50 state compliant tuning, custom tuning capability, high-definition graphics, and premium quality. The original Trinity stood out in a market full of pretenders as it took on-dash monitoring and performance tuning to a new level. The T2 raises the bar again by including an industry-leading digital display, high-definition graphics, high-speed and yet simple user interface, and of course, legendary DiabloSport tuning. We understand that there are an increasing number of counties and states that are requiring emissions testing. Weve developed the T2 to include 50-State legal tuning covered by a CARB Executive Order number. Now there is no need to fear your SMOG testing center as you can pass those tests while tuned with Power You Can Feel from DiabloSport. You can run equipped with tunes for daily driving, towing and performance all while maintaining emissions compliance.*Options, features, and coverage may vary based on vehicle application
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1999 - GMC Sierra 2500 | V | 5328 | 8 Cyl 5.3L | 325 |
- 50 State Legal;CARB E.O. D-770 87 Octane: HP Increase +15 HP And Torque Increase +13 lbs./ft.~This Product Will Not Work On Hybrid Or E-Assist Vehicles
- Trinity T2 EX Performance Programmer; 50 State Legal;
- Trinity T2 EX Performance Programmer
-
Features:
- Full-Color High Resolution 5 In. Touch Screen
- Advanced Data Acquisition
- Up To +100HP/250 ft./lb. Torque On Diesel Apps.
- Up To +86HP/63 ft./lb. Torque On Gasoline Apps.
- Customizable Gauge Screen Layouts
- Swipe Left Or Right To Toggle Between Screens
- Custom Color Mixer
- One-Touch/Easy Menu Navigation
- Read/Clear Diagnostic Codes
- Internet Updateable
- In Cabin Display
- Full Re-Flash/Program Capability
- The Trinity 2 EX is hands down, the most feature-packed performance tuner, monitor, diagnostic and data logging device on the planet. The T2 has no peer in terms of wide vehicle coverage, 50 state compliant tuning, custom tuning capability, high-definition graphics, and premium quality. The original Trinity stood out in a market full of pretenders as it took on-dash monitoring and performance tuning to a new level. The T2 raises the bar again by including an industry-leading digital display, high-definition graphics, high-speed and yet simple user interface, and of course, legendary DiabloSport tuning. We understand that there are an increasing number of counties and states that are requiring emissions testing. Weve developed the T2 to include 50-State legal tuning covered by a CARB Executive Order number. Now there is no need to fear your SMOG testing center as you can pass those tests while tuned with Power You Can Feel from DiabloSport. You can run equipped with tunes for daily driving, towing and performance all while maintaining emissions compliance.*Options, features, and coverage may vary based on vehicle application
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1999 - GMC Sierra 1500 | V | - | 8 Cyl 4.8L | 294 |
- 3rd Generation inTune; 50-State Legal;CARB E.O. D-770 Performance Tune: HP Increase +20 HP And Torque Increase +25 lbs./ft.~87 Octane: HP Increase +13 HP And Torque Increase +18 lbs./ft.~This Device Does NOT Accept Custom Tunes From CMR
- inTune i3 Performance Programmer; 3rd Generation inTune; 50-State Legal;
- inTune i3 Performance Programmer
-
Features:
- Add Horsepower/Torque/Fuel Economy To Your Vehicle
- Features The Latest Generation ARM Processor
- Pre-loaded Tunes Are Dyno And Street Tested
- Perfect Way To Drop A Tune On Your Ride In Minutes
- Retrieves Diagnostic Data Of Your Vehicles Tune Performing
- Update Your i3 Software On Virtually Any Computer
- If you are a horsepower junky and you need a fix, look no further. Whether you have a Chrysler, Ford, or GM vehicle in your driveway, DiabloSports inTune i3 Performance Programmer delivers proven performance without even popping the hood! You get a performance tuning upgrade that makes your throttle more responsive, optimizes drivability, improves fuel economy potential, and increases horsepower & torque! The inTune i3 programmer is pre-loaded with dyno-tested performance programs designed specifically for your ride. We understand that there are an increasing number of counties and states that are requiring emissions testing. Weve developed the i3 to include 50-State legal tuning covered by a CARB Executive Order number. Now there is no need to fear your emissions testing center as you can pass those tests while tuned with 50-State legal DiabloSport tuners. Multiple Vehicle Licenses The inTune i3 can tune your whole driveway! With the i3s additional vehicle license options, you can tune multiple vehicles with one device. If your i3 is currently married to your Chevrolet Camaro, but you also want to tune your Silverado, upgrade your i3 with an additional license through our Ignition Update Software and you can be tuning both vehicles in no time. The additional i3 licenses can program any make or model that the i3 supports.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1999 - GMC Sierra 2500 | V | 5328 | 8 Cyl 5.3L | 325 |
- 3rd Generation inTune; 50-State Legal;CARB E.O. D-770 Performance Tune: HP Increase +20 HP And Torque Increase +22 lbs./ft.~87 Octane: HP Increase +15 HP And Torque Increase +13 lbs./ft.~This Device Does NOT Accept Custom Tunes From CMR
- inTune i3 Performance Programmer; 3rd Generation inTune; 50-State Legal;
- inTune i3 Performance Programmer
-
Features:
- Add Horsepower/Torque/Fuel Economy To Your Vehicle
- Features The Latest Generation ARM Processor
- Pre-loaded Tunes Are Dyno And Street Tested
- Perfect Way To Drop A Tune On Your Ride In Minutes
- Retrieves Diagnostic Data Of Your Vehicles Tune Performing
- Update Your i3 Software On Virtually Any Computer
- If you are a horsepower junky and you need a fix, look no further. Whether you have a Chrysler, Ford, or GM vehicle in your driveway, DiabloSports inTune i3 Performance Programmer delivers proven performance without even popping the hood! You get a performance tuning upgrade that makes your throttle more responsive, optimizes drivability, improves fuel economy potential, and increases horsepower & torque! The inTune i3 programmer is pre-loaded with dyno-tested performance programs designed specifically for your ride. We understand that there are an increasing number of counties and states that are requiring emissions testing. Weve developed the i3 to include 50-State legal tuning covered by a CARB Executive Order number. Now there is no need to fear your emissions testing center as you can pass those tests while tuned with 50-State legal DiabloSport tuners. Multiple Vehicle Licenses The inTune i3 can tune your whole driveway! With the i3s additional vehicle license options, you can tune multiple vehicles with one device. If your i3 is currently married to your Chevrolet Camaro, but you also want to tune your Silverado, upgrade your i3 with an additional license through our Ignition Update Software and you can be tuning both vehicles in no time. The additional i3 licenses can program any make or model that the i3 supports.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1999 - GMC Sierra 1500 | V | - | 8 Cyl 4.8L | 294 |
- Platinum Series; 5 in. Touch Screen;Intended For Race Use Only 87 Octane: HP Increase +13 HP And Torque Increase +18 lbs./ft.
- Trinity T2 EX Performance Programmer; Platinum Series; 5 in. Touch Screen;
- Trinity T2 EX Performance Programmer
-
Features:
- Full-Color High Resolution 5 In. Touch Screen
- Advanced Data Acquisition
- Up To +100HP/250 ft./lb. Torque On Diesel Apps.
- Up To +86HP/63 ft./lb. Torque On Gasoline Apps.
- Customizable Gauge Screen Layouts
- Swipe Left Or Right To Toggle Between Screens
- Custom Color Mixer
- One-Touch/Easy Menu Navigation
- Read/Clear Diagnostic Codes
- Internet Updateable
- In Cabin Display
- Full Re-Flash/Program Capability
- The all-new Trinity (T2) Platinum is the most advanced performance programmer and monitoring setup of its kind. Featuring a high resolution, 5 capacitive touch screen, full swipe functionality, industry-leading gauge designs, jaw dropping power potential and powerful, yet simple, user interface. The T2 is unlike anything else on the market. The Trinity T2 Platinum is designed for those who want the best of both worlds, pre-loaded, high-performance tunes in addition to custom tuning capability. The T2 Platinum is already equipped with some of the best tuning right out of the box, but we know our customers like to bolt-on upgrades and extract every bit of horsepower out of their vehicles. That is where CMR custom tuning comes in. Our nationwide network of CMR custom tuning dealers can build tunes for your specific ride on a dyno or by using the built-in data logging features of the Trinity. Now you can have great tunes for out of the box, and custom tunes, for when you take your ride to the next level with the Trinity T2 Platinum.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1999 - GMC Sierra 2500 | V | 5328 | 8 Cyl 5.3L | 325 |
- Platinum Series; 5 in. Touch Screen;Intended For Race Use Only 87 Octane: HP Increase +15 HP And Torque Increase +13 lbs./ft.
- Trinity T2 EX Performance Programmer; Platinum Series; 5 in. Touch Screen;
- Trinity T2 EX Performance Programmer
-
Features:
- Full-Color High Resolution 5 In. Touch Screen
- Advanced Data Acquisition
- Up To +100HP/250 ft./lb. Torque On Diesel Apps.
- Up To +86HP/63 ft./lb. Torque On Gasoline Apps.
- Customizable Gauge Screen Layouts
- Swipe Left Or Right To Toggle Between Screens
- Custom Color Mixer
- One-Touch/Easy Menu Navigation
- Read/Clear Diagnostic Codes
- Internet Updateable
- In Cabin Display
- Full Re-Flash/Program Capability
- The all-new Trinity (T2) Platinum is the most advanced performance programmer and monitoring setup of its kind. Featuring a high resolution, 5 capacitive touch screen, full swipe functionality, industry-leading gauge designs, jaw dropping power potential and powerful, yet simple, user interface. The T2 is unlike anything else on the market. The Trinity T2 Platinum is designed for those who want the best of both worlds, pre-loaded, high-performance tunes in addition to custom tuning capability. The T2 Platinum is already equipped with some of the best tuning right out of the box, but we know our customers like to bolt-on upgrades and extract every bit of horsepower out of their vehicles. That is where CMR custom tuning comes in. Our nationwide network of CMR custom tuning dealers can build tunes for your specific ride on a dyno or by using the built-in data logging features of the Trinity. Now you can have great tunes for out of the box, and custom tunes, for when you take your ride to the next level with the Trinity T2 Platinum.
Additional Fitment Information:
| Vehicle | Block | CC | Engine | CID |
|---|---|---|---|---|
| 1999 - GMC Sierra 1500 | V | - | 8 Cyl 4.8L | 294 |
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