Late Model GM Performance

Fuel consumption is noticeably more. I chose level 2 torque management and towing 87 octane. No issues with the pcm. Throttle response hyper responsive.

3 hours ago

GMC Envoy 4.2L I6 Mail Order Tune

Kory S.

Verified owner

5/5

The tune is running phenomenal.

3 days ago

Gen V V8 GM Full Size Truck & SUV Tuning E92 2014-2020

Sean

Verified owner

5/5

6 days ago

1986-1993 Camaro/Firebird V8 Mail Order Tuning

Greg G.

Verified owner

5/5

Have not had a chance to install this yet but it looks great and will make life easy.

2 weeks ago

Trailblazer/GMT 360 V8 Three Relay LS1 Fan Conversion Harness

Greg G.

Verified owner

5/5

Easy installation and looks a thousand times better than the giant stock reservoir. It would be nice if it were easier to fill and held a bit more. But it’s fine for a weekend warrior vehicle.

2 weeks ago

Washer Tank Relocation for Trailblazer SS

LS Swap Tuning

Performance Parts

Electric Fan Kits

4l80e swap harnesses

Google Reviews

PCM of NC

4.7

Based on 261 reviews

review us on

erik O.

1 month ago

Rob L.

2 months ago

PCM Tune of NC did an amazing job tuning my 2015 GMC Sierra 1500 SLT 5.3L V8. The removed the 100mph limiter, turned off the V4/V8 flex option keeping all (8) cylinders running all the time, updated my tire size in the system to fix the shifting points greatly improving the driving experience with the larger tires, updated the system to accommodate a cold air intake I installed, and lastly worked their magic to get another 20hp out of the motor now tuned to 93 octane gas. It drives better than new with more power even with the much larger 33x12.5 tires! I'd highly recommend Kelly and the Team!

Aaron A.

2 months ago

Best in the business!

Riley R.

2 months ago

It’s been great working with these guys 10/10 recommend, very helpful

sebeans

2 months ago

I recently ordered a mail PROM chip for my 87 Corvette with aftermarket heads and headers. Mark was incredibly helpful throughout the entire process of ordering to installing the chip! On top of that, I accidentally got my broadcast code wrong and the fixed it quickly without issues after I brought it up to them! All in all the process was made easy and fast due to PCMofNC’s excellent customer service! The mail order tune also woke my car up! 5 stars from me!

tobey J.

3 months ago

I highly recommend these guys. Very friendly very patient highly knowledgeable best remote tune out there. They’ve been a pleasure to work with. Don’t waste your money and go with the best guys in the beginning

Bill

3 months ago

Recently upgraded the Cam and heads on my LS1. Reached out with questions about injector sizing before beginning the build and they were able to point me in the right direction. Sent the ECU off on a Monday and received it back on Wednesday. I'd installed a stage 4 camshaft and the car still had a little issues but they were able to assist me in getting them a data log and had a tune file that corrected the issue back to me the next day. Very approachable people that I spoke with, which is nice considering I am a novice at tuning and using HP Tuners.

Christian

4 months ago

All i gotta say is WOW! Amazing customer service! I got my 2012 colorado tuned beginning of 2026, instantly improved almost everything in the way of driving/ power Nd shifting. They walked me thru everything, their website is simple and the order sheet is easy. My speedometer was off by around 4-8 mph cause of aftermarket tire size and they had me send back everything, retuned it and got it spot on for free! Kelly is who i was talking with, kudos to you! Amazing service! Thank you for everything!

Salman K.

4 months ago

These guys are the best. They are very knowledgeable and responses are very fast, not like your traditional online tuners that needs 48 hrs or so.

I reached out to 10 different online tuners for my Porsche 911 996 ls3 swap and none bothered to reach back out even though they requested an email with all the info. I reached out to PCM and in 30 mins my base tune was ready. These guys even went out of their way and gave me already flashed ECU and took mine since it required a bench flash. This is all happening on Friday and 10 min before their closing time. That tells a lot about a business and how they treat their customer.

I would never go anywhere else. These guys are my go to tuners.

Late Model GM Performance

Mail Order Tuning

Dyno Tuning

Laser Cutting

Tuned Port Injection Tuning

GM Remote Tuning, Dyno Tuning & Performance Parts

On Site Tuning

Mail Order, Email and Remote Tuning

Real Customers. Real Builds.

LS Swap Tuning

Performance Parts

Electric Fan Kits

4l80e swap harnesses

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6L80e to 4LXXe Swap Conversion Harness

4l80e Swap Harness (4l60/70 to 4l80e)

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VATS/Passlock Delete

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HP Tuners LS Swap or LT Swap Remote Tuning – LS or LT Powered Hot Rod

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