Late Model GM Performance

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.

10 hours ago

Washer Tank Relocation for Trailblazer SS

Louis D.

Verified owner

5/5

I changed to larger injectors, eliminated cold start, wanted fan on at lower temp, no vats and a few more specs. Everything was done correctly. Car runs well.

21 hours ago

1986-1993 Chevy Corvette Mail Order Tuning

Randy

Verified owner

5/5

Flash was everything i had hoped for.

22 hours ago

DOD/AFM and/or VVT Delete Tune (Gen 4 & Gen 5 Non Global B ECM)

Alex W.

Verified owner

5/5

Got my LQ4 swapped single cab with a cam tuned by PCM of NC and I couldn’t be happier! Truck runs amazing with lots of power, great shifts and super driveable. Super easy experience with very quick turn around time after submitting a log for review. Will definitely use them for any tuning needs in the future and would recommend them to anyone!

2 days ago

LSx LTx Truck & SUV Remote Tuning - HP Tuners - Gen III, Gen IV Gen V Full Size Truck & SUV V8 Email Tune File

Mark W.

Verified owner

5/5

2 days ago

1986-1993 Chevy Corvette Mail Order Tuning

LS Swap Tuning

Performance Parts

Electric Fan Kits

4l80e swap harnesses

Google Reviews

PCM of NC

4.7

Based on 261 reviews

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erik O.

4 weeks ago

Rob L.

1 month 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.

2 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

Top Products

6L80e to 4LXXe Swap Conversion Harness

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

1999–2002 Silverado, Sierra & Avalanche Dual Electric Fan Conversion Kit

Trailblazer/Envoy/Saab 5.3L/6.0L Spal Dual Fan Kit

VATS/Passlock Delete

HP Tuners Software MPVI4

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

DOD/AFM and/or VVT Delete Tune (Gen 4 & Gen 5 Non Global B ECM)

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