EFI System Pro

I've just completed my first test drive with the Sniper2, and it went very well. I did the whole installation myself on a somewhat unusual car - a 1960 Austin Healey Sprite with a GM 3.4L (208 CID) V6. I studied all of the documentation in detail but still had questions pre-purchase and then from start to finish - the fuel supply, the wiring, the initial start up, and first test drive. Scott was excellent in answering all my email questions, typically in just a couple hours or less. I don't know how tech support goes with Holley itself, but there's no way I would have gotten the answers from them fast enough to get the test drive done today, before it snows tomorrow, the roads get salted, and the driving season is over. Highly recommend buying from EFI Systems Pro.

I recently worked with EFI System Pro regarding some persistent cold start issues on my Holley Sniper EFI system, and I couldn’t be happier with the experience. Scott, the technician who helped me, was incredibly knowledgeable, patient, and thorough. He quickly identified the root cause of the problem and walked me step-by-step through the adjustments needed for a smooth cold start. His explanations were clear and easy to follow, and he even provided tips to fine-tune my configuration for better overall performance. It’s rare these days to find a company that combines technical expertise with genuine customer care, but EFI System Pro and Scott delivered both. Highly recommend EFI System Pro—especially if you get the chance to work with Scott!

Anyone considering an EFI system should look no further than EFI System Pro. Pricing is right in line with all the major retailers, but what sets EFI System Pro apart is the second-to-none before and after sales support. My install went very well and I only had a few hiccups, this is in large part due to the pre-sale support I got from Chris. The minor issues I had afterwards were quickly taken care of because of the quick and correct responses I got when I needed a few questions answered after the install. I can't say enough good things about EFI System Pro, my experience with them has made the whole LS Swap/EFI conversion process the best mod I've ever done on any vehicle.

The only place to buy Holley EFI. Prices are good and the after sale support is UNMATCHED! Thanks for your help Scott!

The part I ordered for my Sniper EFI really made the car much easier to drive and actually exceeded my expectations in driveability. Needs to be included in every Sniper EFI installation.