Chips don't work and could cause electrical issues I personally used this chip for 6 months now and have driven close to 5000 miles with it. They do not do anything at all to your vehicle and could cause electrical issues like what happened to my 2010 Ford F-150. I did some more research and it looks like they have two reviews blogs that they own, one to help give positive reviews to their chips and one to give bad reviews to competing chips. I am not saying that you shouldn't buy from them, I am just saying that you should do a little more research before you spend your hard earned money on something that could harm you car. Tried to contact them 2 weeks in and they kept giving me the run around then they said they couldn't help me or give me a refund, its a shame, I really wanted to like this company and their chips.

Tundra +JDM stage 3 performance chip I purchased the JDM stage 3 performance chip for my 2018 tundra Crewmax After only 2 days i was noticing faster and smoother shifts with a slightly quicker acceleration. I can't wait to tow my boat and see how it acts. The chip is easy to install and works well along my k&n intake and flowmaster exhaust.

Great Product, Great Service I bought a stage 2 chip, and though it was a significant power increase, it caused some surprise redline downshifts with my transmission when letting off the gas after full throttle. Contacted customer service who were very helpful. Replaced it with their JDM stage 3 chip and it is performing flawlessly. My Crown Victoria is now positively FEISTY!!!

2006 Dodge Ram 4.7 I wread up on the JDM stage 3 a few months ago, an, actually put headers on my truck like days before the device arrived. I'm running 22x12 on 33's so acceleration/ power has always been a must! The thing bleeps every 10 seconds like a alarm system, but, my Dodge came alive within the hour of plugging it in. I love it, and won't drive far without it ever again.

2008 Ford Crown Victoria P71 Police… 2008 Ford Crown Victoria P71 Police Interceptor 4.6l. Factory dual exhaust which I removed factory muffler and installed 2 FlowMaster single chamber mufflers along with a K&N filter in factory box( since that truely pulls cold air from outside engine compartment). These vehicles come from Ford with high performance tweaks already. I installed the Stage 1 Performance Chip and within about 150 miles I noticed much crisper throttle response and firmer shifting! Along with an Awesome WOT!! Ive tried other performance chips and IAT splice in chips but nothing compares to this simple plug and play chip, best $100 you can spend to "wake up" this 4.6l ! I just upgraded to the Stage 2 Chip and will post a review after a few miles. I am a gear head and have been wrenching for 40 yrs. Living in California I just wanted this car to get out of its own way and Performance Chip answers that problem. I do own and build hot rods/muscle cars. This P71 is a shop car/parts runner.