Ktuner is the way to go. Really happy with the quality of the display unit. The metal casing is so much more solid than plastic!

I would certainly recommend this tuner for anyone that is looking to find a easy to use and feature packed, easy to use tuner. The revhang delete is a major difference, and the car just feels woken up and more quick even in daily driving. The tune however was not too much/uncomfortable for daily driving even in sport mode, which I found surprising. Works great with tuner view on the headunit after honda hack. I had an issue while flashing the first time where the flash would stop after about 15% completion and leave my ecu in a suspended state. I fixed this after calling ktuner which was very quick to answer and hooked a battery charger up to my battery to maintain a stable battery voltage while flashing. Even with this issue, all of the good things about this tuner definitely outweigh all negatives I have experienced.

I ordered a downpipe for my grandson for Christmas. I know that he’ll be very happy, and as an old woman, I cannot speak anything about the product. HOWEVER, I am writing this because I want to applaud TSP’s Customer Service, specifically Daniel. My order was backordered, and Daniel kept me informed all the way, responding promptly and helpfully to my every question. Thank you, Daniel, for everything. You are a credit to your company!😊

Honestly very easy to get it going and really does make a difference in power. Highly recommend it.

Muy contento con la conversión.fácil y buena

It sounds good with my exhaust setup. Pretty quick too

Amazing quality, I purchased this product with a ktuner v1.2 and TSP stage 1 tune and the car moves now! Really fast shipping, two days as promised. Awesome service and I will continue to buy from TSP in the future!

I love this tune! I was going to get the 1+ but chickened out in fear of my stock clutch. Clutch slips below 4k rpm in third gear on map 3 sport mode. I do get some pretty loud pops every once in a while even while cruising. I have a muffler and resonator delete so that might help amplify the volume of the pops. As soon as I flashed the tune and started the car, it sounded happier/freer if you know what I mean. The shipping was insanely fast, 2 days as promised. Overall, it was a quality experience and will continue to buy from TSP in the future.

RS Series Coilovers

Doing wonders for my 10th gen Civic Si. Really is an amazing difference in every gear.
Running TSP Stage1+
Does take a bit to setup though, especially if your PC doesn’t have high power USB to run the Ktuner and if you’ve never used one before, like me. Lots to figure out.
The flashing went smooth enough though and no issues or lights with the tune.
Overall, TSP had the best deal and fastest shipping I could find. Looking forward to more upgrades.

That’s Maf is the best buck for you built a must need to get higher HP and better air induction.

I’m glad this is something I can purchase. I never really used it but it gives me a piece of mind knowing I will receive an item I spent hundreds or thousands on.

Looks good

This is a great exhaust if you're not looking to be very loud. Lighter than OEM. Dyno run published by an outside company showed no drop in power throughout the curve. What little drone there is does not bother me, or I don't really notice it (disclaimer, I am have a 62A RMM). It just sounds great without having to worry about upsetting the neighbors

Great tune. Pulled harder than the original stage 1 tune. Helped improve my lap times. At Palmer, running in third gear in the upper rpm range most of the time, and this is where I felt the improvement.