Based on 1561 reviews

Great improvement. Car feels more alive than it did with the previous tune

Really Good Tune

I ran the TSP Stage 1 for 1-2 years (always on map 3/in sport mode 90% of the time) with no problems. Naturally, I had to give this a try and love how much smoother it is. Unfortunately at over 6,000 feet of altitude the factory turbo can’t throw more than 21psi so the original stage one actually felt a little quicker, but I’m sticking with the one plus anyway. Something to consider if you live at a higher altitude. Still 5 stars because the tune is great and TSP definitely isn’t at fault for the limitations of the factory turbo.

Ktuner v1.2

Awesome product! Loaded a base tune and my car is very quick. A must have.

Stage 1 to Stage One+ UPGRADE for the 2017+ Si (Existing Stage 1 Owners Only)

You need these bushings

These shifter bushings will take a short time to break in, but once they have been broken in each shift feels so crisp. Install was pretty easy. I strongly recommend these for your car

Good tune

Tune pulls very hard and smooth , you really feel the push of the torque when you go full throttle.

Best Customer Service

Best customer service! Keep it up TSP!

Absolutely incredible!!

I ran the stage 1 tune for over two years and it was an amazing tune. This stage 1 plus is so much better. The car drives a lot smoother and I highly recommend this tune with the race maf intake.

Tsp stage 1+

So much better than the original tsp stage 1. Way more midrange and top end and very smooth drivability.

Love it better drive Experience

My car previously to add the tune I have the ktuner
Upgrade Intercooler cold air intake cobra and was already fast with this tsp tune is faster not to much but love Honda’s any way always been my favorite car in the world. Thank you for the tune

KTuner 2.0 & TSP Tune

This was probably the best purchase I’ve made for my Civic. With the TSP tune it feels like a completely different car, and is way more fun to drive. The KTuner version 2 has also been stellar! I’m able to display just about anything I want in real time and I absolutely love it. Can’t say enough about the support from TSP they responded quick and with great information anytime I needed anything. The whole transaction has been a breeze from start to finish. You guys have a customer for life, thanks TSP!

Worth the purchase.

Overall very satisfied with the purchase of the KTuner. If your in the market for a tuner why not purchase one where you get a tune for free!! Overall good performance addition for my 19' Civic SI

Awesome radar

Great radar, barely any false alerts

Great product

Feels and sounds amazing. Install went well, and another upgrade in the books thanks to TSP. Only downside was I had to reuse the bolts for the mounting bracket, since they didn’t come with replacements.

Good tune

I feel the power 100% and i love it

Looks Great, works better

Top Quality


Great quality, easy install. Highly recommend

It speaks for itself

Bought these back in January when it was on backorder, was shipped as it was back in stock. Customer service through the emails were very helpful. Easy to install, the stock bulbs need to be removed completely and the male/female connectors fits as it should. Turn signals came on no problem.

Baffled Oil Catch Can PCV Side for 2018+ Honda Accord 2.0T

2017 Civic reverse tail light tints.

My order came in on time perfectly, the tints were beyond easy to put on and they looks amazing. I went with the smoked bio-hex by JetsVinyl and absolutely love how it looks with the other matching bio-hex stuff i have outside and inside my civic.

PRL Cobra Cold Air Intake - SI street

Delivery was quick and package was non-damaged. Followed the install provided by PRL on civicx and install was seamless (about 2 hours alone). Upgrade is definitely what was needed to wake the car up!

Great product

It’s a really good product. Seems to be made from 3m vinyl so pretty high quality. Would definitely recommend. Also the pieces are a bit oversized for easy application so that’s a plus!