Before installing this kit on my 2018 Civic Si Coupe, even with upgraded sway bars and end links, there used to be major body roll when turning aggressively or while cornering backroads, after installing this kit the play in the suspension quite literally disappeared, I can take a 90° turn at 80mph and the car doesn’t budge in a millimeter. Great product. Installation is difficultly was definitely a 10/10 have to drop both subframes to get to where the inserts go, but definitely worth the bruised knuckles.
Absolutely, the best Bang for your buck if you're looking to wake up your 11th gen civic Si. Even if you just use the base map that it comes with it's like a whole new car but if you use the TSP stage 1 tune it's like there is a demon inside your tiny little 1.5t engine. I am VERY impressed. I'm not a tech guy. So
I'll admit it was a little confusing. But the people at Two Step Performance are great and will help you out the entire way through. They have tutorial videos if you need(and I did). The only downside I have found is you might hit a lot of birds, because even they don't expect a civic to be this quick.
WONDERFUL FAINS FROM SUCH A LITTLE PUMP
The product works as intended. I think $85 out the door is a little pricy for what it is. But considering the OEM dip stick is such a pain to read, especially right after a fresh oil change, it was worth it and I will buy it again. But $85 out the door is on the high end. Any more expensive and I would have just dealt with the OEM dip stick.
