I've had it installed since the car was delivered, and it gives me a pleasant feeling of acceleration when driving around town and at high speeds.
The pleasant sound when you step on the accelerator is the best.
Also, the red accents in the engine compartment are a sight to behold.

I have installed other parts as well, and I am satisfied with all of them.
What to wear next...I enjoy thinking about it while wondering.

●Hyogo Prefecture J-san (Roadster/NDRF)