Engine & drivetrain

2026-06-09RoadsterImpression User

It clicks into place perfectly.

Regarding the installed parts, the quick shifter, based on online information from YouTube and other sources, I've considered user reviews such as "shifts click into place" and "shifting from 2nd to 3rd gear, which was previously difficult, has become easier." [...]

2026-06-05RoadsterImpression User

Radiator cap

Installed Parts: Sport Radiator Cap - Impression: I replaced it to stabilize the water temperature, as I also do track driving. It seems to have worked as intended, keeping the water temperature down. The only remaining issue is the pressure on the hoses... […]

2026-05-29RoadsterImpression User

The response has improved.

Installed parts: Sport clutch set, sport flywheel. Impression: I replaced it early to save on labor costs at approximately 31,000 km. For city driving, including in traffic, there are no negative impressions compared to the original. On winding roads... […]

2026-05-29RX-8Impression User

The best feel

Installed Parts: Fine-tuned Rebuilt Engine. Impression: When accelerating on the straight at Honjo Circuit, I felt a decrease in power compared to before, so I measured the compression. It was below the specified value. Although it doesn't affect city driving, I decided to replace it with an engine in mind for the future...

2026-05-26RoadsterImpression User

Stylish and comfortable to wear.

Custom-fitted parts: PUMA Speedcat PLUS driving shoes with AutoExe customization. A stylish shoe in a striking red color. Unlike previous PUMA Speedcat and Futurecat models...

2026-05-26RoadsterImpression User

Powerful sparks

Installed Parts: Sport Ignition Coils - Impression I replaced the ignition coils for the first time, along with the spark plugs (NGK RX) during my 11th year vehicle inspection. I took it for a test drive on the Metropolitan Expressway at night, and compared to when the car was new, the low-rpm power is noticeably stronger...

2026-05-26MAZDA3 / AxelaKotaro NISHIOKA

A simple but effective OEM+ upgrade.

Installed Part: Sports Radiator Cap - Impression: Installed on my Mazda 3 BP. Build quality feels premium & OEM-like. Coo […]

2026-05-22RoadsterKotaro NISHIOKA

A little accent in the engine bay

Installed Parts: Sport Radiator Cap Impression: I don't feel any difference in function or performance at all... (laughs) But just having AutoExe parts in the engine bay makes me personally happy (laughs). Aichi Prefecture [...]

2026-05-22RoadsterKotaro NISHIOKA

Refresh

Installed parts: Ignition coil, oil level gauge grip, battery clamp, radiator cap. Impression: Having exceeded 7 km, I replaced the ignition coil as part of a refresh. It also looks good... […]

2026-05-19MAZDA3 / AxelaKotaro NISHIOKA

Sports Ignition Coil

Installed Parts: Sport Ignition Coils Impression: I can really feel the increased torque at low speeds, so I'm glad I installed them. Miyagi Prefecture, Kuroshiba Vehicle: MAZDA3 Model: BPFP Grade: 20S

2026-05-19RoadsterImpression User

Click!

Installed Parts: Quick Shifter Impression This is a part I've been interested in for a while. The stock shift feel wasn't bad, but replacing it with a quick shifter gives it a much crisper feel. The stock shift feel was more geared towards a wider range of users... [...]

2026-05-19RoadsterImpression User

Looks great

Installed Part: Oil Filler Cap Impression: It makes a nice accent when you open the hood, and the machined aluminum cap has a high-quality feel; it's fantastic. I'm very satisfied with the high quality of AutoExe products. Gunma Prefecture […]

2026-05-19RoadsterImpression User

I wanted to know the pinnacle of internal combustion engines.

Installed parts: Fine-tuned rebuilt engine, air filter replacement, intake suction kit, sports clutch line. Impression: Initially, I planned to install a supercharger, but there was a problem with the CPU...

2026-05-15RX-8Impression User

Engine bay upgrade

Installed Parts: Hood Damper Impression I've been a member since 2024. Following my previous CX-30, I finally got my hands on a rotary-engined RX-8, so I've installed hood dampers on this one as well. Both originally had a steel rod on one side...

2026-05-15MAZDA3 / AxelaImpression User

Changes at low speeds

Installed Parts: Sport Ignition Coils - Impression After replacing the ignition coils with sport ignition coils, there was a noticeable change in the low-speed range. The hesitation during acceleration disappeared, and the throttle response became incredibly sharp. City driving became dramatically smoother and more enjoyable...

2026-05-15MAZDA2 / DemioImpression User

For engine protection

Installation Parts: Sport Oil Filter - Impression I installed this oil filter, which has improved filtration efficiency and a built-in magnet, hoping it would offer some protection to the engine during oil changes. Since it's not in a normally visible location, it's not easily visible from the outside... […]

2026-05-12RoadsterImpression User

Quick shifter

Installed Parts: Quick Shifter Impression Four years after purchasing the vehicle, I decided to buy the quick shifter the moment I operated it on the AutoExe demo car at a dealer exhibition. After installation, driving became fun again, and my Roadster […]

2026-05-12MAZDA3 / AxelaImpression User

BP-1

Installed parts: Street sports suspension kit, wheel nut set, air valve caps, strut tower bar, center floor bar, air filter replacement, oil level gauge grip, oil filler kit […]

2026-05-08RoadsterImpression User

Quick shifter & shift knob

Installed parts: • Quick shifter • Shift knob (stick shape) for MT Impressions: ■ Quick shifter The short stroke and crisp click make for a satisfying shifting experience. The only drawback is that it can be easily activated while driving. [...]

2026-05-08RoadsterImpression User

Quick shifter

Installed Parts: Quick Shifter MND6700 Impression I installed this because I prefer a shorter shift stroke than the stock one. I'm very satisfied with the result; it allows for a more natural wrist-flicking motion, giving me a greater sense of unity with the car. […]

2026-05-08RoadsterImpression User

Total drivetrain tuning

Installed parts: Fine-tuned rebuilt engine, sports thermostat, sports clutch set, sports flywheel, sports clutch line, quick shifter. Impression: Since taking delivery last July, I've spent nine months modifying it...