r/CarHacking is a subreddit with 43k members. The community frequently discusses can bus, can, obd, obd2, and ecu, and they frequently recommend/review oscilloscope, scanner, and obd2 scanner, and the most common flair used is original project , can, cool project find, scan tool, and community.
Car Hacking - The ECU and protocols like CANbus have become the heart and brain of most modern cars, but it has also become a locked down black box. This is a place for people interested in taking back control of the car they bought. New age hot rodders, ECOmodders, Security researchers, the curious, the paranoid, and the tinkerers are all welcome. We encourage the use of open source solutions and tools like arduino and rasberry pi.
Popular Topics in r/CarHacking
#1
Can Bus
35 posts
#2
Can
16 posts
#3
Obd
8 posts
#4
Obd2
7 posts
#5
Ecu
6 posts
#6
Infotainment
4 posts
#7
Esp32
4 posts
#8
Ford
4 posts
#9
Xentry
4 posts
#10
Coding
3 posts
Products Discussed in r/CarHacking
Oscilloscope
3 reviews
#1
FNIRSI 1013D
4.0★ from 1 review
#2
Hantek
4.0★ from 1 review
#3
Siglent SDS1000X-E
5.0★ from 1 review
Scanner
2 reviews
#1
Tactrix
4.0★ from 1 review
#2
OBDLink
4.0★ from 1 review
Obd2 Scanner
2 reviews
#1
Tactrix
4.0★ from 1 review
#2
OBDLink
4.0★ from 1 review
Flair Used in r/CarHacking
#1
Original Project
: "Raspberry Pi streaming desktop to the head-unit through wired Carplay interface."
81 posts
#2
CAN
: "[update] I finally figured out how to emulate the AWD controller."
41 posts
#3
Cool Project Find
: "2016 Mercedes C300 (W205) broadcasts VIN in plaintext on CAN 0x071 — no UDS needed"
17 posts
#4
Scan Tool
: "CANgaroo v0.4.5 released – Linux CAN analyzer with real-time signal visualization (charts, gauges, text)"
14 posts
#5
Community
: "How I’ve been using topdon for diy diagnostics and light car hacking"
12 posts
#6
Tuning
: "How do ECU tool companies reverse engineer secure modern ECUs?"
6 posts
#7
Article/news
: "Torque Pro for Windows" on GitHub is an Info-Stealer Malware! Do Not Download!"
4 posts
#8
ELM327
: "Is this OBD reader good enough for personal use?"
4 posts
#9
Multiple
: "Car has a speed limiter, hoe to remove?"
4 posts
#10
Key Fob
: "Adding a new button to an old key fob?"
4 posts
Member Growth in r/CarHacking
Yearly
+11k members(34.8%)
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Last updated: June 17, 2026