r/CarHacking is a subreddit with 50k 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 , community, scan tool, can, and cool project find.
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
: "Macchina A0, upgraded for 2026: Dual CAN FD + Wi-Fi 6 + BLE + USB-C"
30 posts
#2
Community
: "Sensors"
12 posts
#3
Scan Tool
: "Vcds Software"
12 posts
#4
CAN
: "Bench testing a new CAN chip (TCAN3414DR) with Opus 5, the future is wild"
10 posts
#5
Cool Project Find
: "Free CarPlay activation & full-screen for Audi, Porsche, Lamborghini, and VW! 🚗"
4 posts
#6
Tuning
: "A2L for Polo 1.2 tsi ea111 cbzb"
3 posts
#7
Article/news
: "New CAN Bus - The Ultimate Guide PDF (2026 revision)"
1 post
#8
ISO 9141
: "Building a dyno that runs off a phone and an OBD adapter what it look like on my NB with new headers + borla exhaust"
1 post
#9
ELM327
: "Where to find documented OEM Mode 22 DIDs, and is ESP32 viable for production-grade OBD logging?"
1 post
#10
Multiple
: "Cafd for l7 entry disappears after re-reading SVT"
1 post
Member Growth in r/CarHacking
Yearly
+16k members(46.6%)
About
GummySearch helps people research Reddit communities by organizing activity, growth, themes, and post-level signals into one place.
This page gives a focused view of r/CarHacking, including current member size, discussion patterns, product reviews, and related communities to explore.
This data is synced periodically so insights stay current and useful for ongoing research.
Last updated: September 22, 2026