Buildjournal

Buildjournal Race on Sunday, Fix on Monday. Buildjournal is an independent enthusiast site dedicated to BMW motorsports, track go-ers and auto photographers.

As enthusiasts ourselves, we provide the BMW community with technical articles, product reviews, DIY guides, industry news also tons of photos and videos.

Pick 1. E92 M3 or G80 M3 or E46 M3.
03/25/2026

Pick 1. E92 M3 or G80 M3 or E46 M3.

02/18/2026

Small compilation of my S54 exhaust setup with 6 into 1 headers. All but the last clip is running ARH headers + Race Exhaust (resonated). The last clip is a custom header back exhaust from . If you want to hear more of the custom exhaust, just say it in the comments!

02/05/2026

ARH 6-into-1 headers on the E46 M3 focus on high-RPM power rather than low-end torque. Dyno testing showed significant top-end gains over stock and traditional header setups when paired with a proper tune, but with some torque loss below ~5,000 RPM. Build quality and sound are excellent, and the headers really shine on track where the S54 lives in the higher rev range. Best suited for drivers chasing peak power and performance, not low-RPM street torque. Thanks to european auto source for the dyno time.

02/04/2026

Not your typical S54 exhaust note.

I just redesigned our harness collars for builders chasing every last gram. Same function, less weight. Made from carbon...
02/03/2026

I just redesigned our harness collars for builders chasing every last gram. Same function, less weight. Made from carbon fiber–infused nylon instead of metal, these collars shed weight without sacrificing strength. If a part doesn’t need to be metal, why carry the extra weight?

Made for the “remove every unnecessary bolt” crowd. 🏁 Check it out on our website!

01/31/2026

E46 M3 vs E46 M3 at Buttonwillow CW13.

Back in 2022, when my E46 M3 was slowly transforming into a lightweight T/A monster.
01/27/2026

Back in 2022, when my E46 M3 was slowly transforming into a lightweight T/A monster.

About 6 months and counting since my last track day with the E46. Been too long.
12/24/2025

About 6 months and counting since my last track day with the E46. Been too long.

Got a chance to meet up with during his first shakedown ever. Seeing his car in person was awesome. Such a beast build....
03/27/2025

Got a chance to meet up with during his first shakedown ever. Seeing his car in person was awesome. Such a beast build. Although we were tired and wanted to load up after we decided to do a shoot together since our non-livery Alpine White builds were here on the same tarmac. Both machines running 18x11 ET25 on . Both are lightweight and absolutely stripped down as much as possible. Both running aero. Just both great examples of a lightweight BMW TA build. Now, just needs to keep his E36 Alpine White to make one epic E-chassis shoot.

2 seconds off my pace at Chuckwalla CCW for but good news is the car is running fine again. I was battling misfire issu...
03/25/2025

2 seconds off my pace at Chuckwalla CCW for but good news is the car is running fine again. I was battling misfire issues for the last 2 events and not exactly sure what fixed it, but it was either throttle pedal TPS, one of the 2 TPS from engine bay, clogged fuel filter, bad IAT sensor or O2 sensor. came through with the fix and now we're good!

📷: .m3

The plan was to take my E46 M3 to the all-new Buttonwillow Circuit for Round 2 for , but I wasn't able to fix it in time...
02/10/2025

The plan was to take my E46 M3 to the all-new Buttonwillow Circuit for Round 2 for , but I wasn't able to fix it in time so I made a last minute decision to take my E92 M3. Took it to @ for a last minute oil change, brake flush and trans top-off. After doing my first session, I quickly realized that's not enough to push it hard on track.

Although I'm on XTA coilovers, ML-10RT 18x10.5 ET22 on NT01 275/35/18, the brake department is where I was really limited. Stock calipers, pads and lines overheated real fast. It was hard to trust the car even on the first hot lap of each session because the brakes overheated after just a few corners. At one point in the 1st session, I thought I was going into the wall on T1. Dipped a tire in the dirt because I couldn't stop and then I just pulled off the track.

It was a fun experience, but a humbling one and made me realize how beast my E46 is. The .inc isn't all for looks! Happy to say I tracked this car finally. 📷: .m3

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