On a mission to remove weight from my BMW 135i, I decided to swap out the front seats for something lighter. The stock seats are great, but bulky. I need…
After my Spec Stage 3+ clutch started to slip after only 5,000 miles at 691 wtq (at the wheels), I was forced to search for another new clutch. The Spec…
If you’re a diehard N54 enthusiast, you know that there are very few aftermarket intake manifolds available for us. Lucky for us, the Doc Race Intake Manifold is a great…
I tried MMP Stage 3 twin turbos, but never felt the “wow” factor I was hoping for. After worrying about wastegate rattle and smoking turbos for too long, I decided…
I finally strapped my 135i onto the dyno after fine-tuning the new single turbo setup and am thrilled with the results. I did a handful of pulls at various power…
I want to kick off this post with a reminder that I’m installing the Doc Race single turbo kit outside of the car on an engine stand. Part of the…
Walnut blasting is one of the most common maintenance tasks for the N54 engine to remove carbon buildup from the intake valves. Some shops or dealerships charge an arm and…