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The Build Log

Builds & guides.

Deep-dives, how-tos, and real builds from the shop — exhaust guides, engine breakdowns, DIY tips, and the data behind the power.

The Ultimate N52 + N51 Exhaust Guide
Latest
February 15, 2026

The Ultimate N52 + N51 Exhaust Guide

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BMW N52 Engine: The Last Great Naturally Aspirated Inline-Six
February 07, 2026

BMW N52 Engine: The Last Great Naturally Aspirated Inline-Six

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Tools for the BMW DIYer
January 05, 2026

Tools for the BMW DIYer

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How to 8HP Swap an E90 + E92
December 30, 2025

How to 8HP Swap an E90 + E92

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How to Make 500WHP on an N52
June 03, 2025

How to Make 500WHP on an N52

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Transforming the 2006 BMW 330i: A Supercharged Autocross Weapon
December 05, 2024

Transforming the 2006 BMW 330i: A Supercharged Autocross Weapon

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Retrofitting a 6HP21 into a 2006 330i
November 29, 2024

Retrofitting a 6HP21 into a 2006 330i

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Raimund's E90 330i Build
July 30, 2023

Raimund's E90 330i Build

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