B58 Intercooler & Cooling System Yes, the B58 engine does have an intercooler. However, it is not the common intercooler setup you would see on most turbo vehicles. While most forced induction engines use "direct" air-to-air cooling, the B58 intercooler uses an "indirect" water-to-air cooling system. The B58 intercooler is integrated into the intake … [Read more...] about BMW B58 Intercooler & Heat Exchanger Upgrade Guide
B58 "Cold-Air" Intakes A lot of people cringe at the idea of a "cold-air" intake. Theory has it that a cold air intake has a bigger filter which lets in more particles which kills your engine life quicker. And that they don't offer that much of a performance benefit. The first part about engine lifespan is blah blah. Unless you have a super cheap filter, your engine … [Read more...] about BMW B58 Upgraded Performance Intake Guide
Max Boost on Stock Turbo BMW B58 While the phrase that something is "an art, not science" is used frequently, it does not hold true with turbo boost and tuning. Turbochargers, engine internals, and ancillarily engine support systems can only hold so much boost before they give in. We're here to answer some frequently asked questions on B58 boost levels:How much boost can … [Read more...] about BMW B58 Stock Turbo Max Boost
What is the BMW MPPSK Package? The BMW MPPSK package stands for the "M-Performance Power and Sound Kit". The kit is BMW-designed and manufactured and includes a more aggressive engine tune and a performance exhaust system to increase the performance, horsepower, and sound. The kit is only available for 40i models, featuring the B58 engine. What's included in the MPPSK … [Read more...] about BMW MPPSK Package: Performance Benefits & Is it Worth the Cost?
B58 MHD Flash Tunes Following our general MHD post, we will now go more in-depth on B58 MHD tunes and expected power gains. Scroll down a bit if you're only interested in the power gains. Otherwise, let's quickly discuss some basic MHD B58 tuning concepts.About B58 MHD Flash Tunes MHD offers OTS (off the shelf) flash tunes for the B58 engine. OTS tunes from MHD are … [Read more...] about BMW B58 MHD Tuning Guide – Info & HP Gains