BMW M3 F80: Stage 2 on hybrid turbos
431 hp stock, 620 hp on pump fuel after hybrid turbos and a 3" exhaust. Here is what we changed and why.
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Tuning projects, build reports and technical guides, no marketing, no rounding in our favour.
Audi RS3 8V: 500+ hp from the five-cylinder EA855 EVO
A hybrid turbo, exhaust and fuelling. What actually limits the five-cylinder engine — and where the sensible line runs.
Read moreMercedes-AMG C63 S: Stage 2 on the M177
Hot-vee turbochargers, 700 hp, and the real question — what to do about the gearbox.
Read moreBMW M5 F90: 3.3" exhaust and Stage 1
The most underrated step on the S63B44 is the exhaust. We measured what downpipes give before any remap.
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