The top 4 turbo brands enthusiasts actually trust for the EM1 (1999-2000) Honda Civic Si — ranked by community reputation and fitment reliability.
1999-2000 Honda Civic Si · Turbo
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Hondata
Hondata's turbo kits and ECU tuning are the community standard for EJ1/EM1 Civics, with proven reliability and extensive support across enthusiast forums dedicated to this generation.
Sold direct through Hondata's own site and authorized dealers.
Hasport
Hasport engine mounts and turbo mounting solutions are widely trusted by EJ1/EM1 builders for proper fitment and durability in forced induction setups on this chassis.
Sold direct through Hasport's own site and select authorized distributors.
Spoon Sports
Spoon's turbo components and internal upgrades have strong reputation among serious EJ1/EM1 builders for quality and fitment precision on Honda's B-series platform.
Turbonetics
Turbonetics turbocharger kits were popular in the late 90s/early 2000s tuning scene for B-series engines and remain a recognized option for this generation Civic-Si.
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