Upgrade your longitudinal 1.8T with this complete K04 turbocharger and Ajusa sealing hardware bundle.
EFR delivers quick boost response, powerful performance and reliable durability - 0.80 A/R, T4 Twin Flow Flange, 49mm Compressor Inducer Dia, 62mm Compressor Wheel O.D., 58mm Turbine Wheel O.D.
*To be used with custom turbocharger applications only - T4 flange manifold, custom fueling, tuning/software, and internals necessary*
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
11-04-2026
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Applies pressure to the tensioning roller
10X Entries Into Our F80 M3 Sweepstakes
For vehicles with AEB or ATW engine codes only.
Includes a $250 refundable core charge
For vehicles with 120A alternator with VIN from 3B-X-150 001 only, split is in the 1999 model year. Check existing amperage listed on back of alternator.
This product was last offered at the strikethrough price on
08-31-2026
Includes a $100 refundable core charge
For vehicles with AEB engine code only.
Price includes $1750 refundable core charge
For vehicles with AWM engine code, with automatic transmission only.
This product was last offered at the strikethrough price on
11-03-2026
Includes a $800 refundable core charge
For vehicles with AEB engine code only.
This product was last offered at the strikethrough price on
08-03-2026
Senses low engine oil pressure
For vehicles with VIN up to 3B-X-491,580, split is in the 1999 model year
Replacement fuel tank cap for your vehicle. Tether not included.
Mounted on the intake manifold
For vehicles with VIN from 3B-3-347 401 or VIN 3B-3E318 301 only, split is in the 2003 model year.
With an integrated oil separator
We Price Match - Give Us A Call or Chat!
For vehicles with AUG or AWM engine codes only.
Prevent overheating and premature engine wear. Includes O-ring
Full synthetic oil with fluorescent, friction-reducing additive!
10X Entries Into Our F80 M3 Sweepstakes
We Price Match - Give Us A Call or Chat!
MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.
This product was last offered at the strikethrough price on
05-14-2026