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Weistec W.3 Turbo Upgrade BMW M5 / M6 / X5M / X6M (S63 - 11-17')
$5,999.99
The Weistec BMW S63tu W.3 Turbo Upgrade unlocks the true potential of the 4.4L Twin Turbo V8 engine. Power gains are substantial, especially in the top end.The factory turbocharges are disassembled and fully inspected. The...
Weistec W.4 Turbo Upgrade BMW M5 / M6 / X5M / X6M (S63 - 11-17')
$15,799.99
The BMW S63 W.4 Turbochargers are complete, bolt on replacements for the stock turbochargers. There are no core charges with these turbos. No need to send in your stock turbos to get modified while your...