CTS Turbo BOSS800 Hybrid Turbocharger Upgrade for B9 Audi S4, Audi S5, Audi SQ5

Turbocharger specs:

• 66mm turbo inlet, larger turbo inlet is required
• 66mm 7+7 design billet compressor wheel
• 63mm 9 blade high-flow turbine wheel
• Stainless steel exhaust housing, matched to increased flow of the turbine wheel
• Heavy duty bearings and thrust washers
• VSR balanced
• Compatible with any exhaust, any charge pipe, and 66mm turbo inlet
• Transfer of factory diverter valve and boost pressure relief valve (06M133554A, pay attention on how it is installed).

**Note that these results were achieved in a vehicle with full bolt-ons and upgraded fueling system (RS6 injectors, HPFP and LPFP upgrade, 4BAR Map sensors) and Logic Street Performance stage 3 tuning. Your result may vary.

Parts required for installation (not included):

• 2x 06M253039G – exhaust manifold gasket
• 1x 059253232C – exhaust ring gasket
• 1x WHT006901A – oil feed o-ring
• 3x WHT007689 – oil feed and coolant o-ring
• 4x WHT004982 – barrel nut
• 4x N91130801 – exhaust nut
• 1x WHT007923 – connecting pipe o-ring
• 2x 8K0253115K – exhaust gasket
• 1x N0138441 – seal for boost pressure relief (jet) valve