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S4 Boost Gauge
O.CT S4 Stage 1
O.CT S4 Stage 2
O.CT S4 Stage 3
O.CT S4 Stage 4
O.CT S4 Stage 5 & 6

O.CT Performance for the B5 S4

S4 Stage 1

Take your S4 to a new level with a tuning chip from O.CT. Mega power and the signature O.CT torque curve.

S4 Stage 2

Add a Milltek catback exhaust to your O.CT chip and what do you get? Even more power!

O.CT S4 Boost Gauge

Co-developed by O.CT & Stratmosphere the most unique product introduced this year.

Starting at $795

 

Up another notch here

 

Industry breakthrough!

 

S4 Stage 3

O.CT Stage 3 matches the Milltek turbo-back exhaust with custom tuning. 391 lb-ft of torque that just keeps pulling.
S4 Stage 4

Monsterous torque of nearly 400 lb-ft that is as long and flat as the OEM torque curve.
S4 Stage 5 & 6

Even more power than Stage 4? Yes it's true. Watch this space later this month.

Click here for 332hp

Click for proof! Click for Mega power
 



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