O.CT S4 Stage 5 & 6

O.CT S4 Stages 5 and 6 (below)

Unprecedented sophistication and torque from this ground-breaking kit. Brings your to a whopping 420 lb/ft of flat torque as early as 2,500RPM. Check our competition and see how early their torque is available. Our engineering makes this simply the most drivable and useable bullet on the road.

The most impressive kit on the market and actually delivers on the street (not just on the dyno). In addition to Stage 4 we add new fuel and air delivery components and then lower the compression on your motor to increase boost levels. Our dyno results speak for themselves. We encourage you to compare carefully. Click here or the thumbnail image on the left for large dyno graph.

Included with Stage 5:

	Stage 5 O.CT software
	Custom modified O.CT KKK K04 turbos (early-torque option)
	Kit to install turbos
	Spark plugs matched to O.CT tuning
	O.CT spec fuel injectors
	Head gaskets and bolts (to lower compression)
	RS-4 fuel pump, intake, airbox and mass airflow sensor assembly
	Silicone high-pressure induction hose kit
	Milltek 3" catback exhaust (SuperDual optional, $146 upgrade)
	One pair HyperBoost valves
	One K&N filter
	One throttle body boot
	5-bar fuel pressure regulator
	Milltek downpipes with German-made platinum-coated stainless cats

More on pricing:

	Pricing is $13,054 for everything listed above.
	Pricing is $4,423 to step up to O.CT Stage 5 if you already have O.CT Stage 4.

Beyond Stage 5, Stage 6 adds custom software, custom modified O.CT RS-4 intercoolers, a custom O.CT RS-4 oil cooler and the Stratmosphere ultra high performance clutch and flywheel assembly. We have our normal dyno chart for you to see as well as an actual dyno chart from our USA-spec 2001 S4 Avant. You will see that the actual dyno chart outperforms our regular claimed dyno chart. Click here or the thumbnail image on the left for large dyno graph or here for the actual dyno result on one of our S4s..Why is this? Because as a rule, we UNDER claim our results so that you can be sure to obtain the results we promise if you dyno your own vehicle later.

Included with Stage 6:

	Stage 6 O.CT software
	Custom modified O.CT KKK K04 turbos (early-torque option)
	Kit to install turbos
	Spark plugs matched to O.CT tuning
	O.CT spec fuel injectors
	Head gaskets and bolts (to lower compression)
	RS-4 fuel pump, intake, airbox and mass airflow sensor assembly
	O.CT custom modified (perfect-fit) RS-4 intercooler kit
	RS-4 oil cooler
	Stratmosphere Stage II clutch (rated to 500 lb-ft)
	High performance Dual-Mass flywheel
	Silicone high-pressure induction hose kit
	Milltek 3" catback exhaust (SuperDual optional, $146 upgrade)
	One pair HyperBoost valves
	One K&N filter
	One throttle body boot
	5-bar fuel pressure regulator
	Milltek downpipes with German-made platinum-coated stainless cats