Depends on your skill level you could do a lot of things. K04 turbo. New intake, intercooler. Or do an audi tt 1.8 intake manifold that puts the throttle body on the driver side, run dual side mount intercoolers like a 2.7t for a bit of a sleeper set up. New pancake pipe going into factory side mount, silicone turbo inlet tubing. The ECS conversion plate is secured to the valve cover using 8 stainless steel allen head bolts that sit flush into the plate when installed giving it a seamless look. The CNC machined plate was engineered and manufactured to seamlessly integrate the 2.0T coil packs onto the 1.8T engine. The ECS engineers taking it a step further, have also Looking to mod your VW Mk4 GTI 1.8T with performance parts? UroTuning is your one-stop shop for all the aftermarket and OEM parts you need for your Mk4 GTI 1.8T. ★ SAVE UP TO 50% ON TOP BRANDS ★ CLICK FOR DETAILS Expected power you can aim to achieve from the stage 2 K03s is typically around the 230-250bhp mark with 280-300lbft torque. The stage 2 mods are going to add a 3″ downpipe decat with a 2.5″ minimum free flowing cat back to the list of modifications, Large oversize silicone Turbo Intake Pipe (TIP) and Free flowing Front Mount Intercooler. Stage 1+ E85 Tuning Kit for Stock Turbos: VW GLI/Jetta MK4 1.8T. $ 722.00 – $ 772.00. MTC Options. Choose an option Econ/91/93/E85 91/93/100/E85 Custom. Launch Control. Choose an option Yes! (Manual transmission required required) No thanks, or vehicle has automatic transmission. No Lift Shift. The 1.8T engine is fitted with two main types of ECU’s that are manufactured from Bosch. The early models, such as the AGU/AEB came with a Motronic 3.8.3 (M3.8.3) ECU which is used in conjunction with a cable throttle body. This is a easy way to tell whether you have older or newer style management. The later models, from ~year 2001 onwards VW Golf MK4 V6 (BDE) VW Golf MK4 V6 BDE Turbo RACE Deka 630cc; VW Golf MK4 V6 BDE; VW Golf MK4 VR5 (AGZ) VW VR6T (470cc petrol) Volvo B230 16V Turbo (1200cc petrol) Volvo B230 8V Turbo (440cc petrol) Volvo T5 (330cc petrol) Volvo T6 (VVTi, 1000cc petrol) b5Ojkfb.