We’ve put together a comprehensive K04 Turbocharger installation kit for your MK4 GTI to help you out. Now, it doesn’t necessarily require a software tune, but to make the most of the K04 turbocharger upgrade for your MK4 GTI 1.8T, you’ll want to upgrade your software as well. The K04 is the “bigger brother” of the K03 turbo found on the large majority of 1.8t’s. The came on cars with a base power level if 210bhp and 225bhp. The K04 turbo will range in power when remapped, with a simple stage 1 remap taking power to around 250bhp. With full stage 2 hardware and supporting mods the typically power can range from
The BorgWarner (3K) K04-001 is designed for transverse mounted 1.8T motors. This includes the following model motors: VW MK4 Golf 1.8T VW MK4 Jetta 1.8T VW Beetle 1.8T Audi TT 180hp BorgW
This exhaust features a 2.5″ pipe diameter, which is a little smaller than some of the ones listed and has 4″ tips giving it an aggressive aftermarket look. This system only fits the MK7 GTI, not the MK7.5 GTI. Price: $977.99 + Shipping. Performance Gains: Weight reduction and increased airflow.
Mk4 1.8t exhaust manifold question. I dropped my car off to the garage this morning, to have a look at a strange exhaust noise from my 1.8t. Anyway just spoke to the guys, who have told me that they suspect that It could be either an exhaust manifold gasket or a cracked exhaust manifold. He told me that for the gasket it is about 4 hours work
Most vehicles have 16 to 18in wide wheels and fitted to a vehicle that weighs from about 1360kg. My Gtech for a typical MK4 1.8T, suggests 0-60 in 8ish secs 1/4 mile 16.1@87mph ( about as fast as a MK2 8v GTi digifant) A STD MK3 VR6 say a late MY from 96 with similarly fitted with A/C, heated seats etc weighs 1280kg. . 87 5 23 190 154 328 202 270 123

mk4 golf 1.8 t tuning guide