There are a variety of different k04 turbocharger types according to the shape and internal structure. K04-001 turbo installation position is exactly the same as the original 1.8T engine k03 turbo. Besides, the original models of K04-015 1.8T engine (Passat and Audi A4, etc.). The strongest of K04 series is the Audi TT225 hp k04-022 and k04-023, etc., all named k04-02X series turbos, and other various structures internal blades, with the higher air flow and limit. But because of the different shapes, it needs a lot of peripheral components to cooperate in order to modify the engine k04-02X, the cost will be higher, but since all the original parts, so it is quite cost-effective relatively.
Install the k04 turbocharger separately and don’t change any other else, because a amount of wind increases, the power will have a big progress; however, to play the potential of k04 turbo, it is necessary to replace the surrounding components. The most basic is the intake, especially the exhaust. But for k04 turbo, it is generally recommended the exhaust pipe diameter is for 63.5mm / 2.5 inches, so that it can reduce exhaust resistance, the turbo reacts more responsive and works more smoothly. Here emphasized the diameter, which is the main parameter affecting the output, to maintain the original diameter but only to replace the tail section, the biggest change is the sound, rather than performance. It is not good to remain the original characteristics of the engine. After all, the original setting is the most balanced.
Maxspeedingrods featured K04 turbochargers, turbo cartridge and any other engine parts :
1, K04-015 Turbo Audi A4 A6 Quattro & VW Passat 1.8T Turbocharger
2, K04-022 Turbo Audi S3 TT Quattro 1.8L & VW Seat Leon Cupra Turbocharger
3, K04-001 Turbo Audi A3 TT & VW Bora Beetle Sport Golf Seat Skoda Octavia Leon GTI 1.8T Turbocharger
4, K04-023 Turbo Audi S3 1.8L TT Quattro & VW Seat Leon Cupra BAM/BFV Turbocharger
5, More turbochargers, here : http://www.maxspeedingrods.co.uk/turbocharger.html