






MK4 1.8T 450hp FMIC Kit - CTS Turbo Upgrade
The CTS Turbo FMIC kit for the VW MK4 1.8T (Golf/GTI/Jetta) is a strong cooling upgrade for stock or modified cars, delivering a big improvement over the factory setup thanks to a high-density intercooler core and cast aluminum end tanks. Every pipe is bead-rolled so you do not have to worry about boost tubes blowing off or leaking. It also runs black aluminum piping, 4-ply silicone couplers and stainless steel T-Bolt clamps.
Specs
- Rated at 450 crank HP
- Core measures 25.25" x 8" x 3"
- End tank to end tank: 35.5"
Product features
- Proprietary high-density bar/plate core
- Mandrel-bent 2.5" piping with black powder coat
- 4-ply silicone couplers and stainless T-bolt clamps
- Capable of supporting over 450hp
- Compatible with stock turbo (K03, K03s, K04 or ATP Eliminator kit)
- Compatible with big-turbo applications (must use CTS exhaust manifold or custom work may be required)
Fitment
- 1999.5-2005 VW Jetta 1.8T incl. GLI, manual transmission only
- 1999.5-2005 VW Golf 1.8T incl. GTI, manual transmission only
For late MK4 models, see the image for proper MAP sensor o-ring installation — keep the factory o-ring (green) and install the supplied sealing o-ring over it (sensor not included). For the sleeper look, the stock bumper grilles can be installed with bumper trimming; cutting to the bumper rebar and bumper is required.
Ships from our Vancouver shop — KORE SPEED is proudly Canadian-owned, with no surprise cross-border duties for Canadian buyers. Questions on fitment? Email support@korespeed.com.
Pairs well with

MK4 1.8T 450hp FMIC Kit - CTS Turbo Upgrade
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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