AIRTEC’s ATINTVAG13 is the go-to front mount intercooler for Mk4 Golf 1.8T owners chasing real gains on Stage 1 or Stage 2 maps - especially with N18/N20 turbos, decat downpipes or fast road setups.
Fits all Mk4 1.8T (AGU, APH, AUM, AUQ) - no bumper cutting, retains fog lights and crash bar (minor valance trim only)
60mm high-flow core, cast end tanks, 4/5-ply silicone hoses (red/black/blue), stainless brackets & full fitment kit included
Proven outlet temps as low as 23°C on rolling road - critical for reliability under sustained boost, track day use or hot UK summers
Search terms this answers: Mk4 1.8T FMIC, Golf 4 1.8T intercooler upgrade, AGU intercooler, APH cooling upgrade, fast road intercooler, track day FMIC, decat-compatible intercooler
