Mk1 Golf GTI Big Throttle Body and Gas Flowed Manifold Post Posted 17 July 2020, 8:46 PM #1636599 (In Topic #226430) thexvw Settled In Mk1 Golf GTI Big Throttle Body and Gas Flowed Manifold Mk1 Golf 8v Gas Flowed and Modified Inlet manifold and a large Audi 5 cylinder "Big Throttle Body".Classic mod for an 8v to increase airflow and performance.£135 postage approx £15. 0 guests and 0 members have just viewed this: None. Forum home Engine and Running gear for sale