AW11 4agze Custom Vacuum Line Kit

Supercharged AW11 owners — don't let a cracked vacuum line ruin your boost. The factory 4AGZE is a cool piece of Toyota history, but the rubber vacuum lines wrapped around that little supercharger weren't meant to last 40 years. Cracked, dry-rotted, or pinholed lines on a supercharged engine don't just cause rough running — they mess with boost control, idle stability, and the overall health of the system. This kit gives you everything you need to replace every vacuum line on the engine, including the ones on the supercharger itself. Heads up — this is a bulk silicone kit, not pre-cut. We haven't had a 4AGZE in the shop long enough yet to measure and build a pre-cut, labeled kit like we do for the 20V 4AGE. So for now, what you're getting is high-quality silicone line in enough quantity to replace every vacuum line on the engine — you'll cut it to length to fit your specific car during install. Down the road, when we get more time with a 4AGZE on the bench, we'll roll out a full pre-cut version just like our 20V kits. The silicone itself is the same professional-grade high-temp material we use across all our vacuum kits — way more durable than factory rubber and built to hold up to the heat cycling that kills stock lines. You can also tailor the kit to your car: - Add A/C idle-up lines if you're keeping A/C functional - Add cruise control lines if you want to refresh the cruise vacuum module setup Every kit is hand-built to order right here in the USA. Fitment: Toyota MR2 AW11 with factory 4AGZE (supercharged) Important: The 4AGZE is supercharged from the factory, which means any vacuum line exposed to positive pressure needs clamps. Press-fit alone won't cut it on a forced induction engine — the boost will blow the lines off. Install hose clamps on every pressurized line that previously had one during assembly to keep things sealed under boost.