I know this matter was commented good few times already - I've spent some time trying to catch all the info from different threads… … but I am still not 100% sure about few related things (I am kind of newbie and not a mechanic either…) and with your help lads I just would like to summarise it as I just purchased the tubular inlet from 1998 E11 Corolla 1.3 4EFE (for €10!!!) and I want to fit it into my 1998 EP91 Irish Starlet. I think it would be great for all of us ordinary N/A people to have this info in one thread! So: The 2nd Gen 4EFE Mani is the rectangular shape which is currently in my N/A EP91 Starlet: The 3rd Gen 4EFE Mani is the tubular shape (looks like an octopus;) and can be found in E11 Corolla 1.3 (Is it also mounted in Jap N/A starlets like Reflet, Soleil? I know it’s not in Glanza S…) I bought this: The most important questions are: 1. The swap of the intake manifold between 2nd and 3rd Gen 4E-FE is just straight forward replacement - correct? (all the hoses, cables etc stay where they are? The existing bracket holding the inlet stays and fits ok?) 2. What is the inside diameter of that intake - will it fit my existing standard throttle body??? (is it 45mm?) 3. If I change the Mani only do I still get better airflow? Is it worth investing in 50mm throttle body and what car is it from? (do I have to port the mani then?) 4. Do I have to change the ECU (after changing Mani only) or just overnight reset would do? 5. Would it work better If I got the 100bhp 4EFE jap ECU (Soleil but not Glanza S or jap EP82/85 only?) - is it plug and play and is it safe and does it benefit in any power gain in Irish 4EFE?!? Does it have to be mapped for Irish fuel? 6. What is the most advantageous set up for this tubular inlet? 7. After fitting this tubular inlet only - Is there anything I MUST do? Thank you in advance for all the help and comments!!! Cheers!