I recently bought their intake manifold. Haven't installed it yet, but looking inside it and all around it, I see that there aren't any fab issues. I won't be able to install it until next year because I didn't know there was so many things I needed for it. I see you have a Gs-R? If it's a 3rd gen integra like mine, you'll be needing to socket your p72 ecu or hop on a chipped p28. I didn't know that, plus I need to get a type-r throttle body cable and bracket to make the installation more clean. Also new studs too since the Blox IM gasket I have may be too thick for the OEM studs. haha real pain in the ass, but I want to take my time and make sure I have everything before I install it and do it right the first time and not half ass it. If your planning to socket your ecu, I suggest you socket it after you finish putting parts in your engine or else, you'll have to resocket it and waste more money.