Intake Manifold for LS Cathedral Port Heads for LS1 LS2 LS6 LS Engines Compatible with Chevy 4.8 5.3 5.7 6.0 HTRACING (Silver 92MM)

Intake looks fairly good quality. It passed an 18psi pressure check. Anodizing was perfect. You may have to drill holes in the fuel rail stand if you use common aftermarket injectors to lower the rail height, not too big of a deal, it’s like 16ga aluminum sheet metal. I wouldn’t recommend this intake on naturally aspirated engines. TECHNICALLY it is a square port intake. It is a square port runner all the way down to the injector boss, which then flares out to a cathedral port (like a typical cathedral intake) but the difference is the runner is still square, the injector boss is totally separated from the runner itself and not blended into the runner. I’ve attached a picture for you to see. Running a square port intake on a cathedral head on an n/a engine will obviously work, but with significantly decreased power. Overall an 8/10. When you look at other high ram intake options, the prices are ridiculous. Would other intakes flow a little better? Yes. Would I run this over my Holley high ram on my drag truck? No shot. Did I put this on my turbo LS daily? Absolutely.

Do not buy for c5 corvette Overall the intake looks great, quality is good as far as I can tell, I test fit one injector and it seemed to be good. There’s nothing I can say bad about the intake manifold itself But this is NOT made to fit a c5 corvette. You will have to cut your cowl to make it fit properly, if your not ready to cut your cowl, then do not buy this intake

Good intake! Welds were nice and MAP sensor port in the back is perfect to hide wiring. Came with everything needed to install on engine! Really nice anodized black finish!

I’m going to have to use my old intake because this one is junk, my injectors don’t fit, I broke the O rings off and the braces won’t bolt on right. ITS JUNK , ps I just fired up my build and my injectors are blowing gas everywhere. What a joke. Not the injectors that’s for sure. Blowing up from the bottom of the intake holes, 3 of them are leaking from the top

I have not ran the car so I dont know how well it will do. As far as fitment though here is my findings: 1) It has square ports, with that being said it will fit the cathedral ports but I can't imagine it will flow amazing due to the air encountering the flat edges for the cathedral port towards the top 2) The flanges were slightly warped from welding but once bolted down it seems to seal pretty well 3)The rear port for the MAP sensor works well for a 2.5bar sensor 4)The oring holes on the rails fit very well but the holes on the intake are slightly undersize so the standard ls1 injectors won't go in properly (can be jammed in there but it will most likely cut the oring) I found out that using the OEM blue top oring on the bottom seems to solve this issue. 5) The brackets supplied to fasten the rails are bent slightly off so they did not fit without re-drilling the holes. They also have slots on the hole that mounts the bracket to the rail for the side to side play but that is also not long enough. I gave it 4 starts because overall this can be made to work and it is a nice looking piece, but it definitely requires some effing around.

I have to do some research how majority of these intakes are made by the same company in China but this one was less expensive so I ordered it to upgrade my gen 4 F body 2002 Trans Am It came in two days . I began to open the box and started going through it and I noticed there was a chemical haze/ film on the whole intake manifold I try to clean it but was not successful , but that wasn’t the biggest issue all of the mounting hardware manifold gasket fuel rail mounting was all missing but the fuel rail was there was not there the fuel rail was there ,, I went back to the website to check what came with and all that stuff is supposed to be there ,,, as stated in the description .. So I contacted Amazon immediately to let them know and the rep was very helpful apologetic and I was just asking do I get hardware she says no return it and will send you another one I said OK. Replacement Arrived this time the unit did not have this weird film / haze on The entire intake manifold all hardware was there so I returned the original intake manifold missing the hardware that I needed I can’t tell you about the performance but I feel pretty confident when I was comparing the original and this intake it looks like it’s gonna be a pretty good install but I can’t say that yet until I start the installation process, I will give you an update on the entire installation process any any tricks and what issues that may occur

I haven’t had a chance to get it on yet, but it looks OK

Seems to be a good intake but wish it had come with instructions

Some bad machining on the injector pockets but seems to work out just fine. Stock truck injectors only fit if you change the O rings out for smaller ones. Overall very happy with the finish and well worth the cost savings

This does not perfect fit u need too machine injecteur holes and cut injecteur fuel rail brackets and do not use original brakets its a pain to make them staye in there sockits put somme rightstuff or else work great !!!

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