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Reviewed in the United States on September 30, 2021
Just only about 2 months old and snapped right off makes no sense still got a few meets and shows to go to. i still haven't heard back to see if it's gonna be replaced.
Shaunda Montisol
Reviewed in the United States on October 2, 2021
The exhaust manifold started to crack in two different spots
Dwayne H
Reviewed in the United States on July 13, 2020
First manifold had to be decked very warped. After one year wastegate snapped off. Trash.Second manifold had to be decked also extremely warped. MANIFOLD WASNT EVEN WELDED COMPLETELY! Now I must find qualified welder to finish welding. I am over $800-900 into these manifold and still can’t use them. Not to include the radiator and intercooler that was punctured when wastegate broke off first time. Long story short buy quality parts. For the money spent could have purchased reputable parts once.Update: GREAT Customer service. Everything was resolved!
nathan145
Reviewed in the United States on April 30, 2020
At this price point. About 1/3 of the big name ramhorns, this rev9 seems to be pretty decent. It’s very heavy, and it’s not the typical cheap eBay manifolds. I can’t speak for longevity, but I know a lot of people have ran these with great success. The inside was cleaned up nicely at all openings, and welds seem decent enough. I’m going to look into coating mine. As once these go uncoated they do look a little ugly. But the only thing off hand is my wastegate port does not have the little support tabs welded on like the picture shows. Now I will also add this is a non AC manifold. Meaning you must put your exh side facing your radiator. Another option I’d you want to run your downpipe towards your timing belt side, you will either have to notch the webbing in your block to fit or get a certain turbo type (I can’t remember off the top of my head which 5 bolt style turbos fit) depending on your downpipe routing, you could keep your ac. And I recommend tossing this manifold gasket kit. Use the thin steel type. These thicker gaskets blow out too often to bother with trying to run them. And the hardware included in mine was grade 4.8. I’m gonna toss those and grab some grade 8+. I will update when I get it on my car and get some miles on**UPDATED**On my application (b18c1) this manifold gave me boost creep pretty fierce. At my 9psi spring I was seeing 20+ before redline. What I had to do was remove the 38mm flange and that small section of pipe. I opened up the hole in the collector and had a larger diameter pipe welded on, and stepped up to a 50mm wastegate and had the correct flange installed. Opening up that port and using a larger gate I was only seeing a 1psi creep at redline. Very pleased with that. So beware, there’s a chance you will have to go in a modify this thing. But the thickness was what it was advertised at, and so far it’s held up very well.
jeremy
Reviewed in the United States on December 4, 2019
The media could not be loaded.
Trace
Reviewed in the United States on November 30, 2019
This manifold does not fit on a b series engine. It still had a quarter inch gap before it seated to the exhaust outlet on the engine, and it was touching the engine.This is absolutely not bent in the correct direction to fit any size turbo. I went from another ram horn that broke to this and again it absolutely will not fit. don’t waste your time.THIS PRODUCT DOES NOT FIT AND THEY WILL MAKE YOU PAY RETURN SHIPPING AND A RESTOCKING FEE.
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