This product is great for the price. The only other option that performs on the same level would be the skunk 2 alpha header which would be more expensive since you also need motor mounts with it. It was an easy install, honestly, the hardest part was getting the OEM header out but it wasn't too bad. Installing the header was easy. That being said the only reason this product got 4 stars is that it does leak at the slip joints when the engine is cold. It does not affect the performance or anything but it should be noted as it is a minor annoyance. It seals up when it's warmed up but do expect leaks when cold. If you get this header, it is a must that you use red Loctite on the slip joint bolts so they don't come loose, and make sure to hammer the slip joints with a rubber mallet for the best seal possible. Another must-have is the vibrant doughnut gasket because that will prevent the leaks at the test pipe. The included gasket is trash which also applies to the skunk 2 header. A highly recommended addition would be a new OEM upstream o2 sensor. I know everyone getting this probably has an older si with a lot of miles so if you haven't changed the o2 sensor that you must do it, I had to get a new o2 sensor because my AFRs were all messed up. If you get a new o2 sensor make sure it is the Denso one. DO NOT CHEAP OUT ON A O2 SENSOR. Trust me guys you should not cheap out on any of the other products I recommended. Modding a car is not cheap and you must get quality parts if you want things to be reliable. You WILL REGRET it later because you will have to get the mentioned products for a proper header install. Also, a side note is that the header does not come with the 3 bolts you will need to mount up the header to your exhaust. If you have a stock exhaust you will need 3 14mm bolts and nuts but if you get an aftermarket exhaust, you should be fine as they usually come with them (or at least the full-race 3in did). To finish off, this is a great product with really good gains. I would definitely recommend this as a budget option.

Super easy install, took the car out, no flashpro and could tell there were gains. Cant wait to get my flashpro from you guys and then select the right tune and see how much more it pulls. Super fast shipping as well.

Shipping was fast and easy! Once received, I began assembling the header (it comes in multiple pieces, not one solid unit like other headers) and I realized there was no bung for the upstream o2 sensor. If you're running a tune, this sensor is no longer used anyway, but since there is no bung, there's really no place to put it. I just removed mine. The other downfall is there are no hangers on the header itself which puts a lot of stress on the connection at the head -- resulted in some leaking for me. I welded a hanger onto it to utilize the OEM hanger position behind the 4-2 spot on the header. Great product for what you pay, but, you get what you pay for -- PLM cut some corners.

Thank you, fast shipping, love my header!

It arrived within a week! Awesome delivery! It is in immaculate shape and no broken parts! One thing I gotta point out though, the holes that are wielded in to the 2-1 part that I'm suppose to bolt the screw and nut into are not aligned so therefore I cant put the screw through. Hopefully the cat converter will hold it up and stay connected to the headers.

PLM HEADER + FAST SHIPPING = 10/10 YES A+ Will definitely be using you guys from now on. Love the header, super great quality and design for the price!

Love my plm header, it looks so amazing. Even better in person. Install was a breeze and took the car out and the gains were incredible. Really picked up some sound with the exhaust as well. Super fast shipping, thank you!