I have an aps bov, works filter, and forge unos mbc as my current to do mod list. I was looking at getting an hks intake pipe only, but would this cause me to run worse without a tune? I do not plan on getting a tune yet untill atleast after a TBE. Should I get it or skip for now?

 

Don't do it. Also, don't do the BOV. You should only be concerned with a TBE and a tune. You also don't need to wait on the TBE to get tuned, since it doesn't require a retune...

Forge Unos - Good!
Works Filter - Good!
TBE - Good!
Tune - Good!

APS BOV - Don't need it! Use your money wisely elsewhere, even if it's to get a JDM MR DV for $120.
MAF pipe - Hell no!

 

Buy what you want, not what someone else tells you to buy. I had an untuned HKS intake and absolutely loved it. A definate performance gain untuned. If you want to buy a BOV that makes a lot of noise, go for it. I personally went with the MR DV. An intake allows the stock Dv to be heard very easily. It's all up to you. There are so many good products out there to choose from.

 

wat about the dejon intake pipe?

 

Dejon makes great stuff, but it's the replacement of the stock, plastic MAF pipe that causes the most problems with the MAF readings. STay away from an aftermarket MAF pipe.

 

thanx

 

Check your stock BOV for boost leaks. If it leaks get the BOV you want - nothing wrong with the APS.

 

The APS BOV will work better than the JDM BOV, trust me I have used them both. You probably won't need either if you aren't turning up the boost, but if you plan on it in the future the APS will be all the BOV you need. The MR will start to flutter at higher boost levels. Your car is driveable w/ your mods and I wouldn't suggest getting flashed until you buy the majority of parts that you plan on getting (makes no sense to keep getting flashed everytime you put something on)

 

All BOVs leak at some point except for the HKS SSQV pull-type, so this is not useful information. The stocker will leak, just like all of them leak, at a lower-than-stock PSI (13-15). That is just natural based on its design and spring pressure. There is nothing wrong with the APS BOV, but it's expensive and unnecessary, unles he's going to be running 25+psi on race gas on a regular basis.

 

A properly-installed JDM MR DV does not flutter whatsoever at any rpm or any boost level within the efficiency range of the stock turbo. I have never experienced any type of flutter whether it be at 21psi on pump or 24-25psi on 116oct. If you run higher than this, then that's not recommended nor relevant to the thread originator's setup nor the comment that the APS works "better."

 

Actually mine fluttered and a few other people who had this valve had it flutter. Maybe yours works better, but trust me when I say the APS is a much better unit at holding boost. And since this poster said he already had an APS Bov it is good for him to know. Also the maf pipe is not necessary, but when he gets tuned he can see gains from it.

 

Ok so a few other people claimed it, but hundreds haven't experienced it. That lends itself to improper installation, trying to run too much boost, or having poor connections (see installation).

He doesn't already have an APS BOV...he said it's on the to-do list, so I'm trying to save him some money. I highly doubt he'll be pushing enough boost to make use of an APS BOV. I don't see how it could hold boost "better" than an MR DV when the MR DV holds it perfectly already up to 24-25psi, but I do see how it could hold boost "better" beyond that level.

You're saying he'll see gains from just installing a MAF pipe after a tune? I haven't heard of people seeing significant gains just from replacing that one pipe...yeah, they see gains from the tune itself, but just replacing that one piece does not provide measurable gains, and often times it makes things worse.

 

I have to agree with Warrtalon on this one. My MR DV never flutters... Well maybe a tiny little bit at partial throttle, but no more than the stocker.

 

Speaking out of your rear end again Warrelton. Maybe that is why you are teh slower MR.

MAF pipe is the best intake upgrade since it is the main restriction outside of the paper stock filter. I am flowing an additional 150 MAF HZ with the injen intake due to the elimination of the restrictive stock rubber pipe. The open intake is a slight bump due to noise, the rest can be attributed to the additional volume of the injen pipe and it not collapsing like a rubber hose can.

 

I know that installing the MR BOV is so complicated and I can see where I could have screwed that one up , I am letting him know that if it is on his to do list, that he may want to go w/ APS over the MR if he has bigger power plans down the road. You may not think that your MR valve is leaking, but I can tell you that when replacing the MR w/ an APS unit I have seen higher boost levels. Also you can search 1000 threads about how adding an intake has increased horsepower w/ a tune over those who just got tuned on stock intake. If you actually search the JDM BOV you will see that this is not an isolated instance as it has caused idle problems when people come to a stop ( idle dips) and flutters under boost. Maybe at your level of mods you aren't maxing out the valve, but there are better valves out there.