Forge Motorsport Bypass Valve?

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KatDiesel

Member
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CX-7 GT AWD Electric Blue Mica
Forge Motorsport Bypass Valve - Mazda CX-7
"Direct Replacement bypass valve for Mazdaspeed 2.3 DISI engines!

Youll notice improved throttle response, better boost handling capacity and quicker spool recovery. Machined from Billet aluminum the MSP02 is completely tunable and serviceable to keep up with your modifications as they progress.

Installation is simple and takes less than 10 minutes requiring no modification to the factory plumbing. The BPV comes with Forges No Hassle limited warrantee and is available in polished or black anodized finishes."

Anyone using this product yet? I love the look....simple......and its only $169.95. I don't see the point in buying a BOV when we don't vent anyhow? I'm considering picking it up soon, just checking to see if anyone else has it......
 
KatDiesel said:
Forge Motorsport Bypass Valve - Mazda CX-7
"Direct Replacement bypass valve for Mazdaspeed 2.3 DISI engines!

Youll notice improved throttle response, better boost handling capacity and quicker spool recovery. Machined from Billet aluminum the MSP02 is completely tunable and serviceable to keep up with your modifications as they progress.

Installation is simple and takes less than 10 minutes requiring no modification to the factory plumbing. The BPV comes with Forges No Hassle limited warrantee and is available in polished or black anodized finishes."

Anyone using this product yet? I love the look....simple......and its only $169.95. I don't see the point in buying a BOV when we don't vent anyhow? I'm considering picking it up soon, just checking to see if anyone else has it......
Click to expand...


Thought I posted the link.....guess not.

Here is where I found it :
Forge Motorsports

And here is where i found the price:
Price

I think I will fire off an mail to Forge and ask for more info. I'm not looking for any sound from a BOV...just want a better than stock solution.
 
Don't have it but have been thinking about picking up a BOV. The stock one is rumored to leak on these motors and a quality aftermarket one should hold boost better.
 
If you're just replacing the BPV with another one that is the same but better, I'd skip the Forge. Coming from the MSP community where there have been many users of their products, the reviews have been mixed at best. Most people have felt that they just aren't that good quality wise. I'd look into a boost sciences diverter valve if your just looking for a stock replacement
 
I have had a Forge BPV on my Evo for almost the whole life of the car.....nothing but good things. Holds 23 psi with ease!(headbang)
 
About to order this... Anybody have the CP-e Intake (Or really any intake...) and the Forge Bypass Valve on their CX-7? Any comments, or even better, any audio clips?

Trying to remain as quiet as possible, yet still hear the sexy turbo sounds...
 
jb_pdx said:
About to order this... Anybody have the CP-e Intake (Or really any intake...) and the Forge Bypass Valve on their CX-7? Any comments, or even better, any audio clips?

Trying to remain as quiet as possible, yet still hear the sexy turbo sounds...
Click to expand...
HKS BOV and K&N CAI with a magnaflow exhaust here is a clip


MazdaCX7018.jpg
 
Magnaflow doesn't sound too bad... thanks for posting. Can't hear the BOV though really. Probably just where the mic was.
 
Thanks for the clip! The Magnaflow sounds great, it has been added to the list that my wife and bank acct. both hate...

I now have the Forge BPV installed, along w/ the CP-e CAI. It sounds soo sweet! Much cleaner/tighter feeling and sounding than stock. Seems to get up a bit quicker on freeway/passing situations. Well worth the $150...

I am curently running w/ the blue spring in, just as it came from forge. I might try out the yellow spring w/ 1-2 spacers in, just to see how that works out.

If OP or anybody wants pics/audio/video, let me know. I would just post it, but I have not posted that kind of stuff before....
 
If you could post at least a sound clip of the forge from the drivers seat, window down that would be awesome. I just installed my intake and it definately sounds like the stock valve is leaking boost. I just want to know what the forge sounds like.
 
Pics and sound clips tomorrow!

I will get a couple of pics and a sound clip w/ window up and one w/ it down. Should have them posted by tomorrow afternoon.

Still running the blue spring, as I have no way of testing/monitoring boost. I just ordered the DashHawk... After I get that in I will try the yellow spring/shims out and see if it holds peak boost.

Really impressed with this BPV. That stock one is terrible.
 
With an intake you can hear the sound of the stock valve, its a very slight "pssh." Its more audible if you rev to 4k+ before shifting/letting off the gas.

But to me, it sounds like the stock valve is leaking boost, because you hear alot of high pitched whistling from 3k+.
 
With the CP-E are the turbo "sucking" noises really pronounced around 2k rpms? Those are the ones my wife can't stand, especially in around town driving where it seems like unless you always have a lead foot, you're floating right around 2k rpms and thus the noises are very pronounced. I can clearly hear them in that video at the beginning until the engine revs pick up.

She's really bugging me to take off the AEM short intake. I assume the majority of the noises are the sounds coming from the open intake, since the CPE sits down farther in the wheel, I assume they are a little more subdued. I'll probably just have to buy it to see.

I included 2 mp3 files of the AEM intake/stock valve, I had to turn the volume up a good bit to get decent sound from them. I took them with my laptop and its soundcard is pretty crappy. Both are windows up, air off/radio off. One is 3k shifts, the other is roughly 5k shifts. The quality isn't that great and honestly the turbo sucking noise is a good bit louder than it is in the clips. Windows down they are pretty similar except everything is slightly more subdued from the wind noise.
 

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Last edited:
astraelraen said:
With the CP-E are the turbo "sucking" noises really pronounced around 2k rpms? Those are the ones my wife can't stand, especially in around town driving where it seems like unless you always have a lead foot, you're floating right around 2k rpms and thus the noises are very pronounced. I can clearly hear them in that video at the beginning until the engine revs pick up.

She's really bugging me to take off the AEM short intake. I assume the majority of the noises are the sounds coming from the open intake, since the CPE sits down farther in the wheel, I assume they are a little more subdued. I'll probably just have to buy it to see.

I included 2 mp3 files of the AEM intake/stock valve, I had to turn the volume up a good bit to get decent sound from them. I took them with my laptop and its soundcard is pretty crappy. Both are windows up, air off/radio off. One is 3k shifts, the other is roughly 5k shifts. The quality isn't that great and honestly the turbo sucking noise is a good bit louder than it is in the clips. Windows down they are pretty similar except everything is slightly more subdued from the wind noise.
Click to expand...

The CP-e Intake w/ the stock BPV/BOV was a lot of wiiisshhh, phhhisssh and crap like that. Sounded better than bone stock, but my wife hated it as well. The Forge BPV really improved the over all sound. The stock BPV must have really been leaking, cause she (my wife) actually likes the way it sounds now!

Another thing I did to get rid of some of the excess/unwanted nosie from the CP-e intake was to make sure the filter was not touching the splash guard/wheel well cover. You have to play around with the intake pipe and elbow connector to get it just right.

All in all, I feel like the turbo sounds just as it should now... these two products (CP-e Intake and Forge BPV) really go well together.
 
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