WEISTEC VTA Valve(blow off) install
Thread Starter
Senior Member
Joined: Dec 2009
Posts: 411
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From: Miami
2019 E63s
WEISTEC VTA Valve(blow off) install
Just did a very quick video on how to install the VTA valves by WEISTEC
https://youtu.be/d3QNOIl627s
Hope you guys like it!!!
https://youtu.be/d3QNOIl627s
Hope you guys like it!!!
Last edited by longbow0404; Jun 10, 2016 at 09:15 PM.
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C204 C250-CDI
Interesting and informative vid well done 
I think what you've suggested as the "alternative" is definitely the thing to do - it is exactly what I've done to other turbo charged cars of mine over the years ie. remove that same/similar hose and just plug off the opening...
It's worked well with no negative or backward effect on any of those cars I've done it to, hopefully it'll be the same for the new M177 engine.
As above can you make a sound clip to show off the audible effect or difference if any, with my cars that I've done the same modification to, it's definitely noticeable with a manual transmission but not so much with an auto trans, very interested to see what the result is in this case
I think what you've suggested as the "alternative" is definitely the thing to do - it is exactly what I've done to other turbo charged cars of mine over the years ie. remove that same/similar hose and just plug off the opening...
It's worked well with no negative or backward effect on any of those cars I've done it to, hopefully it'll be the same for the new M177 engine.
As above can you make a sound clip to show off the audible effect or difference if any, with my cars that I've done the same modification to, it's definitely noticeable with a manual transmission but not so much with an auto trans, very interested to see what the result is in this case
Thread Starter
Senior Member
Joined: Dec 2009
Posts: 411
Likes: 37
From: Miami
2019 E63s
Interesting and informative vid well done
I think what you've suggested as the "alternative" is definitely the thing to do - it is exactly what I've done to other turbo charged cars of mine over the years ie. remove that same/similar hose and just plug off the opening...
It's worked well with no negative or backward effect on any of those cars I've done it to, hopefully it'll be the same for the new M177 engine.
As above can you make a sound clip to show off the audible effect or difference if any, with my cars that I've done the same modification to, it's definitely noticeable with a manual transmission but not so much with an auto trans, very interested to see what the result is in this case
I think what you've suggested as the "alternative" is definitely the thing to do - it is exactly what I've done to other turbo charged cars of mine over the years ie. remove that same/similar hose and just plug off the opening...
It's worked well with no negative or backward effect on any of those cars I've done it to, hopefully it'll be the same for the new M177 engine.
As above can you make a sound clip to show off the audible effect or difference if any, with my cars that I've done the same modification to, it's definitely noticeable with a manual transmission but not so much with an auto trans, very interested to see what the result is in this case
https://instagram.com/p/BGfoK3EhWat/
Last edited by longbow0404; Jun 11, 2016 at 05:21 AM.
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Diamond W205 C63s Ed1
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From: Austin, TX
2017 Porsche 911 C4
I'm not so sure I'd want this, even if it's a free mod - mostly because I think the BOV tuner whoosh sounds out of place on an AMG, it's better suited for a big turbo tuner/JDM car. Besides, the V8 roar is all I need. If you want to hear more intake or induction noise, just install an intake - it's cheaper and will probably even yield some HP/TQ on the top end.
Also, nobody concerned that you're no longer recirculating the air back into the intakes? If you were to do a mod like this on even an older car, it would throw a CEL or have some kind of negative effect on performance because the ECU is expecting/compensating for that air those diverter valves are recirculating back.
At least on the Bosch ME7 ECU on the B5 S4 (a 15 year old car), replacing the DV's for BOV's would cause stuttering issues if it wasn't properly tuned for it. Just some food for thought as I'm sure the ECU's in the M177 are way more advanced and sensitive to these kinds of things.
Also, nobody concerned that you're no longer recirculating the air back into the intakes? If you were to do a mod like this on even an older car, it would throw a CEL or have some kind of negative effect on performance because the ECU is expecting/compensating for that air those diverter valves are recirculating back.
At least on the Bosch ME7 ECU on the B5 S4 (a 15 year old car), replacing the DV's for BOV's would cause stuttering issues if it wasn't properly tuned for it. Just some food for thought as I'm sure the ECU's in the M177 are way more advanced and sensitive to these kinds of things.
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C204 C250-CDI
Did a sound clip on IG, I will try to do a full driving video. But so far the sound is amazing!!!
https://instagram.com/p/BGfoK3EhWat/
https://instagram.com/p/BGfoK3EhWat/
I do agree with some of what AlexZTuned has stated above but at least this is not one bit as loud or pronounced as aftermarket BOV units which are purposely made with trumpet outlets to make the BOV whoosh as loudly as possible, that is not to my taste either.
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Joined: Dec 2009
Posts: 411
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From: Miami
2019 E63s
I'm not so sure I'd want this, even if it's a free mod - mostly because I think the BOV tuner whoosh sounds out of place on an AMG, it's better suited for a big turbo tuner/JDM car. Besides, the V8 roar is all I need. If you want to hear more intake or induction noise, just install an intake - it's cheaper and will probably even yield some HP/TQ on the top end.
Also, nobody concerned that you're no longer recirculating the air back into the intakes? If you were to do a mod like this on even an older car, it would throw a CEL or have some kind of negative effect on performance because the ECU is expecting/compensating for that air those diverter valves are recirculating back.
At least on the Bosch ME7 ECU on the B5 S4 (a 15 year old car), replacing the DV's for BOV's would cause stuttering issues if it wasn't properly tuned for it. Just some food for thought as I'm sure the ECU's in the M177 are way more advanced and sensitive to these kinds of things.
Also, nobody concerned that you're no longer recirculating the air back into the intakes? If you were to do a mod like this on even an older car, it would throw a CEL or have some kind of negative effect on performance because the ECU is expecting/compensating for that air those diverter valves are recirculating back.
At least on the Bosch ME7 ECU on the B5 S4 (a 15 year old car), replacing the DV's for BOV's would cause stuttering issues if it wasn't properly tuned for it. Just some food for thought as I'm sure the ECU's in the M177 are way more advanced and sensitive to these kinds of things.
You said it " OLD CARs". our cars do not have the Honeycomb MAF sensors so your statement doesn't apply in our engines. No side effects/Cels/ or problems.
In the test video I accelerated the car and released the gas before shifting so that you guys can hear the valves opening and closing. if you drive normal or even under hard acceleration you will not hear the valves as the car shifts are very fast.
In other words; for the valves to release air as strong as in the video you need to build boost and then let go of the gas pedal(close the TB).
Last edited by longbow0404; Jun 13, 2016 at 11:34 AM.
Thread Starter
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From: Miami
2019 E63s
In the Weistec kit the valves stay in place and all you do is replace the hose from the valve to the intake with the plug and adapter
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From: North NJ
2016 C63S
seems like they both accomplish the same thing in very different ways. Not sure if there is any benefit on one vs the other, i do think the Weistec are louder.
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From: Miami
2019 E63s
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Joined: Jan 2016
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From: North NJ
2016 C63S
Make sure if you remove the hoses to play around as MATT11212 dad, that you cap the intake pipe. that section of the intake is POST filter so if you suck something in there its going straight into the turbo.
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AMG GLC63 E-Performance Edition 1
Nice I like it, it's not an "in your face" or super loud BOV sound and not that pronounced either and just as I thought it would be with an auto trans if it were a manual there would definitely be more blow off because of the manual pedals shift action - have you noticed any negative effects ?
I do agree with some of what AlexZTuned has stated above but at least this is not one bit as loud or pronounced as aftermarket BOV units which are purposely made with trumpet outlets to make the BOV whoosh as loudly as possible, that is not to my taste either.
I do agree with some of what AlexZTuned has stated above but at least this is not one bit as loud or pronounced as aftermarket BOV units which are purposely made with trumpet outlets to make the BOV whoosh as loudly as possible, that is not to my taste either.
MBWorld Fanatic!
Joined: Oct 2011
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C204 C250-CDI
Junior Member
Joined: Oct 2016
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2017 C63s Coupe
Hey guys, so i got the weistec kit for my coupe and im struggling to remove the damn bolts, i think i may have stripped them but i stopped just incase i do more damage, my torx keys are quite old and damaged so im going to buy more tomorrow.
right now ive removed the pipes from the intake and the plastic divertor thing. And blanked off the intake inlets.
now what is the difference between leaving the black plastic bits or replacing them with the spacers. Do the spacers really actually do anything? Or can i leave as is?
right now ive removed the pipes from the intake and the plastic divertor thing. And blanked off the intake inlets.
now what is the difference between leaving the black plastic bits or replacing them with the spacers. Do the spacers really actually do anything? Or can i leave as is?
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Mercedes-Benz E63s AMG
Ugh... that's a no from me... I did that on my 335i coupe back in the day but for a nice car like this... but to each their own, thanks for putting this up for those who want to do it!
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Joined: Oct 2016
Posts: 55
Likes: 5
2017 C63s Coupe
Okay the new torx wrenches work however i cannot for the life of me reach two of the bolts, there is no room to work at all or Oneven get the trox key in there. Anyone got suggestions?
Hey guys, so i got the weistec kit for my coupe and im struggling to remove the damn bolts, i think i may have stripped them but i stopped just incase i do more damage, my torx keys are quite old and damaged so im going to buy more tomorrow.
right now ive removed the pipes from the intake and the plastic divertor thing. And blanked off the intake inlets.
now what is the difference between leaving the black plastic bits or replacing them with the spacers. Do the spacers really actually do anything? Or can i leave as is?
right now ive removed the pipes from the intake and the plastic divertor thing. And blanked off the intake inlets.
now what is the difference between leaving the black plastic bits or replacing them with the spacers. Do the spacers really actually do anything? Or can i leave as is?
