Weistec

After months of rigorous testing, we are pleased to announce our Anti Surge Valve for the M133 AMG (CLA45/GLA45/A45). A major shortcoming of AMG’s potent M133 engine is the lack of a bypass valve. When increasing your vehicle's performance, the absence of such a valve can inevitably lead to compressor surge and accelerated damage to the turbo.

Weistec Anti-Surge Valve’s (ASV) sole purpose is to permanently prevent compressor surge and premature wear on your vehicle’s turbo system. The valve allows compressed air to be vented to the atmosphere instead of back flowing into the compressor housing. Continuous back flow of compressed air can lead to detrimental damage to key turbocharger components. Back flowing compressed air slows the turbocharger's impeller wheel, requiring it to "respool" when a throttle input is made.

Weistec ASV not only prolongs the life of your turbocharger, but also improves throttle response by sharpening spool-up times. Furthermore, the system produces the infamous and highly sought after “blow-off” sound. This upgrade is a must for those seeking a bolt-on simple upgrade or planning on further upgrading their AMG 45 vehicle in the future.


Key Features:
- No Check Engine Light
- 100% Bolt-On Solution
- Easy 30 Minute Installation
- Increased Lifespan of Turbo
- CNC Machined Aluminum
- Hard Anodized to Military Spec
- Engineered and Manufactured in USA










These are in stock and ready to ship immediately. For product pricing and to place your order, please visit the following link:

http://weistec.com/m133-anti-surge-valve.html

Please contact us at (877) WEISTEC if you have further questions or concerns.

Weistec Engineering

soolman32

Very nice! I've been waiting to see more info on this since you released the video with the downpipe. Adding this to my wishlist.

What would be the advantage of having this part when you refer to "further upgrading their AMG 45 vehicle in the future"?

J_Maher_AMG

Well the more boost is run, the higher the pressure of air returning through the compressor. So basically as power and boost increases and reaches much higher levels, this will protect the turbo.

Honestly very surprised that the car didn't come with one; but $600 for a DV is just too much IMO, even if it is Weistech branded. It's only made of CNC aluminum, and that's more double the cost of the best Synapse Valves on the market.

Worth the wait

Welcome to ricer mod 101.
Reminds me of my Mazda MZR days.

JK guys

Glad to see a serious tuner involed in this platform.

aznevoviii

+1 on the price.

$600 for cnc'ed aluminum diverter valve (compare $200~300) is too much imo.
but again, this car cost twice or more than rice cookers..

VividRacing

Hoping to get this on our car as well.

bmwtarga

Another great Weistec product.

Main question for me is if this will this void our MB warranty, despite the argument this will protect the turbo?

Dinan is a similar engineering company for enhancing performance with BMW's which has an agreement with BMW NA that warranties will not be voided?

Is there any of such with MB USA?

Fleece82

I'm also interested in this product for my gla45 but feel the price point is questionable and curious about warranty.

peejalino

great to stumble upon this since being on the mercedescla.org side. good find and am looking to see updated vids and reviews!

Weistec

Thank you all for the interest. The Weistec ASV is completely reversible with no need for permanent modifications to the vehicle. Furthermore, installation of the valve is simple and takes between 30-45 minutes. In regards to warranty, any M133 equipped with the valve can easily revert back to stock should voiding any warranty be a concern.

ddtung

AMG designed the M133 engine with a BPV instead of a BOV and tuned it accordingly. If we install a BOV we have to make sure it will not affect the engine in some unintended way. Can Weistec please explain the design parameters as well as the results of the rigorous testing they did. It is pointless to say that the mod can be removed to preserve the warranty. If and when the car breaks down on the road and has to be towed to the dealer, it will be too late.

Weistec

The hardware itself was vigorously tested on a bench prior to vehicle testing. From there we test the part on multiple test vehicles that run through thousands of miles prior to release. This is typical of any parts we release. Please let us know if there is anything else we can assist with.

Weistec Engineering

ddtung

Yes you can answer my questions directly. Thank you.

bmwtarga

Thank you for the reply. Can you please post pictures on this site or on your own site how the valve connects under the hood?

Looks like a great product.

All the best

dblock110

$600? hhahhahahah

i hope absolutely none of you guys buy it at that price....do your research guys....there will be other options,cheaper, the same if not better, in time.

lets work together here for the benefit of this scene.

weistec doesn't even offer measly free shipping on their insane products.

dblock110

the highly respected brabus and carlsson have some agreements with MBUSA like that cehck out their products. more coming out for cla45 too im told...

weistec i dont think does..

leaning toward the other two at this point. atleast with their prices u get something extra perhaps, not JUST the A55RAPE that weistec provides.

jamesyot

I am all for new product being released but 600 for a damn BOV? Is there any evidence that this car needs an upgrade??

dblock110

no proof from weistec, and they dodged DDTUNG's question that started to get into how useful it actually is since car was made with an alternative to a BOV.

im sure to some people this $600 aint s*** so weistec will continue to do their thing and sell 10-20 of them whoopdy-do , but cmon now...

if no one buys their overpriced ****, their prices will simply have to come down to above-reality instead of above-outer-space

P3T3

Same goes for anything you add on. K&N filter, piggyback tune. Keep a stock filter in your trunk along with a pair of dikes and a torxdriver. So now you add an allen key to your trunk kit to remove BOV and all the other add ons, provided your car isn't on fire at the time. Different offset wheels could adversely affect wear on suspension components not to mention aftermarket coilovers. My point being if you want to add something be prepared to remove it or deal with the consequences. We all know it would suck if a tune crapped the bed or your turbo locked up. But those are two mods that can be relatively easily removed, although you may need a small set of tools to do so. As it stands if it doesn't say MB on it and isn't associated with your VIN don't put it on if you're going to worry about any mechanical failure.

peejalino

didn't anticipate the reaction although 600 plus shipping is pretty steep imo. subscribed. I too am interested but would like to know more

VividRacing

We just ordered ours up. Will do a full review, install, and video. If all goes well we might get a group buy going for you guys.

J_Maher_AMG

All of you guys are right. $600 for a BOV is insane. And since the car comes with a BPV, the car is tuned for that extra return of air. A BOV is going to lead to pockets of very fuel rich tuning.

Unless the BPV is made of plastic (which it isnt since we are running 26lbs of boost), or unless you are running well above stock boost levels (which no one is yet), or unless you are pushing massive power (also which no one is yet), then you may need a blow through system. Until then, OEM BPV is the safest and best option for your car and it's tuning.

This literally should be $250-$300, especially since it's not actually needed and is literally just a sound maker... Guy who mentioned 'ricer mod 101' hit the nail on te head.

soolman32

It takes time and effort to engineer a new product for any platform. Even if the material cost is minimal, a business still needs to be run. I'm not saying I agree with the price or think it's a bargain. My only point is that neither one of you whining in the paying vendor thread came up with this design or a solution for the car. It is your right to feel the price is too high but have enough decency to voice your opinions in a respectful manner. It's this kind of negativity that limits the time and efforts tuners are willing to put into a given platform. Why does the M3/4 always gets a ton of attention? because there is a market for and the people who buy those cars don't whine over a few hundred dollars. I'm not rich by any means but I'll save up and pay for a quality product if It's something that I want.

ddtung

That's why I asked the questions that I did, and I am pretty sure that's why they were dodged. Now it is up to Weistec to prove that you and I are wrong.

bmwtarga

Well spoken Soolman32. We should encourage tuners like Weistec, Brabus and other respectable ones to develop close ties with us the users and MB-USA manufacturer, so these products do not void factory warrenties, like BMW does with DINAN.