Skip to product information
1 of 3


Regular price $199.99 USD
Regular price Sale price $199.99 USD
Sale Sold out

BlackBoost “FTA” free to air | Mercedes AMG M177 / M178 "FTA" adapters to convert the diverter valve to blow off valve.


Blackboost Performance Engineering "FTA" are a must have upgrade to your Mercedes AMG 4.0l V8 M177 / M178 engine application!  This product not only gives an improvement to performance, but it gives that wonderful wooshing sound that we have all come to love from turbocharged motors that is sadly lacking from the factory!  Ferrari re-routes the factory blow off valves outlets directly back into the intakes of the turbochargers as a means of keeping things quiet, however there are some negative side effects to this type of routing.  When you recirculate this air, what is happening is you’re sending ultra hot air from after the turbo’s outlet directly back into it’s inlet!  This causes overly high intake temperatures, which results in lower reliability and lower power!  When using Blackboost Blow Off Valve spacers you are venting the excess pressure to the atmosphere instead, which eliminates these performance related issues, and also results in that much loved sound, ultimately giving a much improved driving experience and auditory satisfaction!  Rest your concerns over engine management control issues due to the atmospheric dumps, as the type of computer control used on these engines does not care about dumping air in this way, and there are zero negative effects to installing this product for this reason.  Our Blow Off Valve spacers are 5 axis CNC machined from aircraft grade 6061 Aluminum to the highest quality standards, and are O-ring sealed to guarantee a lifelong leak free operation.  With a high quality Anodized Black surface finish there is no concern of any corrosion, and they appear to be nearly factory; to the untrained eye no modifications will be visible.  We offer a lifetime warranty on this product as there is nothing to fail without any moving parts; just bolt them on and forget them, then enjoy your car’s new found performance and character!

- no ECU tuning required
- no CEL (Check Engine Light)
- CNC Machined Aluminium 6 Series
- Bolt On installtion