Maintaining and accurately diagnosing modern turbocharged cars is very important and also why quality shops are hard to come by. Solo Motorsports took in this W212 Mercedes E63 AMG that has a Weistec M157 turbo upgrade as the owner complained about inconsistent power. ...

Tired of these yet? Hopefully not as there will be plenty more to come. The truth of the matter seems to be that both the E63 S and the F90 M5 are extremely capable and it comes down to reaction time and traction to get the win. ...

The latest rage for automakers seems to be offering a subscription to their cars which allows subscribers to try a variety of vehicles from the automaker without being tied down to a single car. This is designed to appeal to a younger audience although the pricing makes you wonder who can afford it. ...

Another day and another M5 vs. E63 comparison. This one comes from Edmunds and they do a decent job. They start off calling the two sedans 'sports cars' which is rather stupid because with all wheel drive twin turbo V8's and 4300+ pounds they are hardly nimble canyon carvers. ...

As many readers of BoostAddict have German cars and plan to purchase German cars this is concerning. Then again, you could say German automakers have taken advantage of the US market for some time with one-sided deals favoring them. ...

These cars should be fighting it out on the track, not the airstrip. However, if on the track the NSX would be at a disadvantage. The AMG GT R produces an amazing 7:10 Nurburgring laptime and the AMG GT R is setting much quicker laptimes in independent tests. ...

The M157 is not dead yet. M157 powered 63 AMG models are a great value and while the 5.5 liter design is a bit dated in design the displacement certainly still counts for something. Just look at this powerhouse of an example from Germany. ...

This is a fun race to see as it has the three main heavyweights in the mid-size luxury sport sedan class duking it out. They are all basically big, heavy, twin turbo dragsters and torque rules the day. We previously saw this F90 M5 go up against and lose to the E63 S. ...

Keep the W213 E63 vs. F90 M5 videos coming! This matchup is a short but interesting highway pull as the W213 E63 AMG S has an M177 ECU flash tune from DME Tuning. The car also has downpipes which we assume are catless. ...

Take a look at Renntech's R3 offering for the Mercedes-AMG C190 AMG GT S. Renntech offers a full carbon fiber body kit along with Performance Series 10.2 Forged Wheels. This is not all show and no go however as the M178 4.0 liter twin turbo V8 gets some serious upgrades. ...

A very, very impressive 1/4 mile pass from BenzBoost member @munis and his W205 Mercedes-AMG C43. The car is tuned with a BMS (Burger Tuning) Stage 1 box and the results on the 3.0 liter M276 DELA30 turbo V6 are remarkable. ...

The CLA & GLA 45 is often overlooked by performance enthusiasts and is not generally regarded as a high-power platform, but we at Weistec disagree. We have worked hard to provide the BEST tune on the market for the M133 platform, not only in numbers but also in sheer power delivery. Our tune sees peak boost and torque at 3000rpm, getting off the line with 428awtq and carrying through to the finish line using 356awhp-- With nothing but our tune! ...

BenzBoost tends to bring in the more hardcore AMG tuning enthusiasts but there are of course the more casual Mercedes-AMG fans who want an easy, simple, and reliable power boost. That type of customer is likely to see the appeal of the Racechip GTS Black piggyback tune. ...

If both of these cars were stock it would be a good, close race. This is not a good race or a close one for that matter but that is the point. The M3 with a Pure Turbos upgrade highlights just how big of a performance difference upgraded S55 turbochargers make. ...