When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
After seeing the Weistec thread here about their tune and headers; I had to go to their shop and see what it was all about. The benefit that I have is they are local to me so I can see what goes in behind their business and projects as well. I met with Steve the owner and he took me for a tour of their new facility. Its an amazing set up with floors so clean you could eat off them.
Anyways on to the tune- first they let me drive their car. Their shop car has both the tune and the down pipes. This thing is a beast. Remember that the GTS is much much lighter than the M157 cars and even the C Class AMG's. It also has the DCT tranny (Dual Clutch) so it transfers power much more efficiently to the ground and has incredibly fast shift speeds. So mate up all these advantages plus the tune and down pipes and the shop car RIPS!! The thing has to be close to a 130 mph trapper and low 11's or even possibly a high 10 second car. But the sound- wow the sound. So for us owners we all know the GTS sounds stupid good but this thing takes it up probably 50% if not more in decibels. But it keeps the same tone; the pops, barks, crackles, explosions though are all amplified. So suffice it to say my test drive was strong and I was sold.
I decided to just do the tune right now but will do the down pipes at some point soon. I think I like having my Huracan as the loudest car and this one will get in 2nd place. If I do the down pipes I think it would be a toss up on whats louder. Sorry no sound clips on either car but Steve can probably link one in.
I did a before and after dyno just because I wanted to see the "sweet spot" gains. Clearly this tune is a street tune with top rpm gains as well. The biggest gains in tq and hp (about 100 hp and 130 tq) are in the most usable areas of the rpm range and wow you can feel it. My short drive home yielded some open stretches and I found myself clearly going faster than I have in this car. Race mode is terribly exciting and S+ is so easy and useful. The tune changes the throttle response as well which I love. The GTS has minimal throttle lag anyways and anything perceptible is now gone. Whats also great about the tune is Steve was able to make some adjustements to create louder backfires and barks. I guess there is a metric in the ECU for this. He even told me he could set it up to shoot flames LOLOLOL but that would burn out my cats
Anyways, I highly recommend this tune if you want even more out of this amazing car. You can easily overnight the ecu (simple removal) or if you are local just stop at the shop. Another cool bit was a mother and son came up in the fathers GTS to get a tune for him (Fathers Day gift)- very cool.
I attached the dyno sheet (see PDF). It was a hotter day out here yesterday but all I care about is before and after. Remember this car is supposed to have 503 hp and 476 lb/ft of tq at the crank and now I have peak hp at 536 and peak tq at 593 at the wheels. But peak isn't the key here just look at the balloons and that's what really counts. The gains are consistent thru the range and that's what makes the car pull even harder. Steve did say the OEM turbos are a bit small so there is only so much he can safely get out of the car at the top but stay tuned for a Weistec turbo upgrade.
AMG got it right with the car and Weistec made it even better.
AwesomE results the midrange has to feel night and day that's a lot of torque for a lightweight car. I'm assuming you also were tuned on 91 octane since your from Cali? I wonder what else can be extracted from 93 octane they showed gains of up to 40whp on the M157 from switching to 93 from 91.
Also looks like you would probably get max acceleration if you shifted around 6500 rpm instead of 7000 since the hp curve falls off pretty good the last 500 rpm and you'll land in the fatter part of the curve shifting earlier
Porsche Taycan, Range Rover AB, Range Rover SVR, S Class, Mclaren 570s, Urus Hybrid (soon), M3, RS6
Can't wait to see Weistec AMG GT's racing other cars. What's the highest 911 it can beat. Also, may not be something to do with it, but can we see pictures of the Huracan please?
AwesomE results the midrange has to feel night and day that's a lot of torque for a lightweight car. I'm assuming you also were tuned on 91 octane since your from Cali? I wonder what else can be extracted from 93 octane they showed gains of up to 40whp on the M157 from switching to 93 from 91.
Also looks like you would probably get max acceleration if you shifted around 6500 rpm instead of 7000 since the hp curve falls off pretty good the last 500 rpm and you'll land in the fatter part of the curve shifting earlier
I hear that the 93 octane cars get about 40 more whp; Cali kills us!!!
Originally Posted by UrBusted
Can't wait to see Weistec AMG GT's racing other cars. What's the highest 911 it can beat. Also, may not be something to do with it, but can we see pictures of the Huracan please?
I had the tune installed as well and after driving in 100 degree heat and hard driving conditions the turbos stopped spooling. There might be an issue with the tune. Once I stopped the car and let cool off for a little it was back to normal. Has anyone else with the Weistec tune experienced this issue?
I had the tune installed as well and after driving in 100 degree heat and hard driving conditions the turbos stopped spooling. There might be an issue with the tune. Once I stopped the car and let cool off for a little it was back to normal. Has anyone else with the Weistec tune experienced this issue?
Zero issues thus far and its been a scorther the last few days. Ive had the car past 130 over and over with no issues.
May I asked what the cost of the tune? You may PM me if you like.
Thanks,
John
My pricing is a combo of things since Im doing other parts and projects with them. You can call Steve there (owner) to see what he will offer. There is their public thread with retail msrp of 2995 I think.
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.
