Tuned and passed smog yesterday in CA
Thread Starter
Member
Joined: Oct 2021
Posts: 107
Likes: 34
2012 CLS550
Tuned and passed smog yesterday in CA
FYI I'm running the Weistec tune, I got it last December and was expecting some problems when I went to get smogged. I'm running the tune, UPD intake, and all resonators deleted, but the cats are still in place. They were in and out so fast I knew I failed. But she said that it passed with zero issues. So for those of you wondering if you can pass smog with a tune in CA, the answer is yes. I didn't mention to the shop that the car was tuned because I didn't want them to do anything any different.
Newbie
Joined: Jan 2024
Posts: 14
Likes: 16
From: Orange County, CA
2014 CLS63 S AMG
FYI I'm running the Weistec tune, I got it last December and was expecting some problems when I went to get smogged. I'm running the tune, UPD intake, and all resonators deleted, but the cats are still in place. They were in and out so fast I knew I failed. But she said that it passed with zero issues. So for those of you wondering if you can pass smog with a tune in CA, the answer is yes. I didn't mention to the shop that the car was tuned because I didn't want them to do anything any different.
Newbie
Joined: Jun 2022
Posts: 3
Likes: 1
From: North Carolina USA
2018 CLS63s
Hello, I had the Weistec stage 1 tune for a year. On avg took my total stock car from a best of 3.68 0-60 and a 11.72 1/4 to a best of 3.29-3.35 and a 11.35-11.25 in the quarter in good weather. I am now fully weistec stg 2 with cat less DP and Mid pipes. Best 0-60 so far is 3.15 (wo roll out) and an 11.09. With better weather and some weight reduction (spare tire etc) should be close to 3.0 0-60 and hoping for 10.85 1/4. No TCU tune. Just starting into looking at TCU tune. Trying get advice on how much will decrease those times via letting more torque used in the gears. Also was thinking black boost but again not sold on that over a tcu tune.
Newbie
Joined: Jan 2024
Posts: 14
Likes: 16
From: Orange County, CA
2014 CLS63 S AMG
Hello, I had the Weistec stage 1 tune for a year. On avg took my total stock car from a best of 3.68 0-60 and a 11.72 1/4 to a best of 3.29-3.35 and a 11.35-11.25 in the quarter in good weather. I am now fully weistec stg 2 with cat less DP and Mid pipes. Best 0-60 so far is 3.15 (wo roll out) and an 11.09. With better weather and some weight reduction (spare tire etc) should be close to 3.0 0-60 and hoping for 10.85 1/4. No TCU tune. Just starting into looking at TCU tune. Trying get advice on how much will decrease those times via letting more torque used in the gears. Also was thinking black boost but again not sold on that over a tcu tune.
Newbie
Joined: Jun 2022
Posts: 3
Likes: 1
From: North Carolina USA
2018 CLS63s
Yes have seen most companies recommend doing both. Weistec I'm have been very happy with. But trying to get good info from them on their TCU tune is hard to get. Like what are the gears raised torque limits? Any real world street performance gains? I rarely go to a drag track mostly street pulls 0-60 40-100, Blackboost not sold on as again very few real world performance provided. I have seen a few posts videos but nothing to make me run out an purchase. Going to look into the Euro charge TCU tune.
