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I was a bit skeptical but the engineering seemed solid. Shipping was really fast and everything arrived packaged very well. Install was easy and straightforward. I figured I'd drive the car in the morning on the way to work and see how it felt.
Yeah that plan lasted about an hour before I had to make a "grocery run". The difference was apparent as soon as I gave it half throttle. It's a pricey upgrade but well worth it. My car is stock until next week when I get a tune.
But still I share my experiments with UPD with BMC filters when my car was in stage 2 custom tuned and still on stock turbos. I did run many runs with Dragy and gain zero. So no butt dyno results pure Dragy.
Blackboost intakes are proven to work but the price tag is bigger than UPD. I did Dragy several times with UPD/BMC combo when I was trying to go under 11s on 1/4 mile. I couldn't do it. I did reach that goal after blackboost install.. M278 when still on stock turbos, I don't know would even blackboost help any. No one that I know of haven't measured that by Dragy or dyno.
Last edited by PekkaH; Dec 13, 2021 at 09:47 AM.
Reason: typo
So how much do they actually charge for these spacers?
If I remember correct I did pay 200 dollars for spacers only without filters.
For Raven CLS I don't want to say bad for you or your build I just wanted to share what I did found out and what happen to me. So keep going and tune up more!
you may want to talk to Morendi. I did TCU tune with him and I like it. $750 well spent. 4.16 /12.2 or so just tcu tune and the upd with k&n. I ran OE tune and tried a few tunes and I would get this weird power cut off in 5th. It turns out was over boosting. Morendi did a bench tune, then logged it, saw it and changed the tune based on my specific car setup.
CLS400-3"downpipes cls63 exhaust and bbk BMS intake AMR rv3.1, 12.1@119mph 1.9 60'
Originally Posted by cls5504matic
you may want to talk to Morendi. I did TCU tune with him and I like it. $750 well spent. 4.16 /12.2 or so just tcu tune and the upd with k&n. I ran OE tune and tried a few tunes and I would get this weird power cut off in 5th. It turns out was over boosting. Morendi did a bench tune, then logged it, saw it and changed the tune based on my specific car setup.
agreed^ morendi is a great tuner. Follows up and offers help. Got the tcu tune and car is night and day different. Now need drag radials to get better times.
2013 Weistec 540/715 tuned CLS 550, 2008 E350, and '07 Jaguar S-Type R
I've been thinking about getting that setup for my '13 CLS550 w/Weistec 540/715 tune but have heard reports that the gains are minimal. I see they are on sale, maybe I'll give it a try.
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
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