I saw one at my dealership this morning and I'm interested in buying it if it checks out right.

It has one exhaust. Twin exhaust tips but one exhaust.

I had a really frowny look on my face and it was obvious what I was thinking of after lying down on the showroom floor to inspect the bottom because the salesman rushed to tell me that the AMG Cabriolets have only one exhaust because of the spare wheel well. I know about the regular CLK Cabriolets having one exhaust pipe since I already have two of them.

Is this true? A 475 hp car has just one exhaust pipe? The AMG twin exhaust tips are meaningless since its just one exhaust pipe. Not to offend, but I find it a bit poser-ish.

I honestly don't care about the performance hit vs. the coupe since I have a different car for street performance, but I care a lot whether I'm buying a genuine AMG car.

Thank you.

 

yup

CLK63 AMG coupes had quad exhaust. Cabs had one sided.


Also,

2005-2006 CLK55 AMG Coupes had true dual exhaust with quad tips. They used the center spare tire well for this one. Cabriolets had one sided exhaust.

2003-2004 CLK55 AMGs were one sided as well, coupes and cabs.

 

Thank you.

Is there any impact to peformance at all? If I were to look at the 2003-2004 CLK55 Coupes, are they any slower than the 2005-2006 CLK55 Coupes?

Also, I understand that Europe and the rest of the world got CLK63 Coupes but America only got CLK63 Cabriolets. Is that correct? I wonder what the thinking was.

 

CLK63 Cab , Just start it up and if the sound does not say AMG to your ears, do not buy it. If in doubt, check for drilled slotted 6 piston calipers on the front and also drilled and slotted 4 piston calipers on the rear. AMG seats are hard to duplicate, 200 mph speedo, and of course the 6.2ltr power house bolted to a 7 speed. You should feel your heart pounding in your chest just looking at it. My wife absolutely loves hers. One good point, no Heat Soak, LOL Good Luck

 

I don't think any non bs clk had true dual exhaust. They go from single to dual aftervthevrear sway bar.

The non bs convert clk63 is a fast car stock should be low 12's. I'd put headers and tune for solid 11's.

 

Thanks for clearing that up. Always thought it was true dual.

 

Thanks so much, Critter. I will start up and drive it this weekend. And the car is for my wife too. Right now, she's stuck with a 2008 CLK350 Cab and she's not too thrilled because I bought myself a fast toy recently (530hp stock).

I gave her a choice between the CLK63 and the E550 Cab (no AMG except for the E63 sedan). The decision was easy, and she rolled her eyes at me. The woman has a genuine lead foot, so I'm not going to modify it for even more power. She drove a couple of competitor brand cars and was unimpressed (those would impress anybody else lol). I did suggest a Black Series, but there's no backseat in a BS, so that idea was instantly nixed. Plus, its not a Cab.

My high school kid has a CLK320 Cab that I'm going to get rid of it since the M112 is getting up in the miles and it lacks the amenities, and since the kid doesn't need anything better than a CLK350. I already had to pay for a 50 mph in a 35 mph ticket and I hate the insurance companies.

 

05 CLK55
combines after the cats and splits again in the back:

 

My question remains whether there is any impact at all to performance. I would imagine branching out again after the Cats makes for a somewhat less restrictive exhaust system, but the effect is probably not significant. If there is less backpressure, then the Coupes and the Cabriolets would have to be tuned differently, but the dealer tells me that they are not. In fact, the dealer insists that the Coupe and Cabriolet engines perform the same. The Coupe should have a more rigid frame and should handle tighter, but that is also debatable according to the dealer. Of course, he wants to sell me a car and is happy to feed me a truckload of BS if he needs to. Is the Coupe louder? Probably, but I don't know. And even if the Coupe is louder, the Cabriolet with one muffler probably sounds the same from the cabin when the top is down. I'm still not buying the twin tips/quad tips thing. Seems to me to be less functional and more about show. I think I've seen a Brabus exhaust somewhere with six tips and it looked just ridiculous.

 

Wifes CLK63 on startup is louder than my E63 with quad tips, stating that the CLK is no slouch and does not seem to suffer for the reduced number of tips. The exhaust pipe diameter is larger going in to single muffler but there seems to be no restriction. If you look at 0-60 times for both CLK and E63 there is little difference something like .1 sec dif. Traction does seem to be a issue as the CLK with ESP on slowly feeding through first gear, go into second smoothly then apply throttle the esp will reduce power at about 55-60 mph because of wheel spin, little yellow triangle flashes and it backs out on power. Have read that the HP dif from 475/485 thereabouts on the CLK compared to the 507 is all about throttle plate positioning. Meaning the CLK throttle plate only opens up to 80% of wide open whereas the E is 100%. Could be wrong but to reiterate this Cab is no slouch. If your new toy is the Porsche and standard at that I would suspect that your wifes' car the CLK63 will be right at your side, top down and her grinning ear to ear. Plus there is room for four comfortably.

 

Plus you can get the tune to get the TRUE WIDE OPEN THROTTLE..... the tune fixes this de-tune effect.. GL w/ Decision.

 

LOL exactly you can get the tune, but then the wife would have a faster car than the 911
I have not told my wife of this throttle detune, ha ha the car is fast enough as it is.

 

I am an original owner of a CLK63 Cab.

IMO the exhaust is not detracting from any performance. Yes there is probably more horsepower available with intake, exhaust and tuning, but the car is fast and accelerates very well as is.

What this car needs is a limited slip differential upgrade/ installed. The car needs rear wheel traction...that's the ticket to improve performance.

 

Haha... I don't think that's in the works .

It's not the new 991 (I wish!). It's an older 997TT with PDK and it's also an S model. So far, I've been embarrassed by a GTR (driven by a guy willing to exercise every gizmo and me not willing to strain my newly acquired car) and a modified Z06 Corvette that no longer looked like a Corvette hahaha, and I lost to a 458 Italia before both of us backed off. Its another cab, so it's slower than the coupe, and the backseats are a total joke. If I see an Aventador, I'll be sure to just bow out I was trying to egg on a FF the other day but he wasn't taking the bait, and I think I would lose anyway.

Anyway, I am maximally excited and I will update after this weekend. We're taking the car out on the road for real.

 

Not sure where you are from, but here in Canada we are having a heat wave 20c and sun great for this time of year, top down for sure ha ha.
Just be prepared for ear to ear grins that make your face hurt ha ha
Enjoy
Don't forget the sunscreen
When you purchase, make sure you get two key fobs, put it in the deal if they only have one.

 

Check it out but I believe they only built 143 of these cars in 07. Enjoy the car but watch out for "Permagrin", this is when your face takes a long time to stop smiling, ha ha and of course do not forget the sun screen

 

I think that my CLK63 actually sounds better that my '09 E63 (both cars have stock exhaust). My car ran 12.6@116 when it was stock. With minor mods (ECU/filters) it is now in the 12.3-12.4 range. Really could benefit from an LSD though.

 

It sure is nice to hear some positive vibs regarding CLK63AMG...I hardly hear or see anything about this car. I have had mine for fours years and really enjoy the car.

 

Only 143 07 CLK63 Cabriolets' built, you will not see many around
The car could use a LSD though!

 

My wife snarls at me most of the time anyway, The car makes it worthwile though. My cab is dual with the crossover all the way to the rear muffler with twin chrome AMG tips. The car is in sleeper stance but punches hard. The exhaust note is in tune with the intake roar and kind of reminds me of the 77 Trans-AM in Smokey and the Bandit.

Gator

 

I just picked up an '08 CLK63AMG CAB here in Australia and was wondering about the single exhaust with the twin pipes. Great thread and thank for clearing this up.

Is it worth modifying?

I have my permagrin already after a week...

 

If I had one I would install headers and tune just like the c63 guys. Gl

 

Or if really deep pockets weistec blower!!!

 

You could modify, But , Why bother the car is in effect a sleeper but when you need to GO it does not disapoint. The last think you need when the top is down is not being able to hear the gasp from the car you just drove by, ha ha
Just enjoy it is truly a gorgeous machine.
LSD should be first on the list if you want to mod.
Face cream to reduce wrinkles from perma grin