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MERCEDES C216 CL 500 V8 ' 06 –›, exhaust system, automotive exhaust system components
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The long-awaited Supersprint, long-tube headers for the new-generation 4-valve head, 5.4l V8 Mercedes engines, has been developed in 2005, put into production shortly after and sold through the Carlsson dealer network worldwide, as this German Tuning Company is possibly engine performance leader for the Mercedes Benz cars.
It offers a substantial increase in low and mid rpm torque, as well as in peak Hp. The Supersprint full exhaust system, thanks to its long-tube headers, metallic cats and free-flow mufflers, is the single, most cost-effective improvement for the CL 500-550, equipped with the normally aspirated, 4-valve V8 engine.
This twin pipe, oversize 2 x 63.5mm exhaust includes special HJS-Emitec metallic cats, mid-pipes with a built-in "crossover" section (X-pipe), and quad-tip, oval design rear mufflers, each with a straight-thru silencer canister. While the huge increase in performance is immediately noticeable, the overall sound is also simply amazing.
No rear muffler or cat-back system alone can equal the deep, sporty sound of this full Supersprint exhaust. |
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Rear mufflers
The Supersprint Right & Left rear mufflers use the Free-Flow design, typical of all of the Supersprint performance systems.
These mufflers come with a made in Germany, EEC homologation, which makes them road legal, worldwide. Contrary to the stock muffler system, which uses the baffled, resonated chamber design, this exclusive design not only gives the Supersprint exhaust the right sound but also ensures an effective reduction in backpressure, when mated to the full Supersprint system.
The Supersprint silencer canister tapered cross-section, its overall volume, the inner, perforated core pipe diameter, all work together to get the best out of this Mercedes V8 n/a, 4-valve engine, and ensure optimum results. Supersprint uses his exclusive, oval & tapered cross-section silencer design, which has been developed specifically for all of the Mercedes models with a R & L exhaust placed directly behind the rear wheels, like the SLK 171, the R230 SL, the W211 E, and the C219 CLS.
This particular, streamlined design uses the available space for the exhaust system at its best, and keeps the silencer boxes tucked in and away from the direct air flow running under the car chassis. This feature ensures the least wind resistance. The exclusive Supersprint muffler design also provides the right blend of exciting sound and optimum performance, while never becoming obnoxious, at any rpm. The Supersprint CL mufflers are available in the quad, 120x80mm elliptical tip design.
And since the Supersprint muffler hangers are separate from the canisters, the bolt-on system allows for a full range of adjustability upon the installation, guaranteeing the possibility to fine tune the tips position to the rear bumper skirt. |
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Resonated mid-section
The Supersprint resonator is completely flow-tru design, just like the Supersprint rear mufflers. It uses the world-known Supersprint, built-in X-pipe, a special crossover section, placed at the ideal distance from the engine, which equalizes the exhaust gas backpressure between the right and the left side cylinder banks of the Mercedes V8 motor.
The X-pipe, built inside of the resonator canister, refines the sound at all rpm ranges, enhancing the harmonic of the engine exhaust waves, and guarantees a healthy, sport sound.
The Supersprint mid-section has been made with substantially larger than stock, Oversize tubes (2 x 63.5mm Vs. the smallish 2 x 54mm pipes found on the oem exhaust), for an effective increase in exhaust gas flow.
The routing of the pipes ensures a perfect fitment and the necessary body clearance. No rubbing or rattling against the chassis while driving.
As with the Supersprint rear mufflers, this Supersprint mid-exhaust section comes with a made in Germany, EEC homologation. |
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Metallic cats, with 100cpsi monoliths
The front section of the Supersprint exhaust uses 2 metallic cats with 100cpsi rating, one cat each side.
The stock system, on the contrary, uses a total of 4 cats (2 cats each side), 2 of them (1 each side) are positioned very close to the cylinder head exhaust ports, and their rating is 400cpsi or higher.
This design has the sole purpose of providing a shorter warm-up time during the cold start phase, but at the same time it severely restricts the exhaust gas flow and compromises on the performance of the engine.
The Supersprint high-volume cats, made in Germany by HJS- Emitec, the world leader in technology for performance, metallic catalytic converters, are positioned further downstream in the exhaust system, have a much lower 100 cpsi rating, and use oversize, 70mm piping before and after the monoliths, which reduce down to 63.5mm where they meet the resonator’s inlet pipes.
The merging cones are Supersprint’s own design components, and they are made to offer the smoothest transition from the pipes to the cats.
These features guarantee a dramatic reduction of the exhaust gas backpressure, and also allow for a lower operating temperature in the head exhaust ports' area, when under a load, especially at medium and high rpm.
This Supersprint exhaust component uses before-cat and after-cat Lambda sensor ports, and is totally compatible with the car's own OBD II emission management system. |
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Headers
The key component of the Supersprint CL 500 exhaust, instrumental to best performance, is the headers.
These very special headers have been designed and developed by Supersprint' own R&D team, and they have been extensively tested on Supersprint own MAHA braked dynamometer.
While the stock headers use an ineffective log design, with extremely short, restrictive runners, made out of stamped, metal halves, the Supersprint headers feature long, 42mm o.d. tubular, individual primaries, mated together smoothly, thanks to the special, 4-1 Supersprint 70mm merge collector design.
As a comparison, the stock headers and their single outlet pipes leading to the cats have a main section of only 46mm; this means that the Supersprint headers have an extremely wider cross-section in this particular, most critical area. At peak rpm, the exhaust backpressure of the Supersprint system is just under .13 bar, a key recipe for making the best performance, while the stock system has .44 bar.
This 70% reduction of backpressure immediately translates into lower exhaust gas restriction, better flow and stronger pull at all rpm. A result this good cannot be achieved by any cat-back exhaust only, no matter which design and pipe size it’s made with.
This is the only reason why Supersprint develops and produces full headers systems, as they are the only way possible to real, solid increases in performance.
Everything else available on the market is made mostly for sound and looks. Also, the Supersprint headers design allows for an easy fitment process, which does not require lifting the motor from its mounts. This headers only fits the left hand drive CL model. |
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END RESULT
The final result of the full Supersprint exhaust system is a substantial increase in peak performance and torque, from the lower rpm range (1800 rpm), all the way the rev limiter. Each one of the individual components of the Supersprint exhaust has been designed and tested to work at their best when mated together with the others, with the specific goal of getting the most performance from the CL 500-550 engine.
This means, the optimum, overall results can only be achieved by using all of these components together. At peak rpm, the increase in performance is +38 Hp, while the torque curve is constantly above the stock curve, by an average + 40Nm, starting from the power band basement.
Last, but not least, the lighter overall weight of the Supersprint exhaust system further enhances the straight line acceleration, and the handling characteristics of the CL, by a considerable amount. |
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