Milltek 全套运动排气系统，搭配钛合金 GT-100 饰件。保时捷 718 Boxster GTS / Cayman GTS

DesignTek Secondary Exhaust Muffler Bypass for Porsche 991 S 3.8L



Fits:
Porsche 991 Carrera S 3.8L

These simple U/J pipes remove the mufflers that are tucked up in the rear quarter panels. Why the reason for these I do not know. Typically in the past we either see a main centre muffler or 2 mufflers with catalyst pipes. So this was the first simplest part to change out. Keeping the same diameter for a perfect OEM replacement, these pipes are straight through which not only eliminates any muffler packing or baffling, but also the weight. Each stock muffler weighs approximately 15.6lbs. The Designtek Secondary Exhaust Muffler Bypass Pipes are about 3lbs each. Now eliminating restriction, we have also saved about 25lbs off the rear end. Because this part still retained the factory headers with cats and the factory center muffler, it added a slightly deeper tone to the exhaust but not a drastic droning change that a full exhaust could. Upon revving the car out stationary and on the dyno, you could hear the tone change nicely as you past the 4000rpm mark.

Garage Notes: The pipes sometimes rub on the heatshields causing a resonation through the car. This can be sorted by redressing the heatshields but isn't a straight forward bolt up and go replacement.

The sound its self is quite impressive and very sporty from the outside but to drive causes a pretty bad droning sound under normal driving conditions. This exhaust peaks at 101decibels

According to the factories dyno test, the secondary muffler bypass pipes really start achieving performance from 3700rpm all the way to redline. With a baseline test in 3rd gear and all wheel drive (have to for the dyno and no warning lights), the car made 344HP and 289ft/lbs of torque. Based on the ambient temperature, the factories Mustang Dyno, and 91octane fuel, this is about right considering the car comes with 400bhp. With the addition of our pipes, the car put down 358HP and 298ft/lbs of torque gaining 14HP and 9ft/lbs at the peak.

Click 'Zoom in' for large parts diagram.
3606009913 replace No11/12.



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3606009913

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保时捷 991.1 专用辅助运动型排气管 DesignTek

适合：
保时捷 991 Carrera 3.4L
保时捷 991 Carrera S 3.8L

辅助运动型排气箱旨在使汽车发出更深沉的声音，这些排气箱可添加到工厂排气部件中并更换两个侧消声器罐。

强劲、强劲、动感十足。更棒的是，得益于运动型排气系统，其性能得到了进一步增强，该系统配备了经过改进的二级运动型排气箱，其声音会随着驾驶行为而变化，范围从正常道路驾驶时的强劲输出到性能使用时明显更具攻击性的音调。

单击“放大”可查看大部件图。
3606009913 替换11/12号。



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3606009923

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排气消声器旁通 X-Pipe。



适合：
保时捷 991 C2S / C4S

单击“放大”可查看大部件图。
3606009104 取代 17 号。

请注意：运动型催化转换器或旁通管没有型式批准，并且可能不合法安装在 2001 年 3 月 1^日以后生产的车辆上。它们不能在公共道路上使用并且不符合 MOT 标准，它们仅适用于赛车和赛道车。


相关参考编号
相关编号、被取代编号、交叉引用编号或替代编号，供比较之用。

3606009104

您正在查看的产品与这些编号存在交叉引用关系