Hi All,

I am a new member. I have the 2007 porsche TT and just installed the gmg exhaust system. there were some annoying noise from the exhaust that I am not sure if it is so called the droning sound whenever I step on the accelerator. what is the cause of this and what is the fix

Thanks
Daniel

 

I think the Milltek should fit fine. Sound wise I think its more on the Euro side versus muscle sound. MTM is on the quiet side....perhaps a little bit louder than stock. O.CT exhaust is really aggressive, but does not drone inside the cabin at all.

 

Gents

Thanks for all the kind words on the GMG WC Sport exhaust for the RS4.

Here is a link to the system and there are several video's on you tube just search GMG Rs4 and you will find plenty.


http://www.gmgracing.com/audi_exhaust_gmg_wcrs4.shtml
We are offering a special for 6 speed members on the exhaust system through Dec 15th ( Free Shipping in the lower 48 states)

We have systems in production now so be sure to place your orders before the holiday rush as these systems are usually on back order.




GMG WC-RS4 Sport Exhaust system for 2007+ B7 RS4
GMG introduces its WC (World Challenge) sport exhaust system for 2007+ B7 RS4 owners. The GMG WC RS4 systems offers the discriminating RS4 owner the performance, power and sound worthy of the high revving RS4 engine. Designed, tuned and built in California to GMG's stringent standards. The cat back system is 100% emissions legal and is a direct bolt on replacement for the factory system. Made of T304 Stainless steel throughout (all tubing, inner core and wool packing are stainless, most other brands do not offer this) the system is 20 Pounds lighter than the factory system, offers two larger GMG specific tips, and a center sport resonator which eliminates unwanted cabin resonance. The proprietary cross over center section not only offers additional power by balancing exhaust gas pulse coming from the engine but also adds to the unique sound that only the GMG WC system can offer.

Systems come fully polished and are a direct bolt on replacement utilizing your existing factory down pipe to exhaust clamps ensure no exhaust leaks.

Fitment: 2007 B7 RS4 models USA and world wide models only.

Performance increase +10-12hp



* Wholesale inquiries welcome
** International shipping available
*** Installation available at GMG

Customer Testimonial

" There is no highway drone with the GMG exhaust. In low RPM's, it has a nice loud growl, but in the higher RPM range, it quiets down quite a bit, unless you are going at full throttle. Oh, and the sound when you lift off the throttle, it is amazing. It really is the ideal exhaust for a daily driver, loud around town and quiet on the highway. Looks great thermal coated too! Highly recommended!" Member - 6speedonline.com

"GMG installed one of their first units on my RS4. I've had about 15K miles on it. It is significantly louder than stock in sport mode but not any louder than the Milltek resonated exhaust. The tone is much deeper and better than both stock and the Milltek. It is loudest between 2k and 3k but no drone. At higher RPMs the exhaust does not drown out the sound of the big V8. The burble when you let off the throttle is one of the best sounds the exhaust makes." Member - 6speedonline.com