Stillen Catback installed

[johnny_d]

i panicked when i saw they 2 of those isolators missing, good thing we found them off another old exhaust, but i might end up replacing those 2 because they've been out in the yard for a while

[2brian0]

It's crazy that the Stillen project car is a 3.5 and had a resonator....Is it the only one out there? Anyone else out there have a 3.5 with a resonator? Just curious at this point.....

[johnny_d]

when i talked to Kyle, he told me Stillen's V6 was pre-production, therefore it may have been different

[GStasi]

Similar problem...I have a black 3.5 Coupe CVT with Injen intake and Stillenaxel back exhaust. Awesome power over stock but at crusing speeds of 1700 to 2500 rpm there is a deep resonence inside the car. I am doing some work on sound absorbtion and vibration deadning. Specificly the trunk area and the gas tank heat shield that acts like a sounding board.

Asked for recommendation from Stillen, still waiting for a final reply. I think part of the reason is that the 2.5 and 3.5 use the same Mufflers and the problem lies with the 3.5. ( more overall db's) Putting on the rear wing this weekend.

I will keep you posted.

[johnny_d]

even after 1000 miles on it i still get annoyed sometimes. It seems that the droning is not all the time. It seems to get worse after driving a little while. I am looking at dynomat too but not sure if i'd have to get it only for the trunk or everywhere.

[GStasi]

The drone is evident when you give the slighest increase in throttle position

But, there is some improvement with insulating the trunk. I have some samples of some materials I will be working with this Sat.

I am sure that vaiable silencers would be a major helphelp...but i have got to fine the right one/size. Do some reading on apexi silencers.