Bassani Exhaust...Resonation?

[pumpkinfish]

I hope this is in the right place, if not can a mod move it to the appropriate place.

My current setup is as follows:

C&L CAI, Ford Racing Headers and I just installed the Bassani axle-backs.

After installation of the Bassani’s, I am getting a lot of resonation throughout the car and it is causing a serious rattle in the rear interior somewhere. I believe it might be the speaker grills, but I haven’t had time to investigate. Also, when I am driving around town, I am getting a serious drone around 30-40mph. Is this normal for the Bassani axle-backs? I also have the Bassani X-pipe with high flow cats and I am debating if I should even put it on. I am thinking as it is, I am a little too loud. I noticed the CAI made the stock exhaust with headers a lot louder and the axle-backs just upped the ante.

Bottom line is, if I add the Bassani X-pipe, what will happen to the sound? With all the rattles that I am now getting and the drone, is it worth keeping them on? My ultimate goal is to have a beefier sound than stock, but I want to be able enjoy the car as it is my daily driver. Is Bassani that answer or should I look elsewhere? To give you an idea of what I am looking for, the new GTO is about what I want in terms of sound.

 

[Doc GTO]

When I added my x-pipe it made my exhaust quieter. The x may may tame it down for you and give you a deeper tone which may decrease the resonance. Give it a try.

 

[delurker]

Strange - I don't have my headers installed yet, but with CAI and Bassani axle-back, I don't get any drone. Pretty quiet in the cabin so long as I'm not on or off the gas, just cruising.

 

[pumpkinfish]

Strange - I don't have my headers installed yet, but with CAI and Bassani axle-back, I don't get any drone. Pretty quiet in the cabin so long as I'm not on or off the gas, just cruising.

Mine is quiet off throttle too. Sorry I should have posted that. The drone is when I am giving the car gas to stay at 30-40mph, around 2000 rpm I believe. It just goes through the car. I had the car in the dealer two weeks ago for a dash rattle with the stock exhaust and it was fixed. Now I can see them telling me it is due to an aftermarket exhaust and they can't help me. Which is fine and I accept that but I am just going crazy with the drone as I stated above.

I'll try the X-pipe, but need to get it to the shop as I am not comfortable doing something like that in a driveway on ramps.

 

[delurker]

No vibrations here.

 

[CPman]

I also had the dreaded drone. In my car it was mainly under medium to heavy acceleration in fifth gear at hi-way speeds. I placed dyna-mat on the floor under the rear seat. It changed the tone enough to make it pleasurable instead of annoying.

 

[BadAndy72]

I've got some drone at 2000 RPM; it's not a problem when cruising at constant speeds though. I'll probably do the dynamat under the rear seat and prob'ly in the trunk too...

 

[delurker]

I should probably add that there's a crapload of dynamat in my car from the audio installation.

 

[FartBoy]

With any aftermarket Exhaust System you will experience a little drone in the cab. Bassani is the least of the aftermarket systems. Try calling Bassani to see if they offer baffles for the 05GT.

 

[05gt]

Make sure the exhaust isn't rubbing/touching anywhere under the car, I had a B&B exhaust on a 93 vette and the muffler would ride up and touch underneath and it made the resonance twice as bad.