Bought the car with straight pipes.

The volume was perfect. Loud enough to enjoy but not overly loud cruising on the highway. Didn't have it long enough to notice any droning so can't comment there.

But hated the unrefined tone and felt it didn't match the car. Also during idle you can hear the unbalanced pulses so you hear like this empty puff making it sound like you have low compression. This airy puffy sound is also more pronounced lugging along parking lots when you hardly reving the car. I hate this sound on all my V8 cars.

So then I went with an x-pipe based on all the raving reviews of other members here. Big mistake as far as volume. I lost all volume but gained a better tone but still a bit raspy. Also cured the low compression sound I hated.

But the more I drove it on the highway I found a droning spot and is now driving me nuts. On the highway around 50-60 mph probably in 6th gear if you try to accelerate before it downshifts there is drone, it's bearable but on long trips I'm not trying to floor it all the time.

So I met with another member with a stock 4.8is exhaust and to me it sounded the best. It has a much deeper tone and loudness wise it was almost exactly the same, x-pipe was slightly louder, marginally. But it has the best tone out of all the other setups I've heard.

So this is why I decided to try the the stock resonator and if I want to change the sound, replacing the mufflers is the way to go.

I plan on buying a used set of 4.8is mufflers to chop it up and try all different types of mufflers till I find the sweat spot.

On my mustang I must have gone through 10-15 different exhaust setups until I was satisfied lol


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2005 Imola 4.8iS