Okay, I'm getting desperate here. I'll try to keep this short and sweet. I'm catless, x47r, AWR 62a upper mounts, AWR 88a lower mount and Whoosh poly hanger bushings (I mention these for a reason..). It may be obvious, but I also have no sound symposer. So far, I've tried the below catbacks:
In the end, what I’m looking for is an exhaust that simply makes consistent noise throughout the RPM range without all the harsh “boomy-ness” or drone. There’s just something about this car that doesn’t allow that to happen compared to the several other great sounding cars I’ve owned. Perhaps it requires a combo of something I haven’t tried yet..hopefully.
- MBRP
- Car sounded incredible but drone in the 3k range was horrid, especially with the AWR upper mounts
- My AWR upper mounts at this time were 70a and WAY too stiff even after "break-in" of 2k+ miles
- SOLD
- Car sounded incredible but drone in the 3k range was horrid, especially with the AWR upper mounts
- Thermal R&D
- Car sounded great still besides losing the turbo whistle that made the car sound like a tractor lol
- The drone was bad with this until I realized the 70a AWR mounts were the problem
- Switched AWR upper mounts to 62a and now I can't hear the exhaust. It's practically pitch quiet til I get on it which is both good and bad. Just not what I'm looking for.
- Car sounded great still besides losing the turbo whistle that made the car sound like a tractor lol
- CPE Nexus (with resonator)
- Car sounds amazing. No cool turbo tractor sounds, but sounds a little more unique compared to the other two catbacks.
- Between every shift over 2k, alongside the RPM drop, there's a "whooooom" sound that neither exhaust had
- From like 2800-3500k the loudness factor goes from 0-100. It's not quite "drone" but just LOUDNESS that almost sounds fake/engineered. Hard to explain.
- Cruising at 65-70mph, it's just a hair too loud. I also wouldn't call this drone, but just overall volume.
- Car sounds amazing. No cool turbo tractor sounds, but sounds a little more unique compared to the other two catbacks.
- Is it at all possible the poly exhaust hanger bushings are causing loads of noise being transferred to the cabin? Reason I ask is, my MBRP was on stock hangers and ONLY was too loud when it was in the drone range or when I was getting on the car. I swear the CPE is somehow louder more often than the MBRP was.
- Has anyone modified the Nexus as in adding perhaps a small muffler to it? I'm afraid to do this as I don't want to totally kill the sound, although I think this is a good option.
- Lastly, who has found the best 3" exhaust setup for this car? I'm having a hell of a time with this finding the perfect blend of noise and least drone possible.
- While it's not the most comparable car in terms of construction, my mk5 and mk6 GTI both had turbobacks that sounded absolutely incredible at every RPM with no drone. I'm chasing that but I think GTI >>>>>> Fiesta ST in terms of overall interior/parts quality and that's a big difference.
In the end, what I’m looking for is an exhaust that simply makes consistent noise throughout the RPM range without all the harsh “boomy-ness” or drone. There’s just something about this car that doesn’t allow that to happen compared to the several other great sounding cars I’ve owned. Perhaps it requires a combo of something I haven’t tried yet..hopefully.
Last edited: