3.3TT Thermal R&D Catback

[Kamauxx]

This is exactly what I am dealing with currently.. but mine is all the way to almost 2500 RPM..

When I do WOT, let off or above/below that range.. the exhaust is almost factory sounding from inside..

Okay, so we're definitely referring to different sounds when we say drone (or the same sound at different times).

So when I accelerate I get a deep bass note from the exhaust (I think that's the sound you're saying is drone). This is something I expect, since I'm on the gas and higher in the RPM ranges to get up to speed.

The second I release pressure on the accelerator to maintain a certain speed, let off the accelerator all together, or set cruise control the sound completely disappears and sounds factory as you've mentioned (13-1700ish RPM, depending on speed). This is what I'm referring to when I say "no sound/drone at cruising speed".

My definition of drone is a constant brrrrrrrrmmmmmmmm noise that drones on from the exhaust that feels like it's inside my brain when the car isn't under load. It causes music to have to be turned up and makes normal conversing volumes impossible.

 

[Daniel @ K8 Stinger Store]

My definition of drone is a constant brrrrrrrrmmmmmmmm noise that drones on from the exhaust that feels like it's inside my brain when the car isn't under load. It causes music to have to be turned up and makes normal conversing volumes impossible.

Correct. This is drone ^^

 

[Daniel @ K8 Stinger Store]

We've got a HUGE announcement coming soon for those Stinger owners that live in California and thinking about picking up the Thermal R&D Exhaust for their Stinger!

Stay tuned!!!

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[Daniel @ K8 Stinger Store]

K8 Stinger Store is excited to be working directly with Thermal R&D Exhaust to offer local customers $40.00 off a brand new Thermal R&D exhaust for their Kia Stinger 3.3T PLUS FREE INSTALLATION directly by a Thermal R&D technician at their shop in Lancaster, CA.

This is a limited opportunity and we have ONLY 3/5 spots left!!! Please direct all inquiries/interest to Sales@K8StingerStore.com to reserve your spot NOW!

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[Ucinn]

Let us know when you decide to come to the correct side of the nation

 

[Daniel @ K8 Stinger Store]

Let us know when you decide to come to the correct side of the nation

Well I personally am on the east coast and would LOVE to offer a promotion like this for my fellow Stinger friends

We'll see what I can get cooking out here in the future!

 

[Billy M]

A Houston or Dallas outlet would be cool

 

[Mrc3.3]

Chicagoland would be even better.

 

[Socalstinga]

This is exactly what I am dealing with currently.. but mine is all the way to almost 2500 RPM..

When I do WOT, let off or above/below that range.. the exhaust is almost factory sounding from inside..

This is why I keep bringing up the vehicles resonant frequency.. It's just like a speaker cabinet.. A driver when placed in a box will excite the “Q” or resonance magnification.

I think I know what you're saying...mine, on acceleration (not wot), has a particular reverb/vibrating sound in the cabin from about 1500-2200ish rpm. I don't believe this is the exhaust, but the acoustics within the hatch that is the main cause of the reverberation. leads me to think this would be common with all of the exhaust systems...

 

[RandallK]

Exactly... I need to find time to work on a few theories..

1. Place rubber in between the exhaust hangers (looks to be bolted in place) and the car. This should lesson any energy transfer from exhaust to car.

2. Pull interior panels and put some sound damping in place to reduce resonance..

I think I know what you're saying...mine, on acceleration (not wot), has a particular reverb/vibrating sound in the cabin from about 1500-2200ish rpm. I don't believe this is the exhaust, but the acoustics within the hatch that is the main cause of the reverberation. leads me to think this would be common with all of the exhaust systems...

 

[NobleCrow]

For those with a thermal, any updates after long term use? Sound, quality, drone, etc

 

[Kamauxx]

For those with a thermal, any updates after long term use? Sound, quality, drone, etc

I think I've got 4 or 5k miles on it (not sure exactly when I installed it). Sound is about the same. Still no drone.

 

[Socalstinga]

Exactly... I need to find time to work on a few theories..

1. Place rubber in between the exhaust hangers (looks to be bolted in place) and the car. This should lesson any energy transfer from exhaust to car.

2. Pull interior panels and put some sound damping in place to reduce resonance..

I’ve tried using the sound suppressing spray, helped a little bit but still present. Originally tried the sound mats but even the thin pieces were a bit difficult to reinstall the trunk and panel covers over.