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-   -   Invidia Catback Owners - Durability Issues (http://www.the370z.com/intake-exhaust/135031-invidia-catback-owners-durability-issues.html)

RanRich 10-22-2020 02:29 PM

Invidia Catback Owners - Durability Issues
 
I bought an Invidia Gemini system brand new from a vendor on Facebook a few years ago, currently has MAYBE 25,0000 miles on it, and its developed a metallic rattle/volume increase (think "BLAT" type sound) in midrange RPM under heavy throttle input.

Exhaust was completely fine until a recent drive to CO Springs, where on arrival it developed this characteristic. Took it to a shop to check for leaks and nothing was found so I'm wondering if the excess heat from 8+ hours of driving ended up hurting the resonators or mufflers. No rattles found when poking at it on a lift either.

Anyone else with an Invidia run into this issue? Current set up includes Stillen G3 and test pipes.

Cyber370 10-22-2020 03:58 PM

Since it’s a straight-through exhaust, there are no baffles so that’s not it. But it could be that some of the perforated material in the resonators or mufflers broke off. But, if I had to take a guess I’d bet it’s one of the external welds (hangers, reinforcement, etc.) that cracked. This happens to a lot of aftermarket exhausts.

Rusty 10-22-2020 04:30 PM

This past summer. I had the tack welds that hold the perforated metal break inside on one of my FI tips. I couldn't hear it inside the car. My wife herd it when I started the car up and backed out of the garage. I took my mig gun and put some new tacks on it. :tup:

RanRich 10-23-2020 12:08 AM

Quote:

Originally Posted by Cyber370 (Post 3966986)
Since itís a straight-through exhaust, there are no baffles so thatís not it. But it could be that some of the perforated material in the resonators or mufflers broke off. But, if I had to take a guess Iíd bet itís one of the external welds (hangers, reinforcement, etc.) that cracked. This happens to a lot of aftermarket exhausts.

Iím thinking something cracked or tore in the perforated section, because when under the car knocking around on resonators or mufflers we couldnít find a rattle and nothing sounded loose. Hangers looked fine, plus this is an exhaust sound characteristic, not just a buzz/rattle. I canít be the only Invidia owner with this issue so I figured Iíd fish


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