Nismo R-Tune Catback Exhaust

NissanTracker · 11-08-2021, 11:27 AM

I'm actually in the same boat. Supercharged with TG's A-A kit with Motordyne TDX2. I was blowing cats so went to FI resonated test pipes. Loud as hell.

What I did was added high flow cats further down stream to the Y pipe. 2 100 cells on each side. I also added Hemholtz resonators to the test pipes (similar to the Motordyne ART, but with additional resonators on the FI TPs).

Helmholtz resonators help a ton. Just bottle resonators with caps on them. Technically they need to be sized to cancel out rasp/drone. They do a great job adding a deeper tone.

Quote:

Originally Posted by geeitup

Sorry for the lack of response. I replaced with quietest FI I could get. I am supercharged running headers and test pipe - its still louder than I like, and may take the headers off. But I'm not a spring chicken and have some hearing loss already.

Still working on pictures, but the only thing of note is a bit of rash on the braided flex couplers, but nothing that alters function.

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