Solo 3inch catback muffs

[jcmGT]

Got a killer deal on a 3" solo catback. I have a LSA, based on airflow, 3" is preferred over my true 2.5inch setup. I do have kooks mids and catless. My 2.5" was with magnaflow muffled X, vibrant resonators and VT's.

I knew the 3" would be loud outside, and it does not disappoint. Interior, the 8 has great sound insulation as I took a audio spectra, the levels are virtually the same. Out back is different story.

I have a set of oval cutouts - what mufflers have been used to tone it down? I still have my stockers, with them and the cutouts I may be fine. Am thinking to also go with VT. Comment? Experiences?

Thank you in advance

[wastedrubber]

Subbed, i have a similar setup and would like to tone it down a bit

[jcmGT]

Figured I'd follow up.

Spent some time tuning the solos. Sound recording at multiple RPM and pedal positions, then used Audacity for spectral analysis along with my ears to get the solos tuned. I also fabbed up a set of Gibson CFT superflows in an attempt to tone it down. The CFT's provided a deeper voice, you could tell the difference between the two sets. The CFT's had little drone, - more than the tuned solos, less than the out of tune solos. Both systems received compliments, I think the CFT got more as they were deeper sounding.

In the end, I went back to stock GT mufflers, modified for the 3in slip fit inlet. These are almost as quiet as when the car was new, blower whine is clear now. To have the loud option, a set of QTP oval cutouts are on the GT muffler inlet pipes. Hopefully my days are done playing with exhaust for a while.


36830925615_dd0664ebe8_b.jpg

[STL_G8GT]

Figured I'd follow up.

Spent some time tuning the solos. Sound recording at multiple RPM and pedal positions, then used Audacity for spectral analysis along with my ears to get the solos tuned. I also fabbed up a set of Gibson CFT superflows in an attempt to tone it down. The CFT's provided a deeper voice, you could tell the difference between the two sets. The CFT's had little drone, - more than the tuned solos, less than the out of tune solos. Both systems received compliments, I think the CFT got more as they were deeper sounding.

In the end, I went back to stock GT mufflers, modified for the 3in slip fit inlet. These are almost as quiet as when the car was new, blower whine is clear now. To have the loud option, a set of QTP oval cutouts are on the GT muffler inlet pipes. Hopefully my days are done playing with exhaust for a while.


36830925615_dd0664ebe8_b.jpg

Thanks for the update, good info.