Stock Catback Limitations with Upgraded Turbos + Fuel + E85 Race Tune?

[DangerBrave]

Vibrant Ultra Quiets installed. Drew@Tim’s Custom Exhaust exceeded all expectations (under promised and over delivered - not easy to find). Velvet under medium throttle, V6 twin Maserati under WOT. The tone is pleasing during the entire RPM range and the sound level is appropriate for throttle % with all drone removed. I’m trying to be as descriptive as possible as the quality of the sound - and difference between the previous AWE 3” exhaust only - would be lost on YouTube. Mission accomplished.

I recommend Drew for the Minnesota ST owners; he has the recipe down and prioritized customer experience and expectations. @Beerman thank you very much for the recommendation.

 

[UNBROKEN]

Did he weld both ends? Should have left the front as a slip joint for future serviceability.

 

[DangerBrave]

@UNBROKEN I’ve learned a lot from you - thank you for all you’ve shared. Yes but that’s what I specifically asked for, and he confirmed prior to cutting/welding via phone call.