SRT-MIKE
Full Access Member
Figuring I had not much to loose (except a tip for my friend at the muffler shop) and something to gain (the possibility of a better sound), I took the "Mythbusters" approach and had a 2.5" section of tubing joining the catless mids, upstream of the stock muffler.
My friend pulled the exhaust muffler and showed me the unobstructed, straight-flow configuration, indicating that without some backpressure there would be very little, if any gas transfering through the "H". He advised against it, stating I might not get the effect I was hoping for... but I asked him to proceed.
He tack welded a jig before removing the mids, carved out a half semicircle from both pipes at the point where they come close together, masterfully fabricated a crossmember that fit perfectly over both holes, and layed a nice weld bead over the joints.
The results:
Seems my friend was correct, in my perception the sound remained exactly the same in quality and intensity, and the popping on deceleration was unchanged.
Myth busted!
My friend pulled the exhaust muffler and showed me the unobstructed, straight-flow configuration, indicating that without some backpressure there would be very little, if any gas transfering through the "H". He advised against it, stating I might not get the effect I was hoping for... but I asked him to proceed.
He tack welded a jig before removing the mids, carved out a half semicircle from both pipes at the point where they come close together, masterfully fabricated a crossmember that fit perfectly over both holes, and layed a nice weld bead over the joints.
The results:
Seems my friend was correct, in my perception the sound remained exactly the same in quality and intensity, and the popping on deceleration was unchanged.
Myth busted!