turbofabricator
Well-Known Member
- Joined
- Mar 7, 2004
Everyone LISTEN TO BOB!!!!! He has the ONLY system that will cancel drone. PERIOD. Dennis Hogan came up with the idea. Sean O'brien built it. I have built a few since then, too. It is a bit pricey, though. For those that say they have "no drone" with X-Y-or Z system, has never driven a three muffler system like Bob has. I have used just about every muffler there is. I have thermal wrapped the ENTIRE exhaust system from port to tail pipes....NO change in drone! I have used harmonic weights to rid the system of drone......NO change. Three mufflers using a 3" in place of the CAT......NO change. Using the cross-flow Ultra-flow w/o the two mufflers works well, but the cross-flow with two ultra-flows in the std. location is church mouse quiet, with no drone and nice sound at WOT. No disrespect to the vendors on here, but there is NO way a single or dual 3" system will cancel drone with out killing performance with a non straight through muffler. If you think there is no drone, build one like Bob has, then compare it. You will change your mind. I HATE the drone. After back surgery, it REALLY grates on my spinal column.
Even Dennis' StageII car had a three muffler system in 3". (custom built 3" cross-flow muffler) You could hear the fuel pump and roller cam over the sound of the exhaust. BOY!could you hear them!!!!
Even Dennis' StageII car had a three muffler system in 3". (custom built 3" cross-flow muffler) You could hear the fuel pump and roller cam over the sound of the exhaust. BOY!could you hear them!!!!