8th Generation Honda Civic Forum - View Single Post

blue1 · 02-12-2007, 04:05 PM

I'd suggest keeping your current exhaust...If it is too loud, then go with something more restrictive (i.e. quieter).

IMHO, the AJP exhaust by itself is not obnoxiously loud. What is obnoxiously loud is when the wastegate opens and bleeds excess exhaust gasses through the dump tube to atmosphere. I'd rather see a Y-pipe that can connect to the end of the wastegate dump tube itself that offers the user the ability to switch between having the excess exhaust gasses either vent to atmosphere (when at the track) or sent back to the exhaust plumbing and using a flex fitting (to keep it quiet during everyday boosting).

Later this month, I will be doing something similar to the above to quiet down the exhaust gasses coming out of the wastegate dump tube.

02-12-2007, 04:05 PM	#3 (permalink)
blue1 Senior Member Member Join Date: Aug 2006 Location: Maryland Posts: 3,565	I'd suggest keeping your current exhaust...If it is too loud, then go with something more restrictive (i.e. quieter). IMHO, the AJP exhaust by itself is not obnoxiously loud. What is obnoxiously loud is when the wastegate opens and bleeds excess exhaust gasses through the dump tube to atmosphere. I'd rather see a Y-pipe that can connect to the end of the wastegate dump tube itself that offers the user the ability to switch between having the excess exhaust gasses either vent to atmosphere (when at the track) or sent back to the exhaust plumbing and using a flex fitting (to keep it quiet during everyday boosting). Later this month, I will be doing something similar to the above to quiet down the exhaust gasses coming out of the wastegate dump tube.