Lone Star Stangs | The Texas Mustang Club - View Single Post - Cost of Installing True Dual Flowmaster 40's on a V6

VIC · 02-08-2008, 01:58 PM

When I got mine at Northwest Automotive I went along with their recommendations. They stated that for a V6, dual 2 1/2 inch pipes were too big and to go with 2 1/4 inch as you need some backpressure. Also did not recommend an H pipe as the V6 firing order did not produce any uneven pressure, but they would install an H pipe if I wanted it. I also bought the right side GT hangers with the rubber bushings from Ford so they didn't install some cheap hangers. They were about $15.

02-08-2008, 01:58 PM	#15
VIC The "Senior" Member Join Date: Jun 2003 Location: Home of the '99, '03, '05, & '07 NBA Champion Spurs Posts: 2,003 Trader Rating: (0)	When I got mine at Northwest Automotive I went along with their recommendations. They stated that for a V6, dual 2 1/2 inch pipes were too big and to go with 2 1/4 inch as you need some backpressure. Also did not recommend an H pipe as the V6 firing order did not produce any uneven pressure, but they would install an H pipe if I wanted it. I also bought the right side GT hangers with the rubber bushings from Ford so they didn't install some cheap hangers. They were about $15.