MustangWorks.com : Ford Forums - View Single Post

Dave_mustang_50 · 03-19-2002, 05:41 PM

There is a big dif. in sound with an off road pipe. I had my long tube headers with the hi flow cats when there was emmissions, then went off road H pipe after they stoped testing. I gained 7 HP on the dyno at the wheels and it sounds soooo much meaner at WOT. I do have 3 chamber flows though, so they quiet the car down too. Hope this helps

03-19-2002, 05:41 PM	#2
Dave_mustang_50 Registered Member Join Date: Aug 1999 Location: New Port Richey, Florida Posts: 483	There is a big dif. in sound with an off road pipe. I had my long tube headers with the hi flow cats when there was emmissions, then went off road H pipe after they stoped testing. I gained 7 HP on the dyno at the wheels and it sounds soooo much meaner at WOT. I do have 3 chamber flows though, so they quiet the car down too. Hope this helps __________________ 1969 Mach 1 351C with a c6(for now) Sold 92 Rag Top GT Procharged & intercooled DSS 331 LC Holley Systemax 2 Intake, Edelbrock RPM Heads,E 303 ,blow thru air meter, race bypass, 42 pph injectors,65mm tb,1.7 rr, Mac long tube headers w/off road H pipe, Force 2 catback, TKO,Pro 5.0, K&N, Alum DS,3 core radiator, subframe connectors,3.73`s, Nitto DR`s and a Heavy Foot.