O/R Pipes

[FRDRCING]

Best place to get a o/r y and a set of mill's for our trucks? How does it help performance wise after no cats vs. high flow cats? What would you recomend cats or no cats?

[03'svtlight]

Terry says you lose torque down low.

[PoorSvtman]

Terry says you lose torque down low.

You will lose some low end but if your boosting more than stock I dont think high flow cats will hurt any. Your making it breath more so it needs to exhale better. Thats my $0.02

[cpeapea]

never lost any torque here, i used to run around town with open headers, man it was sure annoying though

[ken cryder]

never lost any torque here, i used to run around town with open headers, man it was sure annoying though
did you ever dyno it and see the difference .


it takes the proper amount of back pressure for the s/c to work at it's maximum.i run a cross over before the mufflers and spin tech mufflers . after three exhaust systemsi like the power you get out of the spin techs for the money. jmo

ken

[cpeapea]

yea i had a dyno with cutouts on and off in the same day, i have the chart SOMEWHERE (i lose things alot) and i had a 5hp gain up top with no lowend loss. meh, everyones truck is different i spose