davidk1078

I work at a ford dealership an a guy had an F 150 at the Y in exhaust had it cut off and run true duals out the back is there a big difference in horsepower verses a single out

FANGS99

But a loss in down low tq

FANGS99

When I do my exhaust it will be 2 1/2 inch pipe from the manifolds to the high flow cats into a 3 inch Y to a 1 in 2 out magnaflow and a lightning style exit

davidk1078

What I want but coming out behind tires

davidk1078

I was told no difference for high flow cats just hard to believe

Tradesman

It depends on the vehicle. But with everything else you need a tuner to see the true potential.

Sharkey2010

what i did to mine, straight pipe!, then got magnaflow cats, sounds AWESOME and i got 12 hp increase as oppose to the magnaflow setup i had, i only got 4 extra horses, u should try straight pipe!

FiremanChris28

This is a topic that is hard to answer on, it depends on the amount of money you are willing to spend on it(I.e. long tube headers, high-flow cats, etc.) and the type of sound you are looking for. These motors are computer controlled and without a retune or intake you will not see much of a HP gain with just an exhaust. If you are wanting a good gain then you should do a full exhaust (from block back to tips), intake and tuner.

davidk1078

A retune? On stock computer. Or my edge programmer

FiremanChris28

"Retune" meaning a programmer if you don't already have one.