which has more hore power gain?

[greatmike]

which has more horse power gain shorty headers with high flows cats or long tube headers with high flow cats.and do you need a tune with shortys and high flow cats.

[IROCanSS]

Shorties = Little to no gain/no tune... Little bit of sound
LT = some gains, more with a tune, good bit of sound.

[anthonyj9h]

long with high flows more air out more power and no tune with shorties and high flows are hit and miss with cel lights which you have to tune out

[IROCanSS]

Originally Posted by anthonyj9h

long with high flows more air out more power and no tune with shorties and high flows are hit and miss with cel lights which you have to tune out

Holy runon sentence batman! I read that a few tines and am still lost.

You're backwards on the CEL. He'd be fine with shorties, hi flow cats and no tune. He may get the CEL with LTs and no tune.

Jury is still out on whether shorties are worth anything. Go long or save your money!

[klatterblast]

i have to say that 1 7/8" x 3" long tube headers w/cats is the way to go with BIG gains in hp & tq , its the best mod for the money . gives you about 35 or 40 hp with a tune. nothing else gives you that kind of power + great sound for the money spent.

[CC Performance]

I would not waste my money on shortys but they seem to be very popular for the C5 and I'm not sure why?

[67motorcat]

Originally Posted by CC Performance

I would not waste my money on shortys but they seem to be very popular for the C5 and I'm not sure why?

It's called some state required emissions inspections!

[axis]

Originally Posted by jrhaus76

Holy runon sentence batman! I read that a few tines and am still lost.

You're backwards on the CEL. He'd be fine with shorties, hi flow cats and no tune. He may get the CEL with LTs and no tune.

Jury is still out on whether shorties are worth anything. Go long or save your money!

I'll agree on the holy runon sentence.

I think he's stating that shorties AND HF's are hit or miss on the CEL, when not tuned. As most here know, that's a function of the HF cats and not the shorties.

OP: If you're wanting power gains from shorties, you're not going to be happy with what you get. If you want looks and a different sound, they may be for you. The HP gains from the shorty/HF's are almost completely in the HF's. We have members reporting 15-25whp gains from the HF's alone. Many of those are with the stock manifolds. Several have not had problems with CEL's but several have. It's not a gaurantee that you won't throw cat codes. If you're not against getting a tune, DEFINITELY go with the LT's/HF's. They will give you the best gains, along with better looks and a different sound. Notice I didn't say BETTER sound. Sound is purely subjective. The choice is yours, just know what you're getting.