15/8 or 13/4 longtubes

[03redfirevert.]

Well, I got a few bones burnin a hole in my pocket,looking to put LT headers on the cobra, what primary size along with collector size,x-pipe size and catback would you do. I will be adding at least a 50-75hp shot of dope in the future,its on the car just have'nt used it. It will be on a 110 octane 21# tuneup. Havent really beat on it or put it on the rollers yet because I want a set of headers on this thing. They have got to be worth some power.

 

[03redfirevert.]

no opinions here, Is it my avatar?lol:shrug:

 

[Posi]

Well if you're worried about every last hp/tq you can get then get the 1 3/4" Lt's. I got the 1 5/8 Kooks and love them. They are tucked way up under the car and don't rub on anything really. If our stock manifolds are good up to 600hp then I figured I didn't need any larger headers anyways. That's why I got the 1 5/8 Lt's.

 

[03redfirevert.]

Thanks for the reply, I had no idea the stock manifolds were that efficient. I think I will get the 15/8 to help keep the low end,not that these cars are lacking low end torque,lol.

 

[Posi]

Your welcome and good luck