Over the winter I plan to do either Long Tubes(hooker), or an SLP Y pipe with no cat. I just wonder how restrivive are our manifolds? Are the headers really worth $500? Or could that money be better spent elsewhere?

The car currently has 4:56 gears (not my choice). A BS thrown together exahust that will be replaced with a Borla or Triflo. And a Moroso Intake.

 

Get the headers. You won't regret it. Once you take the manifolds off you will see how restrictive they are.

 

Get the LT's. Stock manifolds are real bad.

 

Manifolds suck. This is contriversial, but mods and times in sig, I run cheap **** bbk shorties. Car was REAL efficent out of the hole, but made good power as well. I cant complain, 12s on shorties. I guess what im gettin at is shorty or long tube, either one is WAYYY beter than factory. Hope this helps, Eric L

 

well, rund the engine on a dyno with and without them, see what kinda power it makes. lol.

 

Headers are a great mod, you'd be suprised.

 

Another vote for headers, I believe on a stock motor headers yield (long tubes) 20~whp?

 

20rwhp is realistic for LT's

 

Just physicly compare the two. You'll see what everyone is talking about.

 

The numbers speak for themselves as to the difference between stock manifolds and aftermarket headers. One of the best bang for the buck mods IMO and also a good basic mod to do bigger things with down the road such as heads,cam, ect.

 

How well do shorties do in terms of rwhp gains if LTs are about 20? ~15 range?

 

To a stock engine, very little. I'd say maybe 10, but that's being generous.

 

I would never waste my time with shorties. LT's allow more flow on a stock motor and even better if/when you do an engine build. This I know.

I just wondered if LT's should be a must have mod if the car will never see more than basic bolt-ons.

Thanks for all the replies gents.

 

Get lt's and fab up some duel exhaust with a couble of dynomax bullet mufflers. Borla is overpriced and overrated.

 

Borla = Overpriced Cut-out