i have a set of flowmasters on my 05 silverado with the 5.3 in it. what headers do you guys think will give me the largest hp and tq increase?

 

If you're lookin at any kind of budget the pacesetters seem to be a good choice...Thats what I have along with about 90% of the others on here have

 

longtube headers is what you want

pacesetters are the best for the money but if you can swing it id get stainless works or another brand of stainless header

shorty headers give little to no increase over stock

if you dont have emissions go ahead and get the off-road y-pipe(ORY) to go with it

here's a link on where to buy pacesetters
http://www.texas-speed.com/shop/item...d=647&catid=45

they are a sponsor

 

If you want to keep legal state emmissions, then the Dynatech LT's would be one of the best choices. All stainless steel materials and hardware, 2-high flow cats, high quality fit & finish, and a direct bolt on to your exhisting factory exhaust or an aftermarket cat-back kit. No welding or fabricating needed. Even comes with the O2 sensor wire extension.
Good luck chosing!

Jim

 

ive had my pacesetters for a while! and they are still as pretty as when i put them on, and i noticed a nice sotp gain with them, and a tune!

i would greatly recommend a custom tune when u do a complete exhaust system, helps u get the most out of it. Theres a few good tuners in the sponsors list, i went with nelson performance.

 

Being in Ohio, I'd get something in SS (Stainless Works, Dynatech)to keep them nice for a long time. It's more $$ now, but well worth it.

 

Well if you are from Ohio then stainless works is near Warren Ohio if you know where that is. They are also a sponsor here.

 

pacesetters here

 

I'm diggin' my StainlessWorks with catted y-pipe Definite increase over the Gibson shorties I had previously. There's some pics in the link in my sig to my cardomain page, and a link to their website to the right>>>>>>>>>

 

I just bought the Dynatech headers with Y-pipe. Like Chevy6000VHO said they are stainless, which is important where we live, come complete with cats and will hook-up to the exhaust in the factory location. I don't have them installed yet so I can't tell you how they work. I will put them on when I get back from Glendale.