I need some suggestions for exhaust for my new 04 GMC ECSB. I had flowmaster exhaust on my other truck. Im looking for somethng different for a change. And somthing that actually gains horse power. Also i will be adding a RADIX in the coming months. So any suggestions would be great

 

Long tubes,dual 2.5,x-pipe and magnaflows.

 

Yup, I second that.

 

That'll work well ... to be a little more specific though, I'd go for the TOG headers, but get them coated.

 

Ok long tubes. ok dual 2.5? what is that? Who can i go to for the x pipe. and which magnaflow should i go with? This will be a true dual setup with my cats in place right? What kind of horsepower should i expect from this setup. Remembering that this is 4wd all this stuff wil fit?

 

ASM longtubes, dual 2.5 exhaust pipe. You can get a x-pipe from magnaflow, husker performance or even just have a exhaust shop build one for you. The mufflers I used have a 4x9x18'' case part#11259,offset inlet and center outlet and are dumped just over the rear axle. There will be no problem fitting the exhaust under your truck along with having you cats in place.

 

Yes, this will be a dual true set up. The kind of magnaflow depends on how loud you want your set up. Although, some claim up to 12rwhp with withthe cat back, when I put mine it sure did not feel like it. I felt a greater difference withthe ASP pulley and that is a proben 1-12 rwhp mod. I dd feel a difference with the exhaust though. As far as headers go, they are good for about 20rwhp.

 

Just the info i was looking for, thanks guys and MERRY CHRISTMAS