Heey guys, new to the boards Got a 04' Red Reg. Cab 4.8l Truck in April. Veryyyy happy with it. I also have a 78' Silverado SB for those woh like the older models Currently getting a 500hp 383 in her Anyways, Anyone kno some good soild cat-back exhaust for our trucks? This is jsut my lil daily driver but I still wnan be able to paly with soime people lol. Alrdy raced a few and sorry to say...the 4.8l lacks alot of the line IMO. Mods done so far are k & n and a Flowmaster Muffler (Just for esound rly) I was thinking of a good cat-back and a intake system. then maybe a posi..I got 3.37's alrdy ) Dont rly care to much about warrenty lol. And hte only place i found headers is Gibson..is there anyone else that sells thme cheap? But like i said..just need a lil more power Wat do yall 4.8 guys think? Thx guys!

 

well if your looking for checp, check ebay. or the classified section in this truck section.
other wise, hold your breath, cause aint nothin really cheap for these tucks
it can get expensive real quick :l

 

Not like dirt cheap lol. But I wont spend 700 Dollars on a cat-back lol. thinking of just a FIPK and a simple cat-back for now. And see where that takes me? wat so brand of cat-back recommnd? I love hte sond of Flows but I think there more hp in other systems. I dunno if I like magnaflow. Does SLP make a kit? Thx guys!

 

I believe that SLP does make a kit, but it's not cheap. There is a link to SLP over on the right side of the screen.>>>>>>>>

 

Yea thx. Went ot the site. Its 49.99 +40 shipping. I dunno, most cat-backs ar ehte same anyways right. Alteast same gains and wat not. Cuz I ant getting crap from that lil muffler lol. might just save up for that SLP kit. eard them before and they sound realllllly great. And its alot cheape than Corsa too. Oh and how much pwoer will i see with that FIPK? Thx for being helpfull guys.

 

probably about 10rwhp up top from the k&n.
theres tons of cat-backs. check the sponsors and you'll see a bunch. If you wanna go cheaper, just find you a muffler that you like and go get a muffler shop to weld it up for you. I wouldn't go with a flow master, do many bad stories.

 

Nah I want a cat-back better power. I think i'ma go or SLP lit And FIPK I stole 2 muflers off my 78' and put one on my 04' for liek 20 bucks lol. Sounds godo but tere no performance like wat I want lol. So lol. Either SLP...if I really wnan save. Or a simple Gibson. Now wats this Nelson tune everyone talks about? Is it like a chip or wat?

 

My butt dyno says Gibson cat back ( around $300 if you shop around ) and Volant cold air intake ( around $220 shopping ) got me the best gains. The new vehicles are all sealed computer controlled, no accessible chips. BUT you can gain easy access to the programming using hand-held controllers. Hypertech ( $200 shopping ) is on mine and made the best overall gains in combo with the CAI and exhaust. Headers will also give you some boost but more likely at upper RPM's. The 4.8L is lacking most at low RPM torque.
Congrats on the Silvo and welcome to the site! Lots of great info here.

 

yea thas what I noticed. I have noting offhte line. Now from a roll its alot better. But yea I just need a good cat-Back and Intake and i'll be happy. I alrdy got a hot rod in the shop

heres pics of both my truck if yal lcare to see.

http://memimage.cardomain.com/member...49_29_full.jpg

http://memimage.cardomain.com/member...549_8_full.jpg

3/5 drop, headers, Roll pan, Custom 3 blue Paint job, Inthe shop rigth now all torn done. Getting new fiberglass parts, new paint, and a 383 Stroker

Thx again for all the helpfull info guys!!

Tyler

 

The FIPK2 shouldnt be bought for any real HP gains! The last time I dynoed I took the filter offmy FIPK2 and gained 2rwhp! The guy that owns the shop I dyno at and who works on my truck dynoed his truck (01 5.3 RC) with stock and then with FIPK2 and he saw 0 hp gains. Although thsi wasnt going 50+ down the freeway it was with a huge fan blowing into the grill! The reason I bought the FIPK2 was just for looks! If you want to do a good mod without going crazy like with n20 or a turbo then get a custom tune from Nelson Performance you should see a 20+ rwhp gain and your truck will drive completely different! HE is a sponser so check him out on the right side of the screen! Dont get a handheld and most on this site will tell you the same! Good Luck!