I have 08 sierra 5.3 with bolt ons and edge tune. I would like to know more about the long tubes ( can I keep my converters do I need a y pipe) and ud pulleys and what brands to buy and what to expect to pay for these mods. I would like any help and pics if possible.

Zr

 

I just bought a Pacesetter Y pipe from a guy for 100 bucks, but generally they're like 150. I bought my long tubes today, Pacesetters...292, 305 shipped, thats painted though. Ceramics are about 470. Most Y pipes are catless, but you can buy cats from like jegs. I'm not sure how much they are, I don't care for them! An under drive pulley is about 150 to 200. That's what I've seen, but I'm new to trucks I'm sure they're others out there. That should get you started. Once again, I'm sure other guys on here can turn you on to better things, or prices, but that's just my parts.