Not another exhaust question

[RadoSilver]

Hey guys, Great site.

 

I was hoping you guys can help me out. I have a 02' 4.8L silverado, and was thinking of putting an exhaust system / muffler on it. I've pretty much narrowed it down to flowmaster....But, I didn't want anything loud. I was just thinking of replacing the stock muffler and keeping the stock pipes.

 

My question is will a cat-back system be louder than just changing the muffler? And, which series flowmaster would be best? (thinking about 70 series.)  

 

Thanks-JD

[Off Road Red]

Wlcome to the forum Rado Silver, and to answer your question the only thing that would make a cat back system louder than just changing mufflers would be if it had oversize exhaust tips or if it was a dual tailpipe system, they are sometimes a bit louder.  The flowmaster is a great choice but the 70 series is more meant for big block trucks and towing vehicles with dual exhaust, you would be better off with a 60 series, they are made for smaller engines but it depends on what kind of sound you want it would be good choice if you don't want a lot of noise.

 

You can go to www.flowmastermufflers.com and hear what each muffler sounds like.

[gmcjoe]

Hey RadoSilver, Welcome  

 

A 70 Series Flowmaster is VERY quiet.  Are you looking for strictly performance gains or a slightly better sound?

 

I have a single Flowmaster 40 with dual tailpipes on my 5.3l. I have a sound clip on my webpage if you want to hear it. From your post, it may be too loud for you.  A 50 or a 60, like 'Off Road Red' recommended might be better for you.

 

Good Luck!

[dstktmusa]

let us know what your web page is, i would like to hear that sound clip.

[gmcjoe]

sorry, if you click on my sig pic, it is linked there.

 

Here is the URL: http://mywebpages.comcast.net/00gmc/  

[Cyclic]

If your not in a big hurry I've already ordered the Flowmaster #53072 which is the drop in muffler for the new GM trucks. As soon as its installed I'll post a link for pics and sound. Should be no more than a week. The muffle shop where you get it installed will have to add a small length of exhaust tubing to match up to the factory pipes, no bending required.

[RadoSilver]

Thanks for the info. I'll check out the website and call some muffler shops around here.

 

I guess I'm looking for a system that will improve performance with minimal sound.

[RadoSilver]

I just checked out the flowmaster website and compared the 60 and 70 series. The 60 series seems to be for 4 and 6 cylinder engines, and import cars. Will the 60 series work?

 

According to the sound chart the 70 series is where I want to be (close to that mid mellow range).

 

-JD

 

BTW- What size diameter are the stock pipes?

[psychoticide]

I have a 2001 1500 with dual 50 series flowmaster w/ deltaflow and I could not be happier.  Not too loud inside the cab and just the right amount to get noticed while driving by.  The performance increase is a very good added bonus as well!