i have a magnaflow dual in/out but if i were to do it again id just use an x and no muffler,the cats actually quiet it down alot. saves like75 bucks too

 

Cat's no mufflers is my vote. I got hit once by the law but he got me when it was wide open. I was lucky not to get a ticket for racing. If your careful it's not that big of deal.

 

i say electric cutout, that or replace your muffler with an STS!

 

Well the thing is lol. The truck was a college present from my grandparents..paid off and everything..warrenty and all. and they'll let me do cats-backs and wat not but I have to have cats and a muffler. Plus....the 4.8's sound like **** with no mufflers. Either Just buy a Race Bullet and slap that on..cuz I like those...keep the series and make a true dual set up with another series 40..which I happen to have lol. So as far as no cats/no muffler..cant do it ...Now on my 383 in hte 78'.....yea I can

 

do a 1 chamber and call it a day. put a dump exhaust tip from the muffler chrome about 4 inches roundf. it will sound good.

 

I dont think anyone else has run a SLP loudmouth resonator on their truck. Trust me, you can pick up the resonator cheap, have it welded in and it'll sound deeper and better than any other muffler out there hands down. I've had 2 series flows, 1 series flows, dynomax bullets, borla, and now a magnaflow. Only reason I went magnaflow is because i wanted it quieter since I now have long tubes and cats. If you want a cheap muffler that'll sound good with your cats, get the resonator.

 

[QUOTE=78' SilveradoPlus....the 4.8's sound like **** with no mufflers[/QUOTE]

not a flame but jeez why did you ask us? if you didnt want peoples opinions. i have heard a 4.8 w/no muffler and thought it sounded cool......if you have your mind made up already dont ask

 

I askcuz I wanted yalls opinions. And thats mine of having no muffler. There was no flam intended on that post. Sorry if i sounded rude. I didnt mean to. Some sound good some dont. jsut my opinion. And I ahvnet made up my mind yet Sorry if that erked you lol.

BTW...anyone got sound clips of ur exhast I'd love to hear them!!

 

its cool

 

I'm running true duals from the headers back with magnaflow 3 in cats and x pipe dumped after the axle it's pretty loud.