4.3L Blazer Exhaust
#51
all of that can make a difference to how the sound will exit from the muffler.
#52
Only thing to do would be a highflow cat, it'll be louder than the stock one. I would wait until the stocker needs replacing then scrap it.
I want to see what the bone stock exhaust sounds like with a glasspack spliced in place of the muffler. On my friend's 04 his has 3" pipe into the muffler and a 2.25" tailpipe coming out so I figure a 2.5" in/out glasspack will fit in with reducers on each side. I think that'd be a good cheap setup, leave as much stock piping as possible since it's partly stainless which is why stock pipes don't rust on newer cars, provided you wash road salt off them.
I want to see what the bone stock exhaust sounds like with a glasspack spliced in place of the muffler. On my friend's 04 his has 3" pipe into the muffler and a 2.25" tailpipe coming out so I figure a 2.5" in/out glasspack will fit in with reducers on each side. I think that'd be a good cheap setup, leave as much stock piping as possible since it's partly stainless which is why stock pipes don't rust on newer cars, provided you wash road salt off them.
#53
I really need to get pics up of the system I got, but I just hooked the muffler up to the exhaust after the cat, and then got like a 12" long, 2.5" diameter pipe hooked up right after it dumping out right before the rear axle. So its all just a straight pipe, and it sounds alright, but it doesn't throw the sound out, and the droning is pretty bad inside the truck....
I wanted to just adapt the muffler to the original end pipe, but I couldn't get an adapter that would fit on without modification, and I didn't want to deal with it so I just got a straight pipe.
I wanted to just get a glass pack, but I also wanted something that would just go in place of the original muffler on the car, and all the glass packs at the store were like 3 ft long, and I didn't know if it would line up right to hit the hangar right before the rear axle or not and didn't feel like finding out the hard way.
I wanted to just adapt the muffler to the original end pipe, but I couldn't get an adapter that would fit on without modification, and I didn't want to deal with it so I just got a straight pipe.
I wanted to just get a glass pack, but I also wanted something that would just go in place of the original muffler on the car, and all the glass packs at the store were like 3 ft long, and I didn't know if it would line up right to hit the hangar right before the rear axle or not and didn't feel like finding out the hard way.
#54
You can try getting a 45 degree bend coming off the muffler outlet, a short piece only a few inches long, then get a 3" tip and point it out the side in front of the rear tire. A long tip like that will give a it a deeper sound and coming out the side reduces drone significantly. Also how is the muffler mounted? If the large surface area's of the muffler are facing the ground and the underside, turn it sideways because the large sides act like speakers and the drone that comes out hits the ground and bounces back so it all ends up hitting the truck.
#55
Well good luck trying that because the frame is in the way... The only possability of doing that it if you go in between the leaf spring and frame. And i wouldnt reccomend that on a 4WD blazer cause if you ever happen to flex the suspension at all you could bend the pipe or smoosh it together. i just put a turn down on my truck after cutting the moffler off and its pointed diagonally so it dosent hit the frame but also dosent point straight to the ground...
#56
I don't know what to do for now, the pipe comes out now probably within 2" of the rear axle, so I couldn't even turn it out with the pipe I have now if I wanted to. Does anyone make full 2.5" exhaust pipes for the Blazer after the muffler? I could just do it that way if anything...
#57
Easier and cheaper to have a shop bend up a tailpipe for you than buy aftermarket pieces.
#58
New Member
Join Date: Dec 2010
Posts: 68

my blazer is a 4.3 99".i put a flowmaster single muffler that splits to either side of the rear drs.wanted something different and looks cool.its a head turner people like it.i was gonna put a dynomax on it until the guy putting it tiod me that it would sound a little louder with a flowmaster 50 series.so i did and sounds nice.dont have headers.
#59
Starting Member
Join Date: Jan 2011
Posts: 1

i have a 2000 4.3 blazer and i was thinking about getting a set of headers for it just dont know what would be the best way to go. i have a glasspack on it already and thinking about putting new pipes on but keeping the glasspack, it sounds great. any advice on the headers a pipe size.
#60
New Member
Join Date: Dec 2010
Posts: 68

i have flowmasters 50 series on mine,well i dont have headers yet but i like how these sound.only got one flow that splits out of my rear 4 drs. out wanted something different than the old school way back.look awesome and are head turners






