I have a whole in my muffler so I am moving on the bigger and better things. I am looking at the Flowmaster 40 series, cheap and good name. My Question is that the factory is 2.50 in and 2.25 out, what size muffler should I get? Also how would it sound? If I ran 3 inch pipe from muffler back would that mess up my back pressure causing me to lose acceleration? I like my speed and the deep muscle sound please let me know what you think.

 

The Flowmaster is fine - my daughter's 97 had one. But I don't think there's much you can do to get decent exhaust tone from e Blazer. They all sound like they have the farts.

 

I installed a "Flowmaster Clone" and the sounddidn't change, but then I had a plugged cat. conv. So I installed a "high-flow" cat and the sound improved dramaticaly.

At least in my rig. '95 4.3

 

I would not go any bigger than 2.5 inches for the tailpipe on a V-6. I have a 3 in dual 2.5 out Magnaflow on my Blazer and love it. But of course I got the muffler for free. Plus a 3 inch tailpipe would be a hard fit for a late model Blazer. I have a couple pics of it in my gallery.Korey

 

I got 2.50 out Magnaflow.. sounds good and sounds even better now that it broke in.

 

You should get some sound clips of that... both free rev, and under load, lol

 

Flowmaster's are good, I recently switched over to the 40 series and it sounds better every day. I've always gone with 2.5" on the exit single or dual.

 

Ok, I was going to try to reuse the 2.25 tailpipe. Do you think a bigger tip would help with sound or better off just running 2.50?

 

Yeah, Klblazer07, Mine also sounds great now that it is broken in, I actually did not like it at first. Blazerx85, I personally would use a 2.5 inch, but that decision is totally up to you. I don't think the sound will change that much between the 2 sizes, just the flow would not be as great. But yes a large tip will make it sound different. Korey.

 

Yeah man, drperry I got a clip in the Exhaust Section... its alright. I should do another now that its all broken in.