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Discussion Starter · #1 ·
Ok, went yesterday and had exhaust installed. I installed the 70 series FlowMaster #53071 and a flow free tail pipe (I guess thats what they are called) and a chrome tipe 3" slip and 3.5" open at tip. At first they removed the second cat. and my wife drove it home, she said it is a little loud, but if you like it fine. Well I didn't, so I went back and had them install the second cat (I keep it just in case) and it sounds pretty good now. Looks good too. I also stayed with a 3" pipe as that was stock. I looked at the second cat. convert. and it was plugged about 5% nothing black, it was silver with like little seeds I guess. Otherwise looked good. Didn't see the front one. Just thought I would share. The new muffler was the same length as the old one(22" long). The muffler guy said it looked like it was all stock. Pretty good for stock I guess...



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1989 Chevy Suburban/454tbi/2500/4x2/3:42;G80/F&R a-c/K&N air filter/180* Thermo Stat/10city;13 highway
 

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Discussion Starter · #3 ·
Little. I think cat. is bad though. The second one was clogged about 5%, I didn't see the first one though. Its getting there!


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1989 Chevy Suburban/454tbi/2500/4x2/3:42;G80/F&R a-c/K&N air filter/180* Thermo Stat/10city;13 highway
 

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Discussion Starter · #4 ·
Has anyone else noticed this. It smelled like the new exhaust was burning off the coating or something. The muffler guy said that there is a coating it is burning off, its ok. Since the first day and 50 miles later, about 90% of its gone. It doesn't smell like exhaust, like something is burning. I went with the cat back/muffler/tail pipe (aluminized pipe) is this why?

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1989 Chevy Suburban/454tbi/2500/4x2/3:42;G80/F&R a-c/K&N air filter/180* Thermo Stat/70 Series FlowMaster; 3" pipe/10city;13 highway
 

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I've my new exhaust on for about 3 weeks and I get the same smell. Muffler guy told me the same thing....I guess it makes sense.
 

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river and Tenn,
There is a protective oily coating that is used to prevent the pipes from rusting when stored or shipped. This is used quite frequently in industry. It will burn off as you've stated and doesn't hurt your car or exhaust. I hope this helps you out.

Joe
 

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I agree wth 72SSAbody. Also, from experience its gonna burn a little while. My headers, pipes, everything, smelled exactly the same for little while, the coating burns off soon though.
 
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