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Cat-back exhaust system for Chevy 8.1L

mkirsch
Nomad II
Nomad II
I was wondering why my old farm truck was sounding more and more like a farm truck all the time...

Over the weekend I discovered my 2002 Chevy 3500 8.1L has developed a leak in somewhere in the muffler! Seems like sixteen years is all you can get out of them...

Got any recommendations for a cat-back exhaust system for the 8.1L?

Putting 10-ply tires on half ton trucks since aught-four.
18 REPLIES 18

Ralph_Cramden
Explorer II
Explorer II
Give these GUYS a call.

They have a couple of counter guys who can go through their catolog and inventory and usually put together a package of off the shelf pieces that will bolt right on to about anything with little modification. I have dealt with them for years in person. Theyre wholesale but have a walk in retail parts counter and may be able to ship to your location or to one of their customers in the Buffalo area.
Too many geezers, self appointed moderators, experts, and disappearing posts for me. Enjoy. How many times can the same thing be rehashed over and over?

98coachman
Explorer
Explorer
mkirsch wrote:
Yes, that is exactly what I am saying. They only list two kits, both of them are for extended or crew cab trucks, one stainless, one not. Neither of them will fit my truck.
Do you have access to a sawsall? It can't be that tough! Good luck

parker_rowe
Explorer
Explorer
hussbuss wrote:
Take it to a small custom exhaust shop and have them build what you want. I did this with my 96 big block crew cab. Full 3 inch duals from the cats back. Under 500.00 with labor, mufflers, and pipes.


Hopefully not too off topic, since the OP is considering muffler/catback choice.

What kind of drone are you all getting under load(towing) with these aftermarket mufflers?

I have a 2 into 1 catback sitting in the shed for my truck, but I have been leery of installing it because I don't want it to be obnoxious when towing.

I have a the factory GM trashcan sized muffler on it now.
2015 Starcraft TravelStar 239TBS 6500 GVWR
1997 GMC Suburban K2500 7.4 Vortec/4.10
1977 Kawasaki KZ1000

mkirsch
Nomad II
Nomad II
I did via online chat at their website. I was told almost immediately that there was nothing for my truck and nothing they could do to help me.

This "TIME Auto" place says they have an OEM (style?) muffler, but they're so disorganized I'm not sure that they're legit. They list about 8 different mufflers all at different prices for the same truck.

Putting 10-ply tires on half ton trucks since aught-four.

hussbuss
Explorer
Explorer
Take it to a small custom exhaust shop and have them build what you want. I did this with my 96 big block crew cab. Full 3 inch duals from the cats back. Under 500.00 with labor, mufflers, and pipes.

JIMNLIN
Explorer
Explorer
I ordered the 3 chamber Flowmaster for my old '90 2500 chevy..... std cab ....long bed. I had a muffler shop add the pipe.

Give Flowmaster or one of their dealers a 1-800. They should have all the answers.
"good judgment comes from experience, and a lot of that comes from bad judgment" ............ Will Rogers

'03 2500 QC Dodge/Cummins HO 3.73 6 speed manual Jacobs Westach
'97 Park Avanue 28' 5er 11200 two slides

mkirsch
Nomad II
Nomad II
Yes, that is exactly what I am saying. They only list two kits, both of them are for extended or crew cab trucks, one stainless, one not. Neither of them will fit my truck.

Putting 10-ply tires on half ton trucks since aught-four.

trail-explorer
Explorer
Explorer
Ozlander wrote:
mkirsch wrote:
The Flowmaster kit is for Extended and Crew cab trucks. It will not fit my regular cab truck. Flowmaster says so.

Are you saying Flowmaster does not have a kit that fits your truck?


Sounds that way, and he is saying that FLowmaster is saying they said so.
Bob

Ozlander
Explorer
Explorer
mkirsch wrote:
The Flowmaster kit is for Extended and Crew cab trucks. It will not fit my regular cab truck. Flowmaster says so.

Are you saying Flowmaster does not have a kit that fits your truck?
Ozlander

06 Yukon XL
2001 Trail-Lite 7253

mkirsch
Nomad II
Nomad II
The Flowmaster kit is for Extended and Crew cab trucks. It will not fit my regular cab truck. Flowmaster says so.

Putting 10-ply tires on half ton trucks since aught-four.

JIMNLIN
Explorer
Explorer
My neighbor has a '02 2500 chevy crew cab 4.10 gears 4wd 8.1 with a 3 chamber Flowmaster big block series. Its rumbles at idle but not loud at all in the cab unlike some of the single and two chamber Flowmasters.

I had the same Flowmaster 3 chamber big block series on a '90 chevy 2500 5.7 smallblock. It had a nice deep rumble at idle or low rpms and also had no cab noise at speed.
"good judgment comes from experience, and a lot of that comes from bad judgment" ............ Will Rogers

'03 2500 QC Dodge/Cummins HO 3.73 6 speed manual Jacobs Westach
'97 Park Avanue 28' 5er 11200 two slides

Cameo_Phil
Explorer
Explorer
There are lots of after market distributors that sell cat back exhaust systems for the 2002 3500 chevy with a 8.1l engine. Here is 1 vendor:
Summit Racing
2002 Carriage Cameo F35CKB
2005 Chevy 3500 LT, CCLB 6.6L Diesel 4X4

BurbMan
Explorer II
Explorer II
Yes you're right, and my challenge is that the exhaust for the burb is different than for the trucks. Looks like Time Auto has a replacement muffler, I would go that route personally. The Magnaflow sounds badass in the Home Depot parking lot, but is too loud in the big cabin of the burb with 3 rows.

mkirsch
Nomad II
Nomad II
Looks like that kit is for the Suburban. I've got a 3500 DRW pickup, and when I search for that they only list options for the duramax.

Putting 10-ply tires on half ton trucks since aught-four.