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89 Gmc k1500 with a 454

Need some advice on a exhaust system for my truck. I want to put a Flowmaster 70 series muffler 3 inch inlet and dual 2.5 inch outlets. What y pipe should I use, i am eliminating the cats. Currently has dual mufflers and pipes but is way to loud. Cant hear myself think! Your suggestions would...
- ihop
- Thread
- Dec 27, 2023
- Replies: 1
- Forum: Exhaust
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1990 454 exhaust manifold replacement

Yes they are needed. Do not install them without the gaskets, you will not be happy with the outcome.
- ihop
- Post #20
- Aug 21, 2021
- Forum: Exhaust
I
2004 Yukon Denali 2nd or 3rd seat in a 1989 Gmc K1500 std cab

Thanks for the advise, I am capable of building the brackets but I will see what I can find out of a crew cab.
- ihop
- Post #3
- Aug 20, 2021
- Forum: OEM and Custom Interiors
I
2004 Yukon Denali 2nd or 3rd seat in a 1989 Gmc K1500 std cab

I have come across a nice leather 2nd and 3rd seat out of a 04 Denali. I would like to put one of them in the 89 GMC Sierra SLE 4x4 std cab. Has anyone had experience with this type of mod and if so what am I up against.
- ihop
- Thread
- Aug 18, 2021
- Replies: 3
- Forum: OEM and Custom Interiors