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-   -   thoughts on my exhaust design on my 87 GMC crew cab long bed dually (https://67-72chevytrucks.com/vboard/showthread.php?t=661755)

Chevy Padilla 02-27-2015 09:47 PM

thoughts on my exhaust design on my 87 GMC crew cab long bed dually
 
Thoughts on exhaust design do my 87 GMC crew cab long bed dually with 454
Its start from manifold dual exhaust to 3" pipe to cats from cats to x pipe from to two flowmaster super 44 from mufflers to 3" inch intrets to 4" exit tips the exhaust is go stop in front of the back tires

y5mgisi 02-27-2015 11:52 PM

Re: thoughts on my exhaust design on my 87 GMC crew cab long bed dually
 
Sounds a bit over kill and overly loud, but not too bad. I think dual 2.5" would probably be better. And i bet you would be happier with 50 series.

cmax87v3500 03-01-2015 02:38 AM

Re: thoughts on my exhaust design on my 87 GMC crew cab long bed dually
 
Unless its a Built motor that probably going to be too much exhaust. A single 3" is usually plenty on stock or even slightly built motors in my opinion. Single 3" on my 454 trucks.

SCOTI 03-01-2015 05:14 AM

Re: thoughts on my exhaust design on my 87 GMC crew cab long bed dually
 
3" into the muff's is do-able. Downsize from there (especially if its TBI).


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