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View Full Version : K5 Blazer - Flowmaster single 3" exhaust in place of factory dual exhaust?



AJMBLAZER
03-01-2011, 09:28
So anyone replaced their factory dual exhaust on their K5 (70's, 80's diesel, whatever) with the Flowmaster 3" single exhaust setup meant for the 87-91 TBI trucks?

http://www.summitracing.com/parts/FLO-17161/?rtype=10

Starting to think that rather than making the rusty compromise I have in a box work on my truck I should just start over. Lesson learned. I can have that for $216 shipped and then either a new Walker TBI truck Y pipe, maybe reuse the rusty TBI truck Y pipe I have, or maybe if I find a decent shop have them make a Y pipe.

Just wondering if the Flowmaster exhaust "bolts on" to our dual exhaust equipped trucks? Hangars line up and the like. Not much in the way of performance/exhaust fabricating shops here so I'm kind left with the "do it myself" setup and then only having a shop fab a piece to go where the cat would go on a gasser.

More Power
03-07-2011, 13:32
The Banks Sidewinder turbo kit included a 3" single exhaust system and Y-pipe. So, a 3" system should work fine. The factory 6.5 single exhaust system was something less than 3".

If the TBI single is 3" or near 3", it should be fine. A Y-pipe should be easy to make for an exhaust shop.

If the Flowmaster system uses clamp-on hangers, you're in business no matter whether there's any difference.

Jim