6.2 GM Gas Duals

   / 6.2 GM Gas Duals
  • Thread Starter
#11  
   / 6.2 GM Gas Duals #12  
You can always drill a few holes in your muffler. Worked well when I was a kid. Now I like them as quiet as possible.
 
   / 6.2 GM Gas Duals #13  
I've been hunting around...Autoanything seems to have the widest selection right now..I might just call them...

I run it on regular, have tried premium and there's no difference in anything.

So no spark knock on regular? Good to hear, researching next truck.
 
   / 6.2 GM Gas Duals #14  
Gas keeps going up and you can buy mine.haha
 
   / 6.2 GM Gas Duals #15  
I havent put one on this exact truck but have done everyone I have had. I sure do like the sound of flowmaster,gotta get a high flow cat.or take it off all togther. But magnaflow,borla are also some good ones. X back systems or the cheaper route single inlet dual outlets.
 
   / 6.2 GM Gas Duals #16  
foreman Etexas said:
I havent put one on this exact truck but have done everyone I have had. I sure do like the sound of flowmaster,gotta get a high flow cat.or take it off all togther. But magnaflow,borla are also some good ones. X back systems or the cheaper route single inlet dual outlets.

It has 2 cats, they ARE HIGH FLOW!! The GM cats have been since the mid 1990's, and it will actually run worse with out them.
 
   / 6.2 GM Gas Duals #17  
It has 2 cats, they ARE HIGH FLOW!! The GM cats have been since the mid 1990's, and it will actually run worse with out them.

You have to get a tuner/programmer,when you pull the cats..but not saying do it,gotta gett'er inspected:D
I have owned chevy's,im guessing gmc's are the same......
 
   / 6.2 GM Gas Duals #18  
foreman Etexas said:
You have to get a tuner/programmer,when you pull the cats..but not saying do it,gotta gett'er inspected:D
I have owned chevy's,im guessing gmc's are the same......

No, would not say that... :). What gets done with the oxygen sensors?? Not that we do that... :)
 
   / 6.2 GM Gas Duals #19  
No, would not say that... :). What gets done with the oxygen sensors?? Not that we do that... :)



I'll tell you what I will take you a pic:D
 

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