BrutalSierra

iTrader: (1)

I stopped watching the MPG's on my dic cuz it made me crazy. Hit the button 2 more times and keep an eye on your trans temp. Now thats beginning to worry me

rjwz28

Hey JAVI, PM is arguing with me on the mobile version. What kind of tone does the Extreme have? Is it more of a rumble or a rasp? It is significantly louder than stock you said; does it sound badass while idling in park or in traffic? I just don't want to choose wrong and have to replace the muffler again. Mufflers aren't cheap and neither is paying somebody to weld it, LOL. I can't weld and I don't have the equipment, and I hate those clamps.

nikon2011

Brutal -

What does your tranny run at? I try and mine won't get into the hot area lol

smrr1

MPG IS SITTING AT 16.6 TODAY. STILL ON FIRST TANK AND DID SOME CITY DRIVING TODAY.

06Sierra2- Most of the GM trucks were single cab short bed 5.3/5.7 with 373 rear. About half were 2wheel/4wheel. But ya i get bored easily and want something different. The other half were mostly mustangs (5.0).

BrutalSierra-How hot is the trans getting? Mine has not got above maybe 165. I have been very nice to it.

BrutalSierra

iTrader: (1)

I've seen upwards of 190 in Houston traffic. And that's not even in 100* weather! I'm going to invest in a 40k trans cooler!

smrr1

that's not too hot in my opinion. it was 98 in austin today. not sure about heat index. if you do more stop n go driving vs highway i'd say thats ok. i'm no expert! just my opinion.

BrutalSierra

iTrader: (1)

Anything over 180* is too hot for me.

smrr1

i'll have to check mine to see what it sits at. i'm not too worried about it cause right now i'm driving like a grandpa.

smrr1

haven't checked my trans temp. i was having too much fun dropping my mpg to 15. finally started to open her up a bit today!

91Z28

Does your truck have the factory HD trans cooler?