for the spacer…i would strongly urge you to go with JET PERFORMANCE TBS….that whistle will drive you nuts….and its really anoying to you and the passenger when under normal driving…FYI
I dont understand why anyone would put on a Throttle Body Spacer on that makes a whistle….when JET PERFORMANCE has a throttle body spacer that creates no whistle…GOD i hate that whistle !!…..and why in the world would it take TWO LONG DAYS to do a CAT BACK SYSTEM, A AIR INTAKE and a THROTLE BODY SPACER?….THERE SIMPLY A REMOVE ONE AND INSTALL THE NEW ONES….NOT A BIG DEAL!!…REALLY ????…2 DAYS?…FUCK!!
im going with the same set up for my i350 i wish they made more parts. Im going with the green high performance cold air intake and that same spacer and m.b.p.r exhaust.
I don’t have any mechanical advice to improve gas mileage.
About the only advice I can give is to drive it like you worked hard for every gallon of gas. In other words, drive it gently, not “like you stole it”.
On your daily commutes it shouldn’t be too bad. On your long haul, budget accordingly.
Is there any way to improve the MPG on this fat gas addicting vehicle? Because I’m thinking about getting one. I’d mostly be diving 12 miles to school and 12 miles back. But the main reason why I’m thinking about it is I’m taking a spring break trip from AZ to CA and need more room than my 2000 Toyota Celica had. Opinions would be greatly appreciated
I did a lot of shopping around on eBay about a year ago.
I believe the company was MVP Autoparts. But it was an eBay deal.
The BIN price was $599.99. Best deal I could find at the time.
I honestly have not checked my fuel mileage. I only drive the H3 on weekends: baseball practices/games, soccer, ski trips, etc. So I’m not that concerned with fuel economy.
I appreciate other perspectives.
I’m not a mechanical engineer (I’m a civil engineer), but I’ve always believed that nothing beats a straight pipe out the back to improve flow. I selected the Gibson for the very reason that the muffler is in-line with the exhaust pipe, rather than positioned 180 degrees from the exhaust flow as the stock system and many aftermarkets.
Bottom line: The H3 is still a meager inline 5 engine. Real performance will never be achieved in that engine.
continuing on …i am in the midst of making a video of my mods to my 2006 HUMMER H3…as mentioned with the few mods that i have made to the ENGINE….for exception of alot of extras done to the apperance, i have notice a great increase in performance and fuel economy….I THINK THAT YOU WILL SEE A DECREASE IN FUEL MILLAGE WITH THAT GIBSON UNIT…MY FRIEND HAD ONE INSTALLED ON HIS 06 HUMMER H3 AND TORE IT OFF AND INSTALLED A B&B EXHAUST LIKE MINE….I THINK GIBSON SHOULD STICK TO GUITARS .
looks to me like a wistle was gained from the throttle body, and no performance gains from the CAI K&N and no performance or sound note change from the GIBSON….alot of wasted money…..i have new B&B EXHAUST SYSTEM AND A DIRECT FIT K&N FILTER… performance is excellent..sorry about your project ps…the gibson muffler are in stalled before the axle and not in the position where the original muffler was ..and of course,,no new new sound note?…thats terrible….i would complain to them.
Hey Dude,
Thanks, I wanted to get the Before and After for my records.
I think the upgrades made a little difference. Not enough, though.
Have a great week.
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Great comments.
Thanks for viewing!
I AGREE!….PUTZ!!
for the spacer…i would strongly urge you to go with JET PERFORMANCE TBS….that whistle will drive you nuts….and its really anoying to you and the passenger when under normal driving…FYI
I dont understand why anyone would put on a Throttle Body Spacer on that makes a whistle….when JET PERFORMANCE has a throttle body spacer that creates no whistle…GOD i hate that whistle !!…..and why in the world would it take TWO LONG DAYS to do a CAT BACK SYSTEM, A AIR INTAKE and a THROTLE BODY SPACER?….THERE SIMPLY A REMOVE ONE AND INSTALL THE NEW ONES….NOT A BIG DEAL!!…REALLY ????…2 DAYS?…FUCK!!
im going with the same set up for my i350 i wish they made more parts. Im going with the green high performance cold air intake and that same spacer and m.b.p.r exhaust.
I don’t have any mechanical advice to improve gas mileage.
About the only advice I can give is to drive it like you worked hard for every gallon of gas. In other words, drive it gently, not “like you stole it”.
On your daily commutes it shouldn’t be too bad. On your long haul, budget accordingly.
Is there any way to improve the MPG on this fat gas addicting vehicle? Because I’m thinking about getting one. I’d mostly be diving 12 miles to school and 12 miles back. But the main reason why I’m thinking about it is I’m taking a spring break trip from AZ to CA and need more room than my 2000 Toyota Celica had. Opinions would be greatly appreciated
There is a some improvement; but not terribly dramatic.
Any improvement is a good thing.
BTW, within the past month I traded the H3 on an ’06 H2.
WOW, what a difference.
is there a big difference in power i want to do the same thing to mine?
I did a lot of shopping around on eBay about a year ago.
I believe the company was MVP Autoparts. But it was an eBay deal.
The BIN price was $599.99. Best deal I could find at the time.
Good Luck.
Did u get a lot of power from the upgrades? Did it make it faster? .. because I’m thinking of geting on but not if its to slow
I honestly have not checked my fuel mileage. I only drive the H3 on weekends: baseball practices/games, soccer, ski trips, etc. So I’m not that concerned with fuel economy.
If I get some data, I’ll post it.
How much more MPG do you get with the air intake?
I appreciate other perspectives.
I’m not a mechanical engineer (I’m a civil engineer), but I’ve always believed that nothing beats a straight pipe out the back to improve flow. I selected the Gibson for the very reason that the muffler is in-line with the exhaust pipe, rather than positioned 180 degrees from the exhaust flow as the stock system and many aftermarkets.
Bottom line: The H3 is still a meager inline 5 engine. Real performance will never be achieved in that engine.
continuing on .. DO YOURSELF A FAVOR AND GOOGLE…. BILLY BOAT EXHAUST SYSTEMS…… I WOULD RETURN THAT GIBSON AND GET YOUR MONEY BACK….THATS A REAL SHAME
continuing on …i am in the midst of making a video of my mods to my 2006 HUMMER H3…as mentioned with the few mods that i have made to the ENGINE….for exception of alot of extras done to the apperance, i have notice a great increase in performance and fuel economy….I THINK THAT YOU WILL SEE A DECREASE IN FUEL MILLAGE WITH THAT GIBSON UNIT…MY FRIEND HAD ONE INSTALLED ON HIS 06 HUMMER H3 AND TORE IT OFF AND INSTALLED A B&B EXHAUST LIKE MINE….I THINK GIBSON SHOULD STICK TO GUITARS .
looks to me like a wistle was gained from the throttle body, and no performance gains from the CAI K&N and no performance or sound note change from the GIBSON….alot of wasted money…..i have new B&B EXHAUST SYSTEM AND A DIRECT FIT K&N FILTER… performance is excellent..sorry about your project ps…the gibson muffler are in stalled before the axle and not in the position where the original muffler was ..and of course,,no new new sound note?…thats terrible….i would complain to them.
Hey Dude,
Thanks, I wanted to get the Before and After for my records.
I think the upgrades made a little difference. Not enough, though.
Have a great week.
nice video Uncle Brian