Edmunds.com | Inside Line | Auto Observer Your Account | Help | Directory
You are here:
![[F]](http://a332.g.akamai.net/f/332/936/12h/www.edmunds.com/media/townhall/webxicons/site.gif){kind=small}
Forums
Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado/GMC Sierra - Owners hangout 
5688 messages, Last post on Oct 17, 2006 at 8:34 PM
You are in the Chevrolet Silverado & GMC Sierra Forum. Your Host is kcram
|
Anyone tried having dual exhaust installed on a 2002 Sierra? Checked on it today and was told because of the cross member design on the 2002 there was no way to do a "true" dual exhaust. Was told they would have to come back with a single pipe farther back and split it to the 2 mufflers. He said there wasn't enough room down the sides either. Anyone have any input? |
|
| a "true dual" exhaust. Lose too much back oressure. A single 3" pipe is best for power. A single in with dual out 2 1/2 to 2 3/4" for duals but you lose a little low end power. | |
| appreciate the response. Are you running flowmaster? Did you dee improvement in hp or mpg? | |
|
That navy thing explains why so many buildings in that area are like quansant (spl) huts ! We wanna taxi cab it to the topless bars ! LOL........ Darn, I wanted to compare knockers with ya ! Wish the Edmunds crew could get something like the BBq going ! Last year (2nd) was over 200 people ! This year expecting 300 plus ! Plowheads UNITE ! www.plowsite.com |
|
| I've had Flowmasters on 6 trucks since '88. All with the single in dual out coming straight out the back. Never having tried a single 3" I can't say it's better but I can say I've not noticed a loss of power with the setup I have. Have to put it on a dyno I guess. It sounds good and feels stronger but who's to say? I've done the exhaust, the chips, the K&N filters and can't honestly say I've ever seen an increase in MPG. If there is it certainly isn't enough to ever make up the cost. But in my case that isn't why I do it. It sounds good and hopefully I've picked up a couple HP along the way. FYI...with the new body style (and LS1 engine) in '99 the 50 series now causes a lot of resonance inside the can of an Xcab so a resonator is required. That or go to the quieter 70 series muffler. I have the 50 with the resonator and it sounds good and has very little interior resonance. | |
| The exhaust guy was quoting the 40 series to me. This is kinda new to me so I don't know whether to go with the 40, 50, or 70 series. What is the difference with each? Thanks | |
|
really loud, and have a lot of resonance. I'm sure they sound good outside but I know I couldn't stand it inside. The 50 is a little quiter but sounds really good, and was fine on the pre '99's. But as I mentioned, produces too much interior resonance on the new extended cabs. The 70 series is the quitest. I had it on a '99 with no resonator and it was fine, but I wanted it a liitle louder. So on my '01 I went with the 50 and a resonator and am very pleased. You can get some idea on their website "flowmastermufflers.com". They have sound bites and explain about the different series. Thier tech supposrt is also very helpful with answering questions 1-800-544-4761. You didn't say if you have a Reg. cab or ext. You can probably use the 40 on a Reg. cab but for me personally it would be a little loud. Maybe 20 yrs. ago it would have been ok. |
|
| My friend changed over to Mobil Synthetic Blend and said he drove it a few miles and drained it back out because it reduced his power so much. Now he's scared to use the full Synthetic. Has anyone else had this problem or know why you would have this problem? Thanks. | |
| I have the 70 series on the '00 Silverado EC. It has a resonator just in front of the mufflers. Single in, dual out to the sides (same as factory). This is the muffler that GM should have used. It has a slight rumble and absolutely no resonance. It is for older people who get teed off when next to the boom box cars (the rice burner type). It did not seem to make a difference in pickup or power or fuel economy. Other than sounding much better than stock, the cost is only justified by saying "I want dual exhaust" | |
| Synthetic oil (blend or 100%) will not reduce engine power - if anything it will increase it - but IMO not enough so that you would notice it by the seat of the pants test. | |
You are here:
Forums
Pickups Chevrolet Silverado & GMC Sierra Chevy Silverado/GMC Sierra - Owners hangout
New? Join Now!
Forum Tools
Search Forums
Browse by Vehicle
2010 Chevrolet Silverado 1500
2004 Chevrolet Silverado 2500
2006 Chevrolet Silverado 3500
2010 GMC Sierra 1500
2004 GMC Sierra 2500
2006 GMC Sierra 3500
Browse by Board
Browse by Topic
Today's Chats
