Exhaust Question
Thread Starter
|
Laughing Gas
Joined: Jun 2005
Posts: 939
Likes: 1
Exhaust Question
Visited the local muffler shop, dude said he could do a dual out magnaflow or flowpro for about 275.00.
Which would include the tips, 18 inch long for the magnaflow tips think he said they were 2-1/2 round or could do 22inch (Silverline) 3 inch round.
He would make the pipes and either exit out the back or out the sides.
Told him about the spare tire/factory hitch problems and said he could do it around them with out a problem.
Since I dont know much about exhaust and this would be my first aftermarket exhaust, I wonder if I should let him do it or if i should just spend the extra for the kit.
Will I loose HP/Torque by letting him custom make the pipes?
Need Input..
Thanks
Which would include the tips, 18 inch long for the magnaflow tips think he said they were 2-1/2 round or could do 22inch (Silverline) 3 inch round.
He would make the pipes and either exit out the back or out the sides.
Told him about the spare tire/factory hitch problems and said he could do it around them with out a problem.
Since I dont know much about exhaust and this would be my first aftermarket exhaust, I wonder if I should let him do it or if i should just spend the extra for the kit.
Will I loose HP/Torque by letting him custom make the pipes?
Need Input..
Thanks
Elder User
Joined: Feb 2003
Posts: 881
Likes: 0
From: NJ ... the garbage state
his exhaust will not have been engineered and tweeked and tuned with lots of R&D money on a dyno for performance and fitment, thats for sure. and i think i only spent a little over 300 for the flowmaster kit for my truck.
Thread Starter
|
Laughing Gas
Joined: Jun 2005
Posts: 939
Likes: 1
Yeah, but will i loose the hp/torque in doing so.
Ive email magnaflow about a month ago as to which exhaust to use on a 07 6.5ft box and nobody has emailed me back as of yet.
Ive read the posts about problems with fitment with the factory hitch and melting spare tires. Dont know if these are just isolated instances with maybe getting the wrong kit in the first place.
Ive email magnaflow about a month ago as to which exhaust to use on a 07 6.5ft box and nobody has emailed me back as of yet.
Ive read the posts about problems with fitment with the factory hitch and melting spare tires. Dont know if these are just isolated instances with maybe getting the wrong kit in the first place.
Senior User
Joined: Dec 2003
Posts: 337
Likes: 0
Things I would look at:
How competent is this installer? If it is a high performance shop with a good rep, you'd probably be OK. If it's "Mikes Mufflers" who usually does stock exhaust replacement on granny's '84 Olds Delta 88, that might be an issue. Does he plan to use mandrel bent pipe or crush bent? What size pipe does he intend to use? Aluminized pipe or stainless?
We had a post on here not too long ago where a guy went to a local muffler shop and they slapped on their version of dual exhaust. IIRC, he wasn't happy with it and actually had it taken back off.
How competent is this installer? If it is a high performance shop with a good rep, you'd probably be OK. If it's "Mikes Mufflers" who usually does stock exhaust replacement on granny's '84 Olds Delta 88, that might be an issue. Does he plan to use mandrel bent pipe or crush bent? What size pipe does he intend to use? Aluminized pipe or stainless?
We had a post on here not too long ago where a guy went to a local muffler shop and they slapped on their version of dual exhaust. IIRC, he wasn't happy with it and actually had it taken back off.
Thread Starter
|
Laughing Gas
Joined: Jun 2005
Posts: 939
Likes: 1
Still gotta stop and find out if he is using mandrel or crush bent pipe. However..
Whats the general consensus on this..Magnaflow is impossible to get to answer any emails so as far as the actual kit even fitting on my 07 6.5ft box who knows..
All I know is that some say it works so say it doesnt, some say it melts your spare tire and some have a problem with the rear hitch.
Id like to get a dual exhaust but im clueless in what i need or need to do. I know I dont want to lose HP and torque.
Help
Whats the general consensus on this..Magnaflow is impossible to get to answer any emails so as far as the actual kit even fitting on my 07 6.5ft box who knows..
All I know is that some say it works so say it doesnt, some say it melts your spare tire and some have a problem with the rear hitch.
Id like to get a dual exhaust but im clueless in what i need or need to do. I know I dont want to lose HP and torque.
Help
Senior User
Joined: Jul 2006
Posts: 244
Likes: 2
try posting that question in the exhaust systems forum.. someone maybe able to answer your questions better over there. Sorry i can't help. GL
Trending Topics
Laughing Gas
Joined: Mar 2007
Posts: 1,063
Likes: 329
From: Ontario
Originally Posted by SDTruckMan
Yeah, but will i loose the hp/torque in doing so.
In other words, have him install a custom setup for your truck, just like Brolli suggested. It sounds like the price is right as well, especially considering the extra work involved. Also, as Corey suggested, make sure he has the tools for proper mendrel bends etc, and that this is a true custom exhaust shop.
Last edited by last5oh_302; Aug 23, 2007 at 06:21 AM.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread Starter
|
Laughing Gas
Joined: Jun 2005
Posts: 939
Likes: 1
Originally Posted by last5oh_302
What hp and torque are you talking about? If you can provide dynographs proving that a catback actually nets any more hp and torque, please post the info. As far as I'm concerned, catbacks are added for sound and looks, and that's it.
In other words, have him install a custom setup for your truck, just like Brolli suggested. It sounds like the price is right as well, especially considering the extra work involved. Also, as Corey suggested, make sure he has the tools for proper mendrel bends etc, and that this is a true custom exhaust shop.
In other words, have him install a custom setup for your truck, just like Brolli suggested. It sounds like the price is right as well, especially considering the extra work involved. Also, as Corey suggested, make sure he has the tools for proper mendrel bends etc, and that this is a true custom exhaust shop.
How can I tell the difference between mendrel bent and crush bent?
Am I better off with stainless pipe or the aluminized stuff?
Thanks
Laughing Gas
Joined: Mar 2007
Posts: 1,063
Likes: 329
From: Ontario
Originally Posted by SDTruckMan
Sorry, wasnt implying that the magnaflow was going to net more hp/torque, but rather rob the hp/torque that the truck already provides caused by his custom set up vs going with a kit direct from magnaflow.
How can I tell the difference between mendrel bent and crush bent?
Am I better off with stainless pipe or the aluminized stuff?
Thanks
How can I tell the difference between mendrel bent and crush bent?
Am I better off with stainless pipe or the aluminized stuff?
Thanks
Mandrel bends are true bends in the piping, without restrictive crimped bends. The pipes look like they were made that way when you see a proper mandrel bend. You'll know what I'm talking about when you look at a crimped bend compared to a mandrel bend. Special tools/machines are used to make these bends, so if this place is a true custom exhaust shop, they'll have these tools.
Elder User
Joined: Feb 2003
Posts: 881
Likes: 0
From: NJ ... the garbage state
the flowmaster kit fits all 04-07 v8 all cab configurations, so i am not sure why any others should fit differently on differnt years.
here is your rear wheel dyno with a magnaflowfor everyone who continues to believe that a well designed and tested exhaust system will make you lose power. improved flow with properly sized and tested pipes will only increase mpg and hp/torque, so long as you drive it the same way with both.
http://www.magnaflow.com/05news/maga...ruckinpg03.asp
here is your rear wheel dyno with a magnaflowfor everyone who continues to believe that a well designed and tested exhaust system will make you lose power. improved flow with properly sized and tested pipes will only increase mpg and hp/torque, so long as you drive it the same way with both.
http://www.magnaflow.com/05news/maga...ruckinpg03.asp
Laughing Gas
Joined: Mar 2007
Posts: 1,063
Likes: 329
From: Ontario
Originally Posted by iskybantilus
the flowmaster kit fits all 04-07 v8 all cab configurations, so i am not sure why any others should fit differently on differnt years.
here is your rear wheel dyno with a magnaflowfor everyone who continues to believe that a well designed and tested exhaust system will make you lose power. improved flow with properly sized and tested pipes will only increase mpg and hp/torque, so long as you drive it the same way with both.
http://www.magnaflow.com/05news/magazine/05truckinpg03.asp
here is your rear wheel dyno with a magnaflowfor everyone who continues to believe that a well designed and tested exhaust system will make you lose power. improved flow with properly sized and tested pipes will only increase mpg and hp/torque, so long as you drive it the same way with both.
http://www.magnaflow.com/05news/magazine/05truckinpg03.asp
Dyno tests on the stock SuperCrew prior to installation of the MagnaFlow system showed baselines of 211.8 hp at 4,300 rpm and 308.7 lb-ft of torque at 2,310 rpm. With the MagnaFlow system in place, our SuperCrew hit 227.6 hp at 4,500 rpm and pumped out 310 lb-ft of torque at 2,350 rpm.
Considering your average stock screw puts down 240 rwhp stock (04-07), I'm not sure how they came up with these numbers at Magnaflow in the article you posted. I'd have to see it to believe it, and I'd also like to know if they added any other mods in the process. I've seen a lot of dyno pulls and the results from modded vehicles in my time, and I've never seen a catback net that much power all on it's own, but hey, who am I to say?
Last edited by last5oh_302; Aug 23, 2007 at 08:26 AM.
Thread
Thread Starter
Forum
Replies
Last Post
CobraGT40
1999 - 2003 7.3L Power Stroke Diesel
8
Mar 9, 2011 01:32 AM