MichaelP Posted January 8, 2011 Report Share Posted January 8, 2011 hi everyone. my car is in shop getting ready for some road racing later this year. the front suspension is changing and it was brought to my attention that this would be a good time to upgrade to different headers. I don't have any engine mods yet. I don't drive the car on street and I'm probably NOT going to modify engine that much to increase HP dramatically. Is It worth (in terms of better exhaust flow and maybe increase in HP) to do this? are there any disadvantages? thanks mike. Link to comment Share on other sites More sharing options...
dbackg Posted January 8, 2011 Report Share Posted January 8, 2011 Absolutely! Contact Alex, aka, vapor08GT500 Check out his Dynatech header setup on my Super Snake: http://www.teamshelby.com/forums/index.php?/topic/57401-dbackgs-super-snake-vert-upgrades/page__st__0 http://www.mackenziemustang.com/ http://www.afabcorp.com/AFCO_Dynatech_USbrake/merchant.mvc?Screen=SFNT&Store_Code=Dynatech Alex will get you set up on a complete system. Link to comment Share on other sites More sharing options...
jsarkis Posted January 8, 2011 Report Share Posted January 8, 2011 No real disadvantages as long as you go with the dynotechs so you can drop the tranny for a clutch replacement without removing the headers. They are a pita to install and kinda expensive, but you'll save some weight and add about 25-40rwhp if your car is stock. It will also drop your boost about a 1lb. because their less restrictive. Headers really come alive with high hp applications, but if you can afford it why not. Link to comment Share on other sites More sharing options...
MichaelP Posted January 8, 2011 Author Report Share Posted January 8, 2011 ok. thanks for advice. I will check out dynatech. m Link to comment Share on other sites More sharing options...
Spectre500 Posted January 18, 2011 Report Share Posted January 18, 2011 ok. thanks for advice. I will check out dynatech. m You will absolutley love the sound of The 1 7/8 Dynatechs with the 3 inch collectors. zero fitment issues and to me it is my favorite mod. The Camaros and Ricers will all be wondering what you have stuffed under the hood as you blow by them! Link to comment Share on other sites More sharing options...
03 DSG Snake Posted January 18, 2011 Report Share Posted January 18, 2011 You will absolutley love the sound of The 1 7/8 Dynatechs with the 3 inch collectors. zero fitment issues and to me it is my favorite mod. The Camaros and Ricers will all be wondering what you have stuffed under the hood as you blow by them! What mufflers are you running? Link to comment Share on other sites More sharing options...
MustangSal500 Posted January 18, 2011 Report Share Posted January 18, 2011 Get the dynatechs, i have them and love them! everyone will compliment you on the sound and they have the best performance results. Get with vapor08gt500 (alex) he supplies them and you wont regret it! Link to comment Share on other sites More sharing options...
MichaelP Posted January 18, 2011 Author Report Share Posted January 18, 2011 ok. My installer is looking into all of this for me. So, am I looking at headers, high flow cats, h-pipe and new mufflers? M. Link to comment Share on other sites More sharing options...
Joe GT500 Posted July 25, 2011 Report Share Posted July 25, 2011 Question....SHELBY catalog advertises KOOKS headers...the SHELBY Speed shop advises American Racing headers. WHICH is better??? Has anyone seen a dyno comparison of headers BY manufacturer? Link to comment Share on other sites More sharing options...
glroy Posted July 25, 2011 Report Share Posted July 25, 2011 Get the dynatechs, i have them and love them! everyone will compliment you on the sound and they have the best performance results. Get with vapor08gt500 (alex) he supplies them and you wont regret it! ++ get the whole dynatec package and ask Alex about his mufflers. . Link to comment Share on other sites More sharing options...
zporta Posted July 25, 2011 Report Share Posted July 25, 2011 I want to get dynatechs but I really want a o/r h pipe to go with them Link to comment Share on other sites More sharing options...
SteelTownStang Posted July 25, 2011 Report Share Posted July 25, 2011 The OEM headers flow pretty good. There's no significate gains in HP. Installation is difficult. Money can be better spent elsewhere IMO. HOWEVER, if you have a reputable installer and the $, go for it... Link to comment Share on other sites More sharing options...
one_quik_pony Posted July 26, 2011 Report Share Posted July 26, 2011 The OEM headers flow pretty good. There's no significate gains in HP. Installation is difficult. Money can be better spent elsewhere IMO. . They are a pita to install and kinda expensive, but you'll save some weight and add about 25-40rwhp if your car is stock. It will also drop your boost about a 1lb. because their less restrictive. Headers really come alive with high hp applications, but if you can afford it why not. Is there any data to support either claim? The OEM manifolds don't look too efficient. Does anyone have any "before and after" dyno pulls? We can speculate all day... Link to comment Share on other sites More sharing options...
2nd2none Posted October 13, 2011 Report Share Posted October 13, 2011 I had the Dynatech headers with 2.5" high flow cats installed a couple weeks ago as well as the Alex's MAC mufflers. The sound is nice but if I could go back in time I wouldn't have gotten them. The headers actually come down below the frame of the car and since I'm slightly lowered using the Ford Racing FR3 package I scrape on speed bumps all the time. I'm going to be going with some 18" wheels and the tires on the set will drop me about another 1/2" so its gonna scrape even worse. I went with the high flow cats since I'm in CA and I didnt want a cop to look under my car and notice the lack of cats. Now I see this on another forum and I'm leaning more and more to just going back to stock exhaust manifold and my Roush Extreme catback. http://www.svtperformance.com/forums/shelby-gt500-150/802858-pulled-dynatech-cat-morning.html I initially kept the Roush after I put the headers on but it was Nascar loud/obnoxious. I kind of expected that so I already had purchased a set of mufflers from Alex. They made the car sound a ton better but the tips on these mufflers were all scratched up and looked like crap. I was too eager to get some mufflers on the car that I didn't bother sending them back to MAC or Alex. Link to comment Share on other sites More sharing options...
NMAv Posted October 13, 2011 Report Share Posted October 13, 2011 I don't have the before and after data yet. Need to go back to have the car dyno'ed again but wanted to wait until I got a few other suspension parts so I could get everything done at once. I went with the American Racing Headers (ARH), high flow cats with H pipe configuration. Now the car has an "in your face" sound to it. Definately no sneaking home late as it is loud. I'm going to add a second set of mufflers (there is post around here somewhere about that modification that will get rid of the tinny sound the exhaust now has). RE: Dynatech vs ARH. Dynatech are more reasonibly priced but I have heard from several sources that they have had some quality control issues in the past with their welds. Not sure if that is still the case but I felt this was a one time and done type thing so I went for the few extra dollars and got the ARH. Also, Dynatech didn't have an H pipe for the 2011 when I first started looking. As far as quality - very nice fit and looks like a quality product. Link to comment Share on other sites More sharing options...
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