Now I need to decide what muffler to go with. I was planning on a Magnaflow SIDO with rear exit (3" in, 2.5" dual out), but now I don't know. I went by a muffler shop today and the guy recommended doing duals. He said I wouldn't notice any low end loss because of the headers, but I thought that there would be still.
4.6 281ci REPRESENT -Best 0-60 7.4 9-8-09 - but i think i can do better
*Edge Evo* Cowl Hood* 2.5" leveling kit* 17" AR Victor Rims* 285-70-17 Nitto Terra Grapplers* 18" Maggie muffler
*K&N drop in Gotts mod* Pioneer P4 HU* CerwinVega Vmax 10* Fusion 6.5" Components* keenwood AMPS
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2005 ford f-150 XLT Screw 4x4 2.5" leveling kit 20" platinum rims with 35" toyo m/ts full 3 inch exhaust with twister muffler. Pioneer Avic-D1 type R components and 2 12" kicker cvr subs and many other things
wow that sounds mean! put on a Borla Xr1 or a magnaflow magnapack. bullet will be too loud. Batn is running LTS and an XR1 and it sounds meannn. you can put a Y after the muffler and run it dual out the back.
x pipe it, with 2.25 mandrell bent duals in ss for ultimate exhaust-no bottom end loss!
The pipes from the Dynatech kit are 2.5" after the cats, and it y's into a single 2.5". If I used 2.25", I would be stepping down. I haven't seen any x-pipes that have different inlet and outlet sizes, so where would you suggest I step down? Before the x-pipe? And would a quarter inch change it much? Thats my goal - no bottom end loss. I don't care if I have to use a 2.5" in, 3" out y-pipe to a SIDO or a SISO muffler.
The pipes from the Dynatech kit are 2.5" after the cats, and it y's into a single 2.5". If I used 2.25", I would be stepping down. I haven't seen any x-pipes that have different inlet and outlet sizes, so where would you suggest I step down? Before the x-pipe? And would a quarter inch change it much? Thats my goal - no bottom end loss. I don't care if I have to use a 2.5" in, 3" out y-pipe to a SIDO or a SISO muffler.
I would step down to the 2.25'' right off the Dynatech pipes were you cut out the Y pipe. Then add the 2.25" X pipe as far forward as you can followed by the rest of the set up of your choosing.
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2003 F150 4x4 FX4 (White): 5.4L, Custom Tuned Gryphon Programmer, DIY Air Intake Mod, True Duel Straight Pipes With X-Pipe, Factory Tech Separator Plate, F250 SD Trans Cooler, Digital Trans Temp Gauge, Timbren Rear Suspension Enhancement System, Mag-Hytech Rear Diff Cover.
you could put a reverse y-pipe in after the dynatech y-pipe, and you would sort of have an x-pipe, and it should maintain enough back pressure so you won't loose that much bottom end if you go "true duals" from there back nomatter the size(unless you go over 2.5). i've never seen it done, but it might work?
I would step down to the 2.25'' right off the Dynatech pipes were you cut out the Y pipe. Then add the 2.25" X pipe as far forward as you can followed by the rest of the set up of your choosing.
x2-phil
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2004 E Series Super Duty
-Troyer Performance tuned x-cal 2
-ASP Underdrive pullies & Goodyear Gatorback Belt
-Magnaflow 2 1/4" SS, x-piped,mandrel bent dual exhaust-#14335 mufflers WWW.TROYERPERFORMANCE.COM
2006 Honda CBR1000RR-157.2 rwhp,82.5 ft.lbs.tq
2010 Honda crf 450r's-+25,Vet A,+40A
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