Piecing together a full 2.5" resonated cat-back exhaust. Need help and info.
#1
Piecing together a full 2.5" resonated cat-back exhaust. Need help and info.
We all know getting a full stainless steel mandrel bent exhaust is expensive. I've been toying with the idea of getting all of the materials online, and having them cut and welded according to a detailed plan.
All of the parts, including mandrel bent sections, straights, flanges, resonator and mufflers can be bought for around $500 shipped online. The question is: will I save any money if I bring the materials and plan to a reputable welder?
There's a lot I'm still unsure about when it comes to the b-pipe. Particularly the angles before the mid-muffler, at the y pipe, and from the y to the mufflers. So pretty much everything.
Here's a rough sketch and some notes I made. Also I've uploaded a snapshot of my cart contents, showing how well priced you can find this stuff for.
Any technical information, criticism, reality checks, ect. are welcome.
All of the parts, including mandrel bent sections, straights, flanges, resonator and mufflers can be bought for around $500 shipped online. The question is: will I save any money if I bring the materials and plan to a reputable welder?
There's a lot I'm still unsure about when it comes to the b-pipe. Particularly the angles before the mid-muffler, at the y pipe, and from the y to the mufflers. So pretty much everything.
Here's a rough sketch and some notes I made. Also I've uploaded a snapshot of my cart contents, showing how well priced you can find this stuff for.
Any technical information, criticism, reality checks, ect. are welcome.
#9
I started planning my exhaust since getting a custom header. I will be going with 3" though. I am still undecided between 1 or 2 mufflers, but I am leaning more towards 1. It will flow better, cost less, and weigh less. The only negative would be looks. I plan on buying a 2nd used cl bumper and cutting a section out to plastic weld to the left exhaust cutout in the bumper. When it is all complete I will have around $3500 into just my exhaust.
I drew out a diagram for the hell of it with what I came up with so far. I used all 3" vibrant T304 stainless parts besides the Magnaflow muffler. The resonator can be moved further down if wanted.
Here is the parts list from amazon. Depending on muffler the materials cost 848.31 or 871.70. I will probably have King Motorsports weld it for me.
Magnaflow muffler #14819 $172.05 4" Tip
or Magnaflow muffler #14835 $195.44 7" Tip
Straight Tube 5 ft. #2642 $98.45
45 degree bend x 2 #13102 $45.40 x 2
U-J Bend Tube #2611 $106
Ultra Quiet Resonator #1142 $94.76
Turboflex Coupling 6" #61006 $76.42
Exhaust hangers #1198 $59.15
V-Band Flange Assembly x 2 #1491 $75.79 x 2
I drew out a diagram for the hell of it with what I came up with so far. I used all 3" vibrant T304 stainless parts besides the Magnaflow muffler. The resonator can be moved further down if wanted.
Here is the parts list from amazon. Depending on muffler the materials cost 848.31 or 871.70. I will probably have King Motorsports weld it for me.
Magnaflow muffler #14819 $172.05 4" Tip
or Magnaflow muffler #14835 $195.44 7" Tip
Straight Tube 5 ft. #2642 $98.45
45 degree bend x 2 #13102 $45.40 x 2
U-J Bend Tube #2611 $106
Ultra Quiet Resonator #1142 $94.76
Turboflex Coupling 6" #61006 $76.42
Exhaust hangers #1198 $59.15
V-Band Flange Assembly x 2 #1491 $75.79 x 2
Last edited by brian6speed; 10-22-2013 at 12:44 AM.
#10
Brian, Have you considered running no muffler? I know it sounds crazy, but if you ran one 18" standard vibrant resonator, then two vibrant ultra quiets you might see the same flow and keep dual tips.
Got the idea here, and I'm considering it for my setup.
It's a GXP but still gives us an idea of how quiet the system could be, while still being all straight through.
Got the idea here, and I'm considering it for my setup.
It's a GXP but still gives us an idea of how quiet the system could be, while still being all straight through.
The following users liked this post:
d1sturb3d119 (10-24-2013)
#14
I could go with something like this plus ultra quiet resonator and just weld on tips but I don't think that will be quiet enough for the streets.
http://vibrantperformance.com/catalo...roducts_id=271
http://www.mandrel-bends.com/catalog/shopping_cart.php
Their v-band flanges are cheaper but don't look like the same quality as vibrants. Vibrants seem to have a small lip that the pipe slips into also for easy/better fit. Not sure about those.
Last edited by brian6speed; 10-22-2013 at 12:37 PM.
#15
Pro
iTrader: (6)
Resonators are basically glass pack mufflers, I just picked up an 18" Dynomax and it looks just like a cherry bomb. LOL I plan on running resonated single 2.5" back to a Flowmaster 44 1 in 2 out and pipe out in the stock locations.
#16
Just found this. $170 for 2.5" Aluminized Steel, $245 for 2.5" 304 Stainless.
http://www.mandrelexhaustsystems.com...EXHAUST/Detail
http://www.mandrelexhaustsystems.com...EXHAUST/Detail
The following users liked this post:
03 tls nc (10-23-2013)
#19
Burning Brakes
iTrader: (1)
I would suggest a cutout instead and custom piping until the cutout. Beyond that the mufflers are an unnecessary expense. Using a resonator or cherry bomb would do just fine. Bigger the resonator the quieter the car. You'll get it to scream at higher RPM's but purr at freeway speeds with no drone.
01CLinprocess is right on.
Also talk to a few shops. Those guys buy their pipes for a lot cheaper and may be able to hook you up.
01CLinprocess is right on.
Also talk to a few shops. Those guys buy their pipes for a lot cheaper and may be able to hook you up.
Last edited by d1sturb3d119; 10-24-2013 at 06:57 PM.
#20
So $450 for 2.5" aluminized, resonator, and two magnaflows. (+ some cutting and welding)
Good deal eh?
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