I Have the Reinhart Cobra Exhaust system on my Marauder. I was thinking of removing the cats and was wondering if their is anything to be gained or lost by doing so? Also was wondering if anybody has done a Dyno before & after on this too ?
I Have the Reinhart Cobra Exhaust system on my Marauder. I was thinking of removing the cats and was wondering if their is anything to be gained or lost by doing so? Also was wondering if anybody has done a Dyno before & after on this too ?
Dont remove them.
The loss of backpressure will kill your torque.
you will have better flow thru the exhaust, less restriction.
While your at it take off the mufflers too
I have heard that the mufflers alone are good for 16 HP
As a guess I would say 20+hp if you remove the cats and mufflers
what the heck, its florida, and we can do this if we want to......
Sold on 1/16/2012
MM 2003 300A
Reinhart Air-to-Air Vortech Supercharger #8, Art Carr Transmission, PI 3000 stall TC Triple disc, 4:10, TA Girdle and studs, Dynotech Driveshaft
DR Xcal2 tune, Motorcraft AGSF22C Plugs(Autolite 103) Trying some NGK Iridium, New ACCEL COP's, Rear engine cooling mod
180 deg. Thermostat, KOOKs headers, Magnaflow high flow cats (NO CATS), Magnaflow Mufflers (with stuffing blown out)
Addco front & rear sway bars, Metco drive shaft loop, Metco control arms, ProGuard Skid plate
Widened rims by Weldcraft w/Nitto 235/45 & 285/50, DynoPros Aluminium Door Sills
http://www.mercurymarauder.net/forum...do=view&id=474
TMF had a b4 and after dyno with the cutouts and no gain in power.
Without cats, the car will be obnoxiously loud.
Ride in my car, it has cats and mufflers, but the most free flowing pieces available.
It sounds like a big block, from 5 miles away!
I wouldnt worry about the loss of tq on a blown car. I would check on the mach 1 board for dynos of an auto mach with a catted x and with an o/r x. That is probably the closest numbers you will find. Cutouts vs an o/r pipe are not exactly the same so I would take that with a grain of salt.
2003 300A
Black Marauder with Tints
K&N Intake, Accufab TB, VRS catted mid pipe, SCT SF Tune, PHP Control Arms. Sold in 2014, totaled out in 2015
1994 Mustang GT
Red Convertible
1/2 Vampire, prefers to stay in a garage as opposed to seeing light.
All kidding aside now, is their any info on Dyno results on this ? Or has anybody else done this already or tested it them selves?
I am cutting my cats out so I can run C-116 race fuel for the race tune. QTP electric cutouts are also being installed for open header race applications. I have SW long tubes going through an X pipe with Flowmaster Delta 50's and will find our next week how much louder the car will be. Hopefully not too much louder. I have heard Mustangs with the cats out and good mufflers. Wasn't too loud for me. Loss of torque shouldn't hurt my application. My .02
Last edited by MarauderTJA; 01-09-2007 at 04:15 PM.
former owner - Extreme Procharger Marauder
2004 Silver Birch - Built 01-08-04 - Pur. 07-03-04
"Proud Member of Sunshine State Marauder's"
Extreme Procharger Bullitt Completed - still on the hunt for another 04 Marauder to build
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