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Custom Dodge Ram Performance Mods - Engine - 5.7 HEMI V8 Discuss modifying your Dodge Ram with Performance Parts and Accessories!
Factory Spec: 5.7-liter HEMI® V8 engine - 390 horsepower, 407 lb-ft of torque.


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  #1  
Old 02-28-2011, 09:30 PM
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Default cuttin the cats...

im considering cutting the cats what kinda gain can i expect to see from it?
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Old 02-28-2011, 09:36 PM
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zip any thing after 96 has hi flow cats so basicaly ull get worst mpg and no more hp may i suggest no muffler, headers, cai, throttel body upgrade
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Old 02-28-2011, 11:12 PM
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I just ordered the ARH LTs w/high flow cats. I was told by them that I would get 4 more hp with no cats. You may get a couple more since you don't currently have high flow cats but I wouldn't bet the farm on it. Hope this helps
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Old 03-01-2011, 05:51 PM
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You won't see any impressive gains from junking the cats, even coupled with cutouts/exhaust. You will however throw codes unless you get O2 simulators to replace the downstream sensor. Best bet is to get yourself a set of the magnaflow high flow cats which will out flow the OEM ones and weld them into place behind a set of long tube headers.
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Old 03-02-2011, 12:58 AM
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I run my best quarters catless...my truck sounds like a beast without them...and almost like stock with them on...

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