Total gains for O/R x pipe + 93 tune? -

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Total gains for O/R x pipe + 93 tune?

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Old 01-09-2012, 11:47 AM   #1
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Default Total gains for O/R x pipe + 93 tune?

How much total HP would I gain by going to an O/R x pipe and putting a SCT 93 octane tune on the car at the same time? anyone done a before/after dyno with these changes?

Also, would having flowmasters be worse for hp than some type of straight through muffler like borla stingers?
2011 5.0 6 speed manual BAMA tuned with 20x10.5 Forgestar f14's with 315/35/20 Bridgestone s007, 19x9's with 275/40/19 Bridgestone Potenza S-04 Pole Position, Koni sport adjustable dampers, Steeda sport springs on the front, stock springs rear, Steeda 101mm CAI, UMI adjustable panhard bar, J&M Extreme joint LCA's, Strano adjustable front sway bar, Eibach camber bolts, QTP electric cuouts, stock mufflers.
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Old 01-09-2012, 12:08 PM   #2
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I have not done a before/after dyno for a tune and mid pipe but peak gains might not be more than 10 or 15 rwhp. You might feel a better pull throughout the rpm range though.

IIRC someone did a flow test on common mufflers and Flowmasters (I think they were the 40's?) were among the worst, but I doubt anyone could feel the difference between a chambered muffler like the Flowmasters and a straight through muffler.
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Old 01-09-2012, 02:46 PM   #3
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A 93oct tune should gain you a little power across a wide range of rpm. The X-pipe might gain you a little at peak. I'd bet on about 8-10rwhp gain at peak if a custom dyno tune is made.

The Flowmasters won't cost you any power vs straight thru mufflers on your car. The difference is pretty small on anything short of a boosted high HP motor.
HiTech stageII cams, BBK Ceramic LongTubes, MAC ProChamber, Flowmaster50series, SteedaUDP, JLT CAI, MGW, SVT Focus Fuel Pump, H&R Race springs, Bilstein HD, MM CC Plates, MM FLSFC, Eibach Swaybars, MM LCA, MM Pan-hard, 3.91gears, AuburnPro diff, Moser31splines, 17x9 & 17x10.5 Bullitts, Dark smoked headlights w/ 55W HID, chin spoiler. 283rwhp/298torque (motor), 417rwhp/498torque (latest nitrous tune) 12.5@110.5mph (motor w/ 1.77 60'), 11.66@120.9mph (1.78 60')on nitrous.
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