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#1
03-16-2007, 06:30 PM
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Second gen bird crossflow or not
Is there a big difference in flow between the Pypes crossflow exhaust and the dual muffler style for a 70-81 bird. I like the additional ground clearance from the crossflow but don't want to give up any power.
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When you really do something right it's like you didn't do anything at all 1931 Pontiac 5 window coupe OHC6 powered 2015 GMC Yukon SLT |
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#2
03-17-2007, 01:20 PM
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Are you talking about a stock 2 muffler setup, or a true dual 2 muffler setup? I've got a crossflow on my 75 TA and not having those 2 mufflers underneath gives me more clearance under the car and looks soooo much better tucked in under the car. Installed with headers & no cats... sounds mean as hell!
As far as flow goes, versus stock is a no brainer. I think 2 duals vs. crossflow would flow the same. I've seen the inside of the crossflow muffler, not much to it for resistance. Even if the crossflow was a tad under for flow, IMHO clearance makes up for it.
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THREADKILLER 1975 Trans Am |
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#3
03-21-2007, 10:24 PM
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Literally no difference in flow. It is a true dual exhaust with just one housing for what is basically two separate mufflers.
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--------------------------- Fool Around, Get Hurt, Don't come Crying to me. |
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#4
03-25-2007, 09:21 AM
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Quote:
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When you really do something right it's like you didn't do anything at all 1931 Pontiac 5 window coupe OHC6 powered 2015 GMC Yukon SLT |
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#5
03-25-2007, 03:15 PM
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Ccass, how loud is your crossflow? I had a Flowmaster crossflow in my 77 and didn't like it at all. Way too loud for me.
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Some Fear, Because if you've never been afraid- just a little. You're obviously not going as fast as you could be. |
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#6
03-25-2007, 06:29 PM
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Way quiteter than the Flowmaster Crossflow. No comparison really. There are sound video's on the Pypes website. Listen to the 70 Yenko Nova especially. That car got the new quieter version of the Crossflow muffler.
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--------------------------- Fool Around, Get Hurt, Don't come Crying to me. |
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#7
03-25-2007, 09:08 PM
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I'llcheck out the Yenko. It wasn't there the last time I looked at the pypes site. The crossflow system seemed quieter than the Flowmaster in the clips, but I was concerned that it may be a different story live.
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Some Fear, Because if you've never been afraid- just a little. You're obviously not going as fast as you could be. |
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#8
03-27-2007, 02:10 PM
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I hope the new design crossflow muffler sounds better than the original offered in the initial run of the system.
That yenko really sounds nice!
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Home of WFO Hyperformance Shaker induction. |
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#9
03-27-2007, 03:46 PM
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I like mine. If I could ever borrow a video camea to do a sound clip/video I'd share. Crikeys! One of these days.
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12.84 @ 106.89 with street radials. 12.63 @ 108.39 on drag radials. |
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#10
03-27-2007, 05:54 PM
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Critter, if you do give us some idle sounds. Most of the clips never let it sit at idle, always bliping the throttle before they drop the hammer.
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#11
08-01-2007, 07:55 AM
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The ground clearance with the crossflow system is nothing short of amazing!!!
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1979 Trans Am SE Black & Gold, T-tops, 400/4spd!!!  I don't know whether I need a frontal lobotomy or a bottle in front of me?!  "A Camaro looks like it could kick your ass. A Trans Am looks like it's coming over to do it!" |
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