2x pipes kill drone?

[mod mod t56]

I'm running a off road 3"exhaust from headers back and it has a bit of a drone some one told me if I I run a second X pipe under the Irs it will give me better back pressure and torque and help with the drone.... Any truth in that? I have a ported Eatonbut looking to go e85 twin screw in the near future

 

[moonltgold]

Negative for all three. Try changing mufflers - Magnaflows are good for drone.

 

[mod mod t56]

Thanks also looking to tuck the mufflers up under the car a little tighter and good muffler ship could prob do that right

 

[SLPRCTM]

A second "x" may help a bit but it is your 3" exhaust that is causing the drone. Anytime you change the speed of the exhaust sound waves, you change the tone and usually end up with a drone issue. This is what I did to try and get rid of it. I still have a very small amount of drone in a 100rpm range but my car is as quiet as stock. Lol!

 

[Anabolic]

SLP Very clean man! love it, even if it's quiet hows the performance of that setup?

 

[SLPRCTM]

Pretty good. I have a 2.3 whipple with a killer chiller. 13/18 psi, 91/100 octane, 564/632rwhp on a conservative tune from AED.

 

[mod mod t56]

Is there a difference between a narrow X and wide X mine sits apart alot more then urs but that's the concept I was getting at.... Any torque increase or loss over a single X connection... I thanks for the pic and the imput

 

[05satinGT]

A second "x" may help a bit but it is your 3" exhaust that is causing the drone. Anytime you change the speed of the exhaust sound waves, you change the tone and usually end up with a drone issue. This is what I did to try and get rid of it. I still have a very small amount of drone in a 100rpm range but my car is as quiet as stock. Lol!

Any exhaust vids? That undercarriage looks beautiful! No pun intended lol

 

[SLPRCTM]

I'm not too sure about the power differences between the two "x" types. My center muffler has a more straight type internal "x" and the rear is more of a "+" turned 45 degrees.

Thanks! Some nights I get bored so I put it up on the lift and start cleaning. I got bored one night so I polished the clutch cable cover and drive shaft. Lol!
The only sound clip I have is an idle video

http://i417.photobucket.com/albums/pp253/RNOVRIT/efa128ee.mp4

 

[jrgoffin]

I'm running a off road 3"exhaust from headers back and it has a bit of a drone some one told me if I I run a second X pipe under the Irs it will give me better back pressure and torque and help with the drone.... Any truth in that? I have a ported Eatonbut looking to go e85 twin screw in the near future

That was the whole point of the M-58 (i.e., FR-500) exhaust, and it works perfectly, but with specialized mufflers. Plenty of torque down low and great flow at higher RPM's when the doors inside the mufflers open.

Not sure about that with those 3" pipes though, you might be out of luck. Then again, so many guys think "loud" is the way to go.

 

[Comp04svt]

Would love to get my hands on one of those fr500 setups:-D

 

[black4vcobra]

My car has the FR500 catback, but the previous owner swapped out the mufflers for Flowmaster Super 40's, i don't know wtf he was thinking :nonono:

It still drones around 1800-2000 rpm with the Flowmasters

 

[vr4]

its popular on the mark viii for that reason. no personal experience with it though.

 

[mod mod t56]

A guy with a modded mark 8 told me about the 2x pipe set up for torque and drone.... I there r some cool set ups out there nice to see people out side the box