Originally Posted by KiCk aSs FX4
have you thought about removing two of your cats? has anyoen else done that? I remember josiah I think removed his precats and it sounded pretty badass. ive been thinking about doing that but never got around to it
But he removed the rear two cats since the 02 sensors are in front of them. |
1 Attachment(s)
|
Originally Posted by BlackDawg
It may not make a noticeable difference on that short run but then again the overall system is very short when dumped. And it's far from hearsay and what not but short of side by side dyno I can't say it's fact either. Besides what I've read here, I talked with several exhaust shops about diameters as I wanted to go as big as possible and they all said the same thing about losing low end torque when going big. Go 2.5 at the absolute biggest for dual and the longer the better for torque due to pipe friction backpressure. They said the torque will come in a few hundred rpm later if you get too big and lose too much backpressure. If adding dumped tips you can't see the inside anyway so why not run the 2.5 as far as possible. If this is not true I hope someone will chime in bc I'd prefer bigger diameter pipes for looks and I'm getting ready to change up my system again.
we are talking tips here, right? if so, i want to see the exhaust shop that dyno'd the same vehicle back to back with nothing more than a exhaust tip change to document the "couple hundred PRM difference". of course, if you're talking about a enlarging a whole system, then that's a whole different animal. |
I hate you guys! I just ordered my H Pipe and Dynomax mufflers . . :lol:
I think I'm going to go cut my exhaust off. :coffee: |
hey thump, off topic, how much was the linex and did you have linex of orlando do it?
|
If you dump do it after the axle.. Soooo much quiter and less drone in the cab.
http://img147.imageshack.us/img147/9...aust0014ey.jpg http://img147.imageshack.us/img147/7...aust0024xe.jpg I always get compliments on my exhaust. So it can't sound that bad. |
It's not going to matter where I dump it. My tires are too loud to make a difference. I'm running nothing right now and its not even that loud in the truck with the windows up. LOL
Originally Posted by FordScrew24's
hey thump, off topic, how much was the linex and did you have linex of orlando do it?
|
Thump, what H pipe did you go with?
Slick, I never said there was a side by side dyno and I already agreed that on that short of a run it may not make a difference. At the same time it definitely wouldn't hurt to run it full length. |
Summit Racing has a universal H-Pipe, it was only like $35. :thumbsup:
|
Originally Posted by FATHERFORD
If you dump do it after the axle.. Soooo much quiter and less drone in the cab.
http://img147.imageshack.us/img147/9...aust0014ey.jpg http://img147.imageshack.us/img147/7...aust0024xe.jpg I always get compliments on my exhaust. So it can't sound that bad. Do you happen to have a sound clip of your exhaust? I am still trying to figure out what I want to go with. |
Thanks, pictures and a full report are expected.
|
Does dumping so close to the spare tire affect anything. I know some guys on here are having trouble with the maggie dual rear kit setting the spare on fire.
|
Originally Posted by ThumperMX113
I hear you about the H pipe versus the X pipe since a H pipe is going to provide more torque. I was doing it for the mere sound purposes and I couldn't find a H-Pipe online. I might end up just doing a standard turn down out of the muffler like Black3V's got. .
I really like those but I wonder if they make them in 2.5" inlet. :coffee: i know this post is a week later... still hope it helps. |
I got turn downs installed today, went in for a broken exhaust hanger and had the shop cut off the old tips and weld on two turn downs. They exit at the rear corners of the bumper. Cost $25, and looks so much cleaner.
|
here is some good reading about the h and x pipes.
For any performance exhaust system, some type of crossover connecting the two sides of a dual exhaust system is important because it acts to balance the two banks of the engine. The common H-style crossover is good at balancing sound pulses between the two halves, but does little to promote scavenging because the exhaust gases tend to follow the path of least resistance, which is straight through each pipe rather than taking the 90-degree turn through the H-pipe into the other half of the system. In an X-pipe system, however, where the two sides of the system intersect, the gasses have no choice but to intermingle as they pass through the junction. This promotes improved scavenging effects by smoothing out uneven exhaust pulses from the engine’s firing order. It also helps quiet down the exhaust, resulting in a mellower, less raspy tone. According to Magnaflow, the faster acceleration of the gasses through an X-pipe causes them to flow in a linear fashion parallel to the walls of the tubing rather than tumbling. This “laminar” flowing gas is much quieter than tumbling gas, resulting in an exhaust tone up to 8 decibels quieter than a traditional H-pipe. |
All times are GMT -4. The time now is 01:40 PM. |
© 2024 MH Sub I, LLC dba Internet Brands