I was just curious after hearing the new ford GT. How would down pipes with no cats and straight exhaust no muffler or resonators at all would sound. I obviously know it would be loud at WOT but I have been thinking about doing this on my SHO my powerstroke diesel is already straight piped and I love the sound and you can actually keep it reasonably quiet when you want to with a little throttle control. IMO the SHO is way to quiet I like to here that turbo spool.
Anyone ever tried Stright pipes on there SHO?
- Thread starter MEANSHO
- Start date
I've tried this, it is loud and actually not that bad. The only bad thing is the drone you will have inside the cabin with the free-flowing system.
If you were interested in a custom setup I would do straight pipes from the down-pipe back and use some a high-flow resonator and chambered mufflers to kill drone. Kind of like the MDesign exhaust system that is currently for sale, though as it sits it is the same thing as practically a straight exhaust since all the components are high flowing. Throw on some chambered mufflers and I believe you could have something nice and unique.
If you were interested in a custom setup I would do straight pipes from the down-pipe back and use some a high-flow resonator and chambered mufflers to kill drone. Kind of like the MDesign exhaust system that is currently for sale, though as it sits it is the same thing as practically a straight exhaust since all the components are high flowing. Throw on some chambered mufflers and I believe you could have something nice and unique.
IHeartGroceries
New member
Mind numbing drone to go along with your loudness.
wasinger3000
New member
Unless you build a j pipe resonator tuned to the drone frequency like I did.
This post is old but I would like to get a better understanding on the significance of an x-pipe. I have an appt on Sept 10th to remove my 3rd cat and resonator. I have Thunderstorm 2.5" catless downpipes to the factory 2.25" 3rd cat and resonator, mufflers are deleted.
New setup will be 2.5" downpipes to 2.5" straight pipes back with tips. No cats, no resonator, no mufflers.
Do I really need an x-pipe? I understand our turbos don't flow evenly and an x-pipe would help to balance back pressure....but what is the benefit of balancing back pressure if the intital flow is uneven? It seems to me an x-pipe would not help the turbos flow evenly so whats the point of balancing the back pressure?
Would it hurt to let them flow naturally, uneven or not? And I wonder if any type of loss of low end torque would actually help my 60ft due to less traction loss.
Any further insight and information will be well received. If collectively we're not sure I'm not having an x-pipe installed.
New setup will be 2.5" downpipes to 2.5" straight pipes back with tips. No cats, no resonator, no mufflers.
Do I really need an x-pipe? I understand our turbos don't flow evenly and an x-pipe would help to balance back pressure....but what is the benefit of balancing back pressure if the intital flow is uneven? It seems to me an x-pipe would not help the turbos flow evenly so whats the point of balancing the back pressure?
Would it hurt to let them flow naturally, uneven or not? And I wonder if any type of loss of low end torque would actually help my 60ft due to less traction loss.
Any further insight and information will be well received. If collectively we're not sure I'm not having an x-pipe installed.
I don't see how our turbo system flow "unevenly". And in any turbocharged system the turbo charger provides all the "backpressure" the motor will ever need. Any sort of piping or restriction after the turbine increases spool time and reduces performance. So straight through all the way back is best. X-pipe wont change anything.
Side note: If your making 15 psi boost going into throttle body, there has to be atleast 15 psi pressure (backpressure) in the exhaust manifold to drive the turbine.
Side note: If your making 15 psi boost going into throttle body, there has to be atleast 15 psi pressure (backpressure) in the exhaust manifold to drive the turbine.
I agree with BigMac. From the factory the third cat balances. Think of it this way. An x pipe can be had for like $20-25 and won't hurt anything if you put it on. Also I have never hear of an instance where an x pipe made something worse or sound worse. It's always been for the better. Currently i have 2.5" catless down pipes to straight 2.5" with an x pipe in the original third cat location back to 2 18" vibrant resonators. It's horrendously loud at times down low, but that's my opinion.
geophb said:
There is a lot more than just that. Like the number of bends and at which angle, I don't think it'll make a difference, but putting an x pipe in is not going to have any cons. Only pros if it does do something. I'd rather just pay the $20 for peace of mind that I am optimizing my car to it's fullest.
802SHO said:
https://www.summitracing.com/parts/jex-sxp4
This is the one I have on my car. Dirt cheap. And also looks a lot better than the one pictured with more direct flow patterns.
I did talk to the shop today about an xpipe. Its a custom exhaust shop so they said they don't stock much bc they can make it. And yes I can choose all stainless or aluminized. What I am looking for is a set up like this Audi has. Staggered and slanted dual 4" quad tips. I think it looks mean! Will have to cut the rear valance
Because of the bootsted nature, any level of widening as long as it is done right helps spin-up and response of the turbos. 4" MIGHT be a bit much with the stokc snails but i defeer to those who have replaced their turbos for more accurate testimony..
as to sound.. ugh bigger pipes for SHO's == droney blatty awfullness... but my exhaust noise preferences are narrow.
as to sound.. ugh bigger pipes for SHO's == droney blatty awfullness... but my exhaust noise preferences are narrow.