Straight pipe exhaust

[wldstng]

Hey guys got a question for you. I have a 3" catted mishimoto downpipe. I had a magnaflow competition cat back exhaust but I got rid of it and had my vehicle straight piped. I like that I can hear the turbo spool really well. I think it might be due to the car having a 3" Y pipe. The exhaust then tapers off to a 2.5" with 4" tips. My problem is that I hate the Raspy(honda) noise at higher rpms. How can I solve this issue. Is all I need is a resonator? Or a set of axlebacks?

Sponsored

 

[KadenW23]

I basically have the same exhaust just a little larger tips. and I've been through 4 exhaust setups and haven't found a way to solve this problem without making the exhaust practically silent. Unfortunately I think its just going to be something that we are either going to have to embrace and accept since we have 4 cyl, or just throw on a muffler and deal with it being super quiet.

Even in the large v8 coyotes there is a lot of rasp in the higher RPM's. The rasp just has a different tone due to the amount of cylinder that are causing it.

But if you find a solution to this rasp problem without making the exhaust note sound nonexistent, or like a Subaru. Please share because I would love to know!

 

[wldstng]

Yeah it's kind of annoying. I'm going to try adding some axle backs. I hear the MBRP are practically straight through so we'll see.

 

[sauerkraut]

MBRP's still have some rasp in the higher RPMs, but its deeper so it doesn't sound too rice IMO.

 

[CommyO]

Can you guys post some clips on youtube of this setup. All the 'straight piped' videos on youtube are all catted which isn't even technically straight piped.The one I heard in person sounded really good when revved to about 4-5kish?.

 

[wldstng]

They sound good on the outside but in the cabin I think it's a whole different story. It can get obnoxious. I'm still catted, but I have a 3" Y pipe. I'm wondering how the MagnaFlow competition axlebacks would compare to the MBRP's

 

[Joe_S550]

why label it as sounding like a ricer or a Honda? Guarantee if you compare the two they wont sound alike. Just rewire your thinking to: "Its American Muscle" not ricer

 

[KadenW23]

yeah, it sounds nothing like a ricer. but it does have some 4cyl rasp which is so commonly associated with a "ricer". I get off work at 5, and will go down some back roads in my down and post a short clip to youtube, then ill post the link for you guys.

If you cant wait till then you can check out my Instagram where I have a short idle video and 5k rev. My username is [MENTION=23881]KadenW23[/MENTION]

 

[TurboMetal]

Not sure if my recent experience will be helpful but here it goes.

Yesterday I had a muffler shop put in a rather restrictive resonator on my Magnaflow comp cat-back. Well it was too restrictive, to the point that my car struggled to make boost after 13psi. But it was sure quiet! haha

It had to go of course, so I went back and they changed it out for a far less restrictive one (Solo Performance MR series short tube). It didn't quiet the car down a whole lot overall but it definitely helped with noise levels on the highway and higher rpm noise.

 

[NewyorkEcoBoost]

I was running a 3 inch cat less downpipe open (open downpipe) and it sounded like complete shit and I had a lot of turbo lag so what I did was I bought a 3 inch y pipe and 2 3 inch resenators went to a muffler shop and made them do 3 inch piping all the way back with the 2 resenators right in the middle . My car sounds great now you can't really here it unless I step on it and I feel a lot more power

 

[KadenW23]

So here is the link to the video promised you guys. The first portion of the video was a cold start right after work, and then the middle part was a warm start with a few revs.

[ame]

 

[MagnaFlow]

A small resonator in the center section would most likely do the trick. Sure, it may quiet things down just little, but it may be worth it have a more pleasing tone.

 

[Joe_S550]

You guys are crazy! Embrace the sound, your ecoboost makes its unique

 

[Doskiller]

Mr. Magnaflow is right. I have a Stainless Works turboback on mine and it is essentially a straight pipe exhaust system. I wanted it loud but man it was unreal volume between 2nd and 4th gear. It sounded like I was just running a downpipe with no exhaust at all. I inserted a Vibrant Performance resonator between the downpipe and the Y and it brought the sound in nicely. It deepened the tone and made it sound normal-ish between 2nd and 4th for daily driving, but when you mat it, it gets loud ......... just the way I like it. There is a thread on here devoted to this very issue that peeps were posting in about a month ago. If you can locate that it has some good info in there as well ............ ;-)

Sponsored