Raspy header and weird noise
 

This is my current setup,

Fa20club 4-1 EL header
Agency power over/front pipe
Magnaflow catback

i'm catless

It's raspy after 3k RPM how could I make it less raspy? Should i change my over/front pipe to get a catted one?

Also,

I get this weird noise in the front that sounds like a tractor , flutter noise.
Nothing is leaking, i got it triple checked at my garage guy.

Could i maybe need a bigger gasket for the header?

Also would the raspy go away once I go turbo?

If your headers are catless you should go with a catted frontpipe
Imo,for having a good exhaust sounds(not to raspy)you need at least one cat

do you have any videos of how it's sounds?

A catted front pipe will help. I don't think 100%, but it will make quite a difference. I do believe that a turbo will muffle some of that in the future as well.

A resonator will help a good amount. I just put one on mine that had the same issue after 3k rpm.

Shouldn't it come with the catback and the front pipe?

I was thinking of putting back my stock front pipe/over pipe, and when i get the turbo i'll put the front pipe/ over pipe back in.

Hmmm, i might just put the stock front pipe/over pipe back..


Funny thing is about an hour after posting, i got a ticket for my exhaust lol

I'll be posting a video tomorrow

it's only raspy when i hit the gas or drive in high rpms 3.5-4

I ordered the cat for the header,

the only problem now, it makes a tracktor noise when i accelerate like a fluttering noise, sounds like something in the front.

flutter noise at low rpm is just how the engine sounds. I know the sound. The raspy can be easily fixed with just a resonator or put back the two with magnaflow ones. You in ontario?

It could be the engine, or an exhaust leak.

I brought the car to two garages and they said no exhaust leak but it sounds like a flutter super annoying. Magnaflow ones are in , it's because i'm catless no cats.
Flutter noise at low RPM, never heard it before until i put the catless headers + overpipe + front pipe catless


I'm in montreal

Check the frame where the overpipe crosses. The first 2 times I had the header installed it was fine, but the third time it wasn't hung properly and rubbed the frame. At higher rpm the sound of the engine would mask it, but it was audible at lower rpm, and when I would turn at speed.

Without cats it'll still be raspy with a turbo.... I was full catless invidia q300 on my wrx and I loved how it sounded but it was loud

It was pulled further away from the frame already, it makes like a nasty ffffff ffffff tracktor noise, its weird. only at low RPMs, i'm thinking it could be because im catless in videos you dont hear it but in person you do.

Hmm, starting to get some cats then lol

if you have an exhaust leak you should be able to see it by inspecting all the gasket locations with a flashlight, all around the ports / joints. You will see black soot. You have to really look for it, not just half ass it. I suspect the shops you had look at it may have just glanced at it or put it on the lift and ran it at idle.

Leak or hitting are most likely as others have said.

Catted/resonated front pipe will help a lot, and the cat in the header will also help. The resonator in the Magnaflow midpipe is rather short. A longer one like in the Perrin/OEM resonated catback will likely get rid of most if not all the rasp.