Headers for the Perrin 3"

[PoWn3d_0704]

Hey guys. I've been hearing rumors that the Perrin 3" may drone/rasp really bad with headers... I was wondering if anyone actually has headers on the 3" exhaust and could confirm (or deny).

I've got the Resonated 3" with the 3" catted front pipe. Trying to give the car a little growl without making her too loud. I'm also playing with the idea of tuning her in a couple weeks, and figured i may as well do some headers while I'm there.

Would going EL Catted headers keep the car quieter while getting rid of a lot of the torque dip?

Being in the PNW, I'm assuming PRE is a good bet to talk to for tuning. Taking advice there too.

[Malt]

Originally Posted by PoWn3d_0704

Hey guys. I've been hearing rumors that the Perrin 3" may drone/rasp really bad with headers... I was wondering if anyone actually has headers on the 3" exhaust and could confirm (or deny).

I've got the Resonated 3" with the 3" catted front pipe. Trying to give the car a little growl without making her too loud. I'm also playing with the idea of tuning her in a couple weeks, and figured i may as well do some headers while I'm there.

Would going EL Catted headers keep the car quieter while getting rid of a lot of the torque dip?

Being in the PNW, I'm assuming PRE is a good bet to talk to for tuning. Taking advice there too.

Its loud with borla UEL, but I plugged up the sound tube and that was a surprising reduction in sound. Still loud but livable. As for drone, I wouldn't call it that, just pretty loud at WOT. I've also heard that drone can be caused by using cheap or stock exhaust hangers. Not sure if there is any validity to that but getting yourself a nice set of perrin or kartboy exhaust hangers might not be a bad idea. Also, a turbo kit will quiet it right down!

I've read that the majority of the gains with going with headers is going catless, so I have no idea if a catted header will get rid of the torque dip or not, but my guess is no.

You will be surprised at how much a difference a header and tune makes though, the car is significantly faster on an E85 tune with headers and exhaust.

[FR-S Matt]

Originally Posted by PoWn3d_0704

Hey guys. I've been hearing rumors that the Perrin 3" may drone/rasp really bad with headers... I was wondering if anyone actually has headers on the 3" exhaust and could confirm (or deny).

I've got the Resonated 3" with the 3" catted front pipe. Trying to give the car a little growl without making her too loud. I'm also playing with the idea of tuning her in a couple weeks, and figured i may as well do some headers while I'm there.

Would going EL Catted headers keep the car quieter while getting rid of a lot of the torque dip?

Being in the PNW, I'm assuming PRE is a good bet to talk to for tuning. Taking advice there too.

Yes, raspy. There's a video of a full 3" Perrin system resonated with a Borla UEL. The size of the piping is the cause of the rasp on N/A.

[DAN_BRZ]

he didnt ask about a uel, the borla header is loud period. im in the same boat as the op, im running the same exhaust setup, and dont want crazy rasp/drone. the three headers on my list are hks el, jdl uel, and nameless. considering going with a different catback option if the 3" is just too loud.

[PoWn3d_0704]

Originally Posted by DAN_BRZ

he didnt ask about a uel, the borla header is loud period. im in the same boat as the op, im running the same exhaust setup, and dont want crazy rasp/drone. the three headers on my list are hks el, jdl uel, and nameless. considering going with a different catback option if the 3" is just too loud.

Yeah, thats my problem. I'm considering the HKS as well, but like someone said, a turbo kit would quiet it right down. So thats an option for me. But with a turbo kit I would not be using HKS headers anyways, would I? Nor my Perrin Intake.

[FR-S Matt]

Originally Posted by PoWn3d_0704

Yeah, thats my problem. I'm considering the HKS as well, but like someone said, a turbo kit would quiet it right down. So thats an option for me. But with a turbo kit I would not be using HKS headers anyways, would I? More my Perrin Intake.

No, you wouldn't. The turbo changes the manifold and the downpipe most likely to fit the kit.

I've come to the conclusion that without lots of resonators and sound deadening like the stock header has, rasp is hard to avoid on 3". I really thought my 3" Nameless setup would have been free of this, but it just didn't happen. It should be used for a turbo only setup.

[ramiram1984]

Originally Posted by Malt

Its loud with borla UEL, but I plugged up the sound tube and that was a surprising reduction in sound. Still loud but livable. As for drone, I wouldn't call it that, just pretty loud at WOT. I've also heard that drone can be caused by using cheap or stock exhaust hangers. Not sure if there is any validity to that but getting yourself a nice set of perrin or kartboy exhaust hangers might not be a bad idea. Also, a turbo kit will quiet it right down!

I've read that the majority of the gains with going with headers is going catless, so I have no idea if a catted header will get rid of the torque dip or not, but my guess is no.

You will be surprised at how much a difference a header and tune makes though, the car is significantly faster on an E85 tune with headers and exhaust.

@John92

[John92]

[ame]http://youtu.be/asKY9XXa0z8[/ame]

unresonated is in the second video.

[ame]http://youtu.be/MkdkAUdDHds[/ame]

[FR-S Matt]

Need to go 2.5". That's how mine sounds even with resonators. 3" is nuts.

[PoWn3d_0704]

Unless turbo? I can just say f##k it and grab a turbo kit. Probably have PRE do it in Portland. Something low boost that is reliable, hopefully.

[FR-S Matt]

Originally Posted by PoWn3d_0704

Unless turbo? I can just say f##k it and grab a turbo kit. Probably have PRE do it in Portland. Something low boost that is reliable, hopefully.

Pretty much. Take my warning, 3" is intended for FI. The sound is too much for a DD and the rasp is what kills it for me the most.

[PoWn3d_0704]

Like I said, I'm already on the full Perrin 3". Just header/OP. I love the sound it makes, really. Sounds like I'll go with turbo next instead of keeping it NA with headers.

[John92]

My car is a DD honestly it's not loud enough there is no rasp or drone. If you have your back seat up you will barely hear it.