[chadb21]

Awe axelback with 18" vibrant resonator and the damn rasp is still there. All the n55s with catless dps and axelback sound amazing online. Is it safe to assume any catless dp will create some rasp? Or is there a better catless dp with more engineering that would prevent rasp?

[yoon_209]

might be the vibrant resonator

[chadb21]

Originally Posted by yoon_209

might be the vibrant resonator

No I put that on because the rasp was even worse without it. Now I still have some rasp but lost the loud gnarly sound I liked😑.

[chadb21]

I've concluded. Anyone looking to buy a catless dp with an aftermarket catback will have to endure some rasp. Just wish there was more info regarding this. I'm going to be in the market for a high flow downpipe now.

[Gospeedracer]

I used a 21-24"? Resonator on my old turbo civic and it killed all the rasp. Sounded respectable afterwards. I'd give a larger resonator a try before accepting it as is.

[perryo91]

Originally Posted by chadb21

I've concluded. Anyone looking to buy a catless dp with an aftermarket catback will have to endure some rasp. Just wish these manufacturers would tell us. I'm going to be in the market for a high flow downpipe now.

I think its the combo of the resonator and awe axleback. Ive heard plenty of mpe/catless Dp and dinan/catless dp in person and there was very slight rasp and only in a short range of high rpms... we're not talking rasp like an e46 m3, but the tone changes. You gotta expect it to change when youre removing all that material.

So it could just be the axle back itself.

[chadb21]

Originally Posted by perryo91

I think its the combo of the resonator and awe axleback. Ive heard plenty of mpe/catless Dp and dinan/catless dp in person and there was very slight rasp and only in a short range of high rpms... we're not talking rasp like an e46 m3, but the tone changes. You gotta expect it to change when youre removing all that material.

So it could just be the axle back itself.

Ya it's a very short range but the sound catless vs catted will never be as good. My AWE axelback sounded mean with the stock dp. Now just so so even with the resonator. So sad😔. If doing a catless dp stick with stock exhaust people. You won't regret it. These aftermarket catbacks just sound like shit with a catless dp and I wish there were more people speaking up about it. Very dissapointing and kind of misleading on the part of these companies promoting catless downpipes in combo with their catbacks.

[Mr. Tasty]

Originally Posted by chadb21

Ya it's a very short range but the sound catless vs catted will never be as good. My AWE axelback sounded mean with the stock dp. Now just so so even with the resonator. So sad��. If doing a catless dp stick with stock exhaust people. You won't regret it. These aftermarket catbacks just sound like shit with a catless dp and I wish there were more people speaking up about it. Very dissapointing and kind of misleading on the part of these companies promoting catless downpipes in combo with their catbacks.

Catless downpipe and stock catback is widely renowned as being the best sounding exhaust setup, period. It is a well known fact on the forums.

Don't bash companies for trying to sell products, it's what they do.

[yoon_209]

Originally Posted by Mr. Tasty

Catless downpipe and stock catback is widely renowned as being the best sounding exhaust setup, period. It is a well known fact on the forums.

Don't bash companies for trying to sell products, it's what they do.

catless with stock is nice but the volume isnt quite there

i have mpe with catless and its perfect

quiet on idle and cruise and sounds amazing on WOT

[yoon_209]

Originally Posted by chadb21

Ya it's a very short range but the sound catless vs catted will never be as good. My AWE axelback sounded mean with the stock dp. Now just so so even with the resonator. So sad��. If doing a catless dp stick with stock exhaust people. You won't regret it. These aftermarket catbacks just sound like shit with a catless dp and I wish there were more people speaking up about it. Very dissapointing and kind of misleading on the part of these companies promoting catless downpipes in combo with their catbacks.

I'm pretty sure that when all these companies created their aftermarket mufflers/catback systems, the sound and design are based off a stock cat exhaust.

Yes, one would expect an exhaust to sound better due to catless but thats not always the case since sound is so subjective and makes sense as to why the sound is just not the same or worse in your case.

idk about you but based on my research i have not seen any exhaust company promote a catless setup with their exhausts. third party vendors yes, but not the respective companies themselves.

[sirvanny]

I have a meisterschaft evc with a Er catless downpipe & my car sounds amazing lol
I love it. The burbles and growls. Do you have a vid of your car?

[chadb21]

It sounds great minus the rasp haha. After doing more research I found a few members on here that said they still had a little rasp even with the stock catback.

[f32ftw]

I also have the AWE axleback and midpipe with the VSRF downpipe. The downpipe ruined my exhaust note. It's overly raspy, too loud and there's so much drone. I'm not sure if a catted downpipe would help. I'm still trying to figure out what to do.

[dr.roro]

I think if you're going catless, it's best to keep the stock midpipe/resonator.
Catless + no resonator = drone.

[jv004]

I have a catted DP and the dinan exhaust. Not overly loud, but it did get louder and sounded like crap one weekend. Turned out my CAI coupler got loose but never gave me an error, guess just a boost leak and bad exhaust sound,re tightening all that and back to normal awesome sound. Maybe check your fittings make sure all is tight.

[BearF32]

Is this a custom mid pipe? Try moving the resonator closer the engine. That should eliminate some rasp

[Chicken_Joe]

Originally Posted by chadb21

Ya it's a very short range but the sound catless vs catted will never be as good. My AWE axelback sounded mean with the stock dp. Now just so so even with the resonator. So sad. If doing a catless dp stick with stock exhaust people. You won't regret it. These aftermarket catbacks just sound like shit with a catless dp and I wish there were more people speaking up about it. Very dissapointing and kind of misleading on the part of these companies promoting catless downpipes in combo with their catbacks.

That's not really true. My exhaust isn't that raspy. I think it has rasp but not until you get into the high Rpms

[jh_f30]

Originally Posted by chadb21

Ya it's a very short range but the sound catless vs catted will never be as good. My AWE axelback sounded mean with the stock dp. Now just so so even with the resonator. So sad😔. If doing a catless dp stick with stock exhaust people. You won't regret it. These aftermarket catbacks just sound like shit with a catless dp and I wish there were more people speaking up about it. Very dissapointing and kind of misleading on the part of these companies promoting catless downpipes in combo with their catbacks.

Sucks that you're having issues with your setup, but there are plenty of people running catless dp and aftermarket exhaust with no problems. I'm running a VRSF catless dp, stock mid, and Remus axle back. No issues with rasp. I'm sure you're just voicing your frustrations, but over-generalization of the entire market based on your individual setup isn't necessarily fair or accurate. In any case, hope you're able to get it sorted out. GL!

[mike@x-ph.com]

Downpipe on its own does not cause any noticeable rasp