Can an NA FA20 produce exhaust burble/pop?

[FR-Slide]

Sorry if the title is kinda convoluted, here's the background and the question:

I want to keep the car NA (for now), and am looking to upgrade the exhaust. Maybe not all at once, but headers + full exhaust is definitely in the final plan. I compression brake as much as possible, and coming from my B6 S4 (4.2 V8), I really miss the vocal feedback that I get when downshift coasting. Obviously, a flat-4 won't give the same bark and pop as a big catless v8, but I am looking for something similar.

I'd like to pick up a UEL eventually, but first step is going to be a catback and maybe front/overpipe combo. As this is my DD, I'd like to keep it a little civilized/low-drone, but I didn't buy this car to blend into the background and don't mind some noise under load.

Is there a good option for catback that gives the sound I'm after? Can I keep a cat/cats, or will that pretty much kill the effect on this platform? Trying to avoid a CEL, as I don't mind tuning, but didn't want to get into that yet (though I DO want to get rid of the torque dip...hoping headers can solve that problem a bit).

I've tried the , but "exhaust pop" pulls up everything from pop-rivets to soda pop Just hoping that someone else knows what I'm talking about and can steer me into a few brands to look at, or even let me know if what I'm afer exists.

Thanks for any help.

[topazsparrow]

You could tune it in. A Catless header would certainly amplify it.

I get that it sounds cool, but it's not traditionally a good thing. It's a relic of days gone by with no variable valve timing and running rich.

[OrbitalEllipses]

Yes, you will get afterfire if you replace the exhaust components downstream of the header.

[Diode Dynamics]

You'd have to have a free flowing exhaust

Headers + catless exhaust

Nick C.

[DarkSunrise]

A non-resonated midpipe helps. I hear a little more burble/pop with my Perrin non-resonated CBE. Pretty sure the more resonators and cats you remove from the exhaust path, the clearer it should be.

Here was a thread about it a while back.

http://www.ft86club.com/forums/showthread.php?p=807748

[brz_star21]

If the "boxer rumble" you're wanting takes priority over looks of the muffler/tailpipes than you should invest in the UEL first. The rumble is mainly due to the unequal length of 2 of the 4 exhaust runners and the different exhaust gas pulse it produces. Personally not my cup of tea.

You'll find a bit more threads like this. Try searching for "boxer rumble", "burble", or similar.

[raul]

I have the nameless downpipe and axleback and I get that sound pretty often when I let off the throttle quickly.

[FR-Slide]

Thanks for all the replies so far. I figured the basics would remain true (less resonators, cats, restrictions = clearer path = more sound and feedback). Glad to know it's an option.

Originally Posted by DarkSunrise

A non-resonated midpipe helps. I hear a little more burble/pop with my Perrin non-resonated CBE. Pretty sure the more resonators and cats you remove from the exhaust path, the clearer it should be.

Here was a thread about it a while back.

http://www.ft86club.com/forums/showthread.php?p=807748

Sweet, I'm at work but will have to check the video's out at home. Thanks!

Originally Posted by brz_star21

If the "boxer rumble" you're wanting takes priority over looks of the muffler/tailpipes than you should invest in the UEL first. The rumble is mainly due to the unequal length of 2 of the 4 exhaust runners and the different exhaust gas pulse it produces. Personally not my cup of tea.

You'll find a bit more threads like this. Try searching for "boxer rumble", "burble", or similar.

Thanks, I get that the UEL gives the "Subie rumble", which is a big part of what's drawing me to that type over the EL, but what I was more curious about specifically was crackle/pop on overrun and burble on compression braking.

Originally Posted by raul

I have the nameless downpipe and axleback and I get that sound pretty often when I let off the throttle quickly.

Good deal, I know there are plently of nameless clips that I can check out to see if this will fit the bill.

Thanks all! Keep any other feedback coming :happy0180:

[raul]

Originally Posted by FR-Slide

Good deal, I know there are plently of nameless clips that I can check out to see if this will fit the bill.

Thanks all! Keep any other feedback coming :happy0180:

I may be able to replicate it for you.

[OrbitalEllipses]

Originally Posted by raul

I have the nameless downpipe and axleback and I get that sound pretty often when I let off the throttle quickly.

Samesies, even with a cat I get some pops.

[SmsAlSuwaidi]

My car pops like crazy with a straight catback ( Buddy club spec 2) + a test pipe, and the main cause is that my ecu is adjusting and running a bit rich

[overlookedx]

I know this makes absolutely no sense, but I get tons more pops/burble with my Nameless muffler delete than I ever did with my non-resonated Perrin catback. I thoroughly enjoy downshifts now, especially while on track.

[DarkSunrise]

Originally Posted by overlookedx

I know this makes absolutely no sense, but I get tons more pops/burble with my Nameless muffler delete than I ever did with my non-resonated Perrin catback. I thoroughly enjoy downshifts now, especially while on track.

I can believe that. The Perrin muffler is probably more effective at quieting pops/burbles than the stock midpipe resonator (+ muffler delete).

[Hardrock4445]

I get it with Catless header, stock over front and mid pipe with resonated muffler delete and I love it.