Fixing my exhaust sound

[Trooper4985]

Finally have the car back together. FRPP Hi Flow CNC heads, 127300 cams, BBK Twin 62 TB, American Racing LT w/ O/R H, CMDP, Steeda UDP, Borla Stingers and tunes from Bama. I can now scare old ladies and make babies cry with the tap of my foot... I might add the FRPP intake manifold, but for now all is good in the world.

Only problem I need to solve is the nasty popping. I have checked Youtube and found SilverBossGT's video and comments stating that he moved from an O/R H to a O/R Prochamber but I can't find any vids of a LT/Prochamber/Borla setup. I loved how the Borla's sounded before I did the Heads/Cams/LTs but am willing to go with a new axleback if need be. Anyone suggestion would be greatly appreciated.

 

[Wicked GT]

Trooper, I really like the sound of the Borla Touring mufflers with long tubes and off road X/H pipes. I had Steeda mufflers on my 2006 and they sounded great before I put on the LT's and X pipe... sounded way to raspy and loud afterwards. I actually went back to the stock mufflers to quite it down.

 

[702GT]

This nasty popping you refer to, I assume, is the 2500-3200 rpm range torque grunt? It's hard to have your cake and eat it too.

I had Pypes LT, Pypes O/R X, and Pypes M-80 MMS. It doesn't get much louder than that without just dumping the exhaust. That rasp/poppy note in the mid-range was only bearable because everything above that was "RACECAR" exhaust note. Yes, I too struck fear in the pacemakers of old folks and gave children something to really cry about. Also lost 2 girlfriends to the phrase "your car is too loud." Such treason is intolerable, and brave words considering we're in the middle of a desert...

Anyway, I aquired a high-flow catted mid-pipe for smog purposes. Running the catted mid-pipe I noticed it didn't cut too much of my sound level down but it cleaned up my mid-range pop. I actually made a few more ft/lbs with the cats too. If a good set of high-flow cats aren't out of the question, I'd give those a shot first. A prochamber is going to change the exhaust note of your mufflers at all rpm. High-flow cats should just dampen the note.

 

[Department Of Boost]

You can tune all of that out. In the motorcycle world it's called lean popping.

My tuner tuned it out of my 2007 to see if he could. I didn't like it so he "turned it back on", Now it sounds like a proper race car again.

IDK what he did though.

 

[skwerl]

Either high flow cats, resonators or a slightly milder muffler such as the Borla Touring and your popping will clear up. I had off road headers and Borla Touring and had some popping. It was also a bit too loud for me. I added resonators in front of the axle and it cleaned the tone up nicely.

 

[808muscle]

Mid mounted resonators totally clean up the tone. I run cams, LTs, off road H, mbrp resonators then borla s types. Sounds really deep and thick. I love it. Best combo I have ever heard IMO on a 3v.

 

[Department Of Boost]

Mine wasn't popping with LT's, X-pipe with straight through Magnaflows dumped at the axle. Then I had mine tuner change the tune back. Now it pops like a sportbike. Zero exhaust changes.

 

[michael.konor]

12" resonators fixed all my drone, popping, and tone problems.

 

[dugstang]

my prochamber cleared everything up. Sounds good with LTs and magnaflow street mufflers, almost too quiet but i like the sleeperness of it.