Popping sound when I open it up...

OSUTX440 · 11-02-2009, 11:51 PM

Hey guys,
I have Magnaflow A/B and a V3 S/C....I opened it up today and in first gear heard a popping noise from my exhaust, almost like a backfire. Is this normal with my setup?

Thanks

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nineinchnail1024 · 11-03-2009, 01:49 AM

I hope you're not missing. It's probably just a lack of backpressure causing the sound on decel, but I'd get it on a dyno to be sure. Do you still have cats? It shouldn't "pop" from a lack of backpressure if you have cats.

OSUTX440 · 11-03-2009, 09:12 AM

Nine,
Yeah, it was on deceleration, and yes, I still have the cats.

Riptide · 11-03-2009, 10:02 AM

Was the car cold? Mine has done it before but only when it wasn't warmed up.

justin07vert · 11-03-2009, 10:23 AM

I noticed mine had some decel pop the other night when it wasn't warm and in neutral. Have tried again, but I am fairly sure it was just cause it was cold...

nineinchnail1024 · 11-03-2009, 07:50 PM

Quote:

Originally Posted by OSUTX440

Nine,
Yeah, it was on deceleration, and yes, I still have the cats.

If it was only on decel, then you're fine. The other guys bring up a good point, the cats aren't doing their job until they warm up, so if this happens when the car isn't fully warmed up, then it's definitely just the exhaust.

mygt500 · 11-04-2009, 12:14 AM

Quote:

Originally Posted by OSUTX440

Nine,
Yeah, it was on deceleration, and yes, I still have the cats.

popping on decel is normal and can happen

alexstang07 · 11-04-2009, 06:07 AM

yeah i have poping too with my pypes system

OSUTX440 · 11-04-2009, 08:44 PM

Thanks for the responses, guys.