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jalexquijano

Deceleration popping at exhaust with new MSA Premium exhaust

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Jalex, last time I'm going to ask, have you gone to other z web sites to see if this is normal. The other day, a new z,went by me on the road and I can tell it had an aftermarket muffler, and I heard it popping.

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some say its normal, other say i should have an exhaust leak somewhere and i should also use PERMATEX ULTRA COPPER RTV together with the gaskets.

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Maybe u should put the old exhaust back and see. I don't think you will get an answer u want to hear. A lot of times, you have yo diagnose yourself.

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some say its normal, other say i should have an exhaust leak somewhere and i should also use PERMATEX ULTRA COPPER RTV together with the gaskets.

It's fairly easy to find an exhaust leak besides the visual....have someone cover the exhaust hole while you get under and listen for the leak....

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It's fairly easy to find an exhaust leak besides the visual....have someone cover the exhaust hole while you get under and listen for the leak....

You can poor watermelon kool Aid down the carb and look for pink smoke leaks too

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i put a cherry bomb straight through muffler on my wagon.  then up jetted the 32/36.  thing popped all the time.  it's ok. it's normal.

 

it was rad.

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Jalex, u checked ur plugs, make sure u are not running too lean.

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some say its normal, other say i should have an exhaust leak somewhere and i should also use PERMATEX ULTRA COPPER RTV together with the gaskets.

 

You know, I think to get past this you should replace all the gaskets and use whatever sealer you choose. Seems like this is the only thing that will satisfy you. Come back and let us know how well this worked.

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Found a leak at the manifold to downpipe section. Ill have to remove the downpipe, clean the surface and install a new gasket

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Aaaaaand, 5 paged and 600 replies later

......,......

 

 

 

 

I told you so.

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Welcome to Ratsun.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fuck off.

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Simple diagnostics turned into another typical multi-paged debate.    :rofl:

The "towel plugging the tailpipe" trick apparently worked.  

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Well what the mechanic did was to put a garde hose and listen to the leak. I hope the shop that installed the msa premium exhaust did not damaged any of the studs in tha manifold. I did notice that when removing the stock downpipebhe had to use the solder gun to hear that area as the nuts did not turn.

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oh crap....at the same time, we don't know if that's the culprit that cause the popping noise, nez pas?

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.

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More mindless debate...  Please report back after fixing the exhaust leak Jalex.  

after having your exhaust leak fixed since you dont seem to be the mechanic as was implied 

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Mechanic changed the manifold to downpipe gasket. Deceleration popping at tailpipe still present. What a pitty!!! I guess the only way is to revert to the original stock exhaust system that had a resonator and normal muffler

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Just replace the muffler. Pipes are pipes. 

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the MSA kit brings a turbo muffler. The one i had was a dynomax muffler but had a resonator in the middle of the pipe.

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Well you should be able to cut out a space for the resonator. If you look, the resonator is straight through pipe. You could try adding the resonator in line and see if that tones the popping down. Finally you could put the dynomax back on.

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dynomax are great mufflers turbo mufflers suck 

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