JBA Exhaust on 05 Mustang sound clip

h0tr0d

New Member
May 21, 2004
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San Diego
jba_05mustangexh.jpg
jba_muffler.jpg
JBA sound clip
Here is a sound clip of JBA's exhaust on an 05 Mustang. The recording isn't very good because it was raining - but you can get the idea. The new cars have a different sound from the earlier modular cars. This system has JBA's 2-1/2" chamber style mufflers
 
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Sounds like it has the "HANGING RPM" problem, too. I like the sound a lot. Have any of you guys that have purchased the '05 already had the hanging RPM's issue? Not that it bothers me (I have had it on them all so far '00, '01, '02, '04) but it sould be nice to see it fixed without having to use a homemade restrictor plate.
 
The thing I dont like is how gradual the acceleration and deceleration of the engine .

Maybe its the "throttle by wire" but it seems there is no "BAM" when the throtle is pressed or depressed, just a gradual rise/fall in RPM.
 
The gradual rev and deceleration of the engine and the hanging rpm are both side effects of the emission controls and the factory engine managment. By design they are working to minimize the emissions of the engine and to keep the engine from being hurt in a "free rev" situation.