Question about mid muffler delete - Dodge Challenger Forum: Challenger & SRT8 Forums
SRT Hellcat 6.2L Supercharged (2015 - ) Would you like the BLACK KEY or the RED KEY?

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post #1 of 1 (permalink) Old 07-02-2018, 08:05 AM Thread Starter
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Question about mid muffler delete

I recently bought a used 6 speed manual 2015 Challenger Hellcat and whoever had it before did a mid-muffler delete. At first I thought the car was stock but was wondering why it popped on decel so much and was so loud when I would get on the gas I couldn’t even hear the supercharger whine. Well I looked up under the car and I saw where the mufflers had been removed and two pipes had been installed. It was a nice clean job, but I was tired of the plain loudness of the car and the constant popping on deceleration that I would get. I had two bottle like mufflers that I had taken off my 2014 manual 5.7L RT Challenger sitting around so I decided to put those on the Hellcat if they would work; well low and behold they worked and I swear the car runs and sound much better! What I noticed also, besides I can really hear the supercharger whine now is that the car seems to have slightly more getty-up and go than it had before. I really think the muffler delete/straight pipes hurt performance. It must be a loss of backpressure thing?

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