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Old 02-26-2012, 01:22 AM   #1
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I just put on some BBK CAT deletes. And with my Pypes axle backs, the straight pipe type, the car is just stupid loud. I have an x-pipe on the way so I'm guessing it's gonna get even louder. Does anyone on here have an off road x-pipe with factory mufflers? Heard some on you tube but can't really get a feel for how loud they are. Loud is fine but when I get over 2k rpms it's crazy. I'm not really wanting to go back to factory mufflers. But if I can't deal with the the sound I'll stick with the cat deletes and x-pipe for power gains over the muffler. And are there adjustments that have to be made to the tune for the axle backs? Can I just swap them in and out to see how they both sound without messing with my tune. Ty

2011 Grabber Blue GT
Boss intake, BBK o/r x-pipe, Bama tune, Pypes axle backs, AM short throw shifter, AEM CAI
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Old 02-26-2012, 01:31 AM   #2
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Re: Axlebacks?

No tune needed for axelbacks so you will be fine putting the stockers back on.

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Old 02-26-2012, 01:53 AM   #3
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The xpipe shouldn't be any louder.. It'll change the sound and make it raspier.. What made it loud was losing the cats.. And no tune does not affect mufflers..
2011 5.0
Bama 93 race tune, bbk o/r xpipe, gt500 axle backs, frpp k-springs, steeda rear lca's, 3d carbon 3d500 wing, boss/cs front fascia w boss brake cooling kit, plenty more...
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Old 02-26-2012, 07:43 PM   #4
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I have the xpipe with resonator delete and muffler delete and have found the car doesn't need to be any louder. I had the cat delete but I always smelled gas so the sound and whatever performance wasn't worth it for me so I put a set high flow cats and I think that is perfect.
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Old 02-26-2012, 11:06 PM   #5
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A lot of people use GT500 mufflers to tone it down after a cat delete.
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