What about straight thru mufflers

[YOUTUBE]http://www.youtube.com/watch?v=ukz-RFDQJ0k&feature=mh_lolz&list=LLMdeVMqfzuZ4[/YOUTUBE]

[YOUTUBE]http://www.youtube.com/watch?v=l9ShruWBFm4&feature=autoplay&list=LLMdeVMqfzuZ4&index=2&playnext=1[/YOUTUBE]
 
My experience..

Glaspacks are not good on a turbo motor David. This is a much better option.

MagnaFlow 10416 - MagnaFlow Performance Mufflers - Overview - SummitRacing.com

More money but you will be happier if you go this way. Done more research on flow after the turbo and before the turbo than you want to know.:biggrin:

I had a pair of XXX muffs w/ 2 1/2" tps... AT 80mph, folks thot they'd been passed by a P-51!:eek: Cool sound, but way to much drone. Changed to Dynomax. GTG.

As for power, my dyno tests showed only +3 RWHP diff with the dump open..
 
I just took off a pitbull muffler...the drone was driving me nuts. I had the shop cut it off and put a magnaflow straight-thru muffler on and it's great...a little rumble but zero drone..and now I can hear my turbo spool up.
I don't notice any difference in performance...I also have a cutout if more flow is needed.
 
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