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i put a glass pack on my old chevy and i had it reversed it whisteled bad and then i turned it around and it sounded different. but that was 20 years ago.
ok glass packs have rased fins in side to quite it down so in turn means they will only flow one way enles you want the strait pipe sound whitch if that was it why wast your monney
No not really its a strait pipe with holes, but there actually is a different sound when they're backwards. The little holes don't work as well backwards, so basically its a strait pipe. But i wouldn't worry about it to much not really that much of a difference.
1978 F150 Custom 4x4
300-6 w/ 4.11's
3spd + Chevy pulling gear
BFGoods 32x11.50s
Chevy symbols in the grill
Dodge symbols in the muffler
Black is oil
Red is tranny
Green is antifreeze
So what are the yellow puddles under Chevys?
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.