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Thread: best hi-flow cats?
03-19-2008, 06:57 PM #1
best hi-flow cats?
Whats the best hi-flow cats for the money/cheaper. and headers.
I have a 2000 5.3 with true duals no mufflers out at 65 degree angles. are hiflow cats and headers going to make a sound difference?2000 Silverado, 3" body lift with 2" rear block in rear and torsion bars cranked up front. Westin bull bar, 35" Mickey Thompson Baja ATZ. 2 3/4 true duals no mufflers to 4" stainless tips at 65 degree angle, smoked tailights, led lightbar, black halo headlights.
03-19-2008, 07:04 PM #2
best hi-flo cat id go magnaflow.... I have flowtech shorty headers and they are nice and wont break the bank... you will prob get a little louder and deeper sound with the combination of the two alsoPETE
95 GMC Sierra 2500
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03-20-2008, 10:23 AM #3
Magnaflow is the way to go for cats. Not sure about any specific brand of headers, but I'd just go for the long-tube headers. You'll see much more noticable gains. They also cost more, of course.
2009 GMC Sierra Denali AWD
03-20-2008, 06:16 PM #4
Ive got slp on my 05 gto and i like them havent changed the ones on my truck yet.
03-24-2008, 03:27 PM #5
about how much does a set of magnaflow hiflow-cats cost?
03-24-2008, 04:39 PM #6
The magnaflow cats are about 65 bucks a piece from summit.
2007 GMC Sierra CrewCab 4.8L
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03-26-2008, 11:55 PM #7
Does replacing for hi-flow cats make a big difference, or should one invest in new piping?
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