rudefyet Posted January 7, 2005 Report Share Posted January 7, 2005 anyone have any experience with these i'm wondering what company makes the best flowing one Summit racing has some Dynatech cats for $150....but that's the only one's i've really seen I've already choosen a muffler, so I won't get into that Quote Link to comment Share on other sites More sharing options...
89GPSE Posted January 7, 2005 Report Share Posted January 7, 2005 I have a High Flow cat on my car. And I did mine with the adittion of a whole new 2.5 mandrel bent system, so I can't say that the cat did anything alone. But after reading up on things I have found that a High flow is not worth it unless you buy the most $$$ one around. I suggest pipe-ing out the one you have now if you want to see results. Also do not wory about Back Compression our stock headers LOL and down pipe do more that enough. -Justin Quote Link to comment Share on other sites More sharing options...
mfewtrail Posted January 7, 2005 Report Share Posted January 7, 2005 Get a carsound "high flow" cat(made by magnaflow, usually about $40-60 on ebay I think), that's what's on my TGP, and it seems to do alright. I'll probably put one on my GTP as well when I do the exhaust just in case we start having emissions here(none, so I don't need a cat at the moment, probably won't for a few years where my cars are registered 8) ). Quote Link to comment Share on other sites More sharing options...
rudefyet Posted January 7, 2005 Author Report Share Posted January 7, 2005 i've got an idea what i'm gonna do now...i wanna keep the car legal just in case i have to move to a place where they do check on a side note though...what's the stock pipe size 2 1/4 or 2 1/2? Quote Link to comment Share on other sites More sharing options...
Robby1870 Posted January 7, 2005 Report Share Posted January 7, 2005 i've got an idea what i'm gonna do now...i wanna keep the car legal just in case i have to move to a place where they do check on a side note though...what's the stock pipe size 2 1/4 or 2 1/2? 2 1/4 Quote Link to comment Share on other sites More sharing options...
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