well i got a 3 inch down pipe from hahns. I was just wondering what to do with the cat. Does anyone know of a cat that will bolt up to the flanges? Ive got a lot of 3 inch mandrel bends for the cat back. If i cant find a high flow cat for it with out modifying the flanges i was going to just run 3 inches all the way back with no cat. But i dont know if there is any cons to doing that other than what, boost creep?

"status as of now " busted420a powered by: 25g, crane cams valve springs retainers, ported head, ported manifold, oversize valves, 60mm tb, je pistions eagle rods, total seal rings,afx pulley, aem cam gears, spearco fmic, turbo xs bov, msd coil and wires, craptech

Get a 3" Stainless Steel 2G turbo (testpipe)Catalytic Convertor off of Ebay for $30 and it should bolt up from what I've heard..


Star Stage II,Vecco SS heatshield,OBX intake,OBX fuelrail,MSD coil & wires,Epac voltage sys.,Hyperground sys.,Eagle rods,JE pistons,ARP studs,meling oil pump(Ceramic coated DP,wastegate tube,Manifold & turbo housing)

hahn sells 3" cat's as well

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http://www.dsmregistry.com/detail.php?carid=1133
*form follows function*

You can get a 3 inch cat for less than 100.00. I dont even want to know what Hahn rapes you for one. I got mine from RRE for 99.00 and welded 3" flanges to it to fit my setup. I know others have gotten a 3" for a lot less.

Terry

if this is the HRC vband 3inch downpipe, a 2-bolt flange will not work. The HRC VBand downpipe incorporates a 3bolt 3inch header style flange. You either need to get his downpipe specific cat or make one yourself.

hahns told me all they sold was a test pipe. which is fine but it wont bolt up. What about running with no cat? We dont have emissions here in indiana/michigan.

"status as of now " busted420a powered by: 25g, crane cams valve springs retainers, ported head, ported manifold, oversize valves, 60mm tb, je pistions eagle rods, total seal rings,afx pulley, aem cam gears, spearco fmic, turbo xs bov, msd coil and wires, craptech

-Chris
1999 Eclipse T-GS


2.4 Project is Officially underway

advance auto sells a 3" cat for ~$70. I believe its a high flow too. But why oh why would you run a cat on a beautiful 3" setup??

i just found a test pipe for an evo8 with a three bolt flange on the front and a two bolt flange on the rear so thatll work out great ill just have to order a two bolt flange and weld it to the 3 inch pipe i have for the cat back. Thanks for you help with this question i appreciate it.

"status as of now " busted420a powered by: 25g, crane cams valve springs retainers, ported head, ported manifold, oversize valves, 60mm tb, je pistions eagle rods, total seal rings,afx pulley, aem cam gears, spearco fmic, turbo xs bov, msd coil and wires, craptech

If you can, post up a pic of that evo* cat, I'd like to see it.

1999 Eclipse GST 4G63