Cat sizing
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Kung Fu Hustler
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Ok guys. Here is the question. I have a Apexi-1 Catback with 60mm piping and I need to get a Cat with a 2.5 inch Inlet and a a 2.5 inch outlet. 60mm is roughly 2.36 inches which means that my Current catback falls short by approx 3.5mm which isnt that much. Do you guys think Ill have any problems trying to get it to fit? I dont feel like dumping money on another exhaust.
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JohnWhizz1800:BBBOOOOOOOSSSSSSTTTT! F Mugen
John Whizz1800:Mugen =136 ft lbs
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"The kingdom of heaven lies within the mind, heart and soul, of all men. To realize it we need only to overcome our own selfishness."
Shinmantis:Muuuuuggggeeeeennnn!
JohnWhizz1800:BBBOOOOOOOSSSSSSTTTT! F Mugen
John Whizz1800:Mugen =136 ft lbs
AIM: Shinmantis
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Piece of cake... just dump the cat... use a test pipe that has a 2.5inlet and slowly tapers down to the 60mm you have on the catback exhaust... should still be WAY better than the stock setup you have now. 
Good luck... cant wait till the Demon is ready...
Good luck... cant wait till the Demon is ready...
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I used to have a cat but I found out I was allergic. So one day I just left the door open and it ran away. Life has been much better since then.
Livin' in Seattle
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Originally posted by "Someone"
Originally posted by speed_daemon1
I used to have a cat but I found out I was allergic. So one day I just left the door open and it ran away. Life has been much better since then.
Originally posted by speed_daemon1
I used to have a cat but I found out I was allergic. So one day I just left the door open and it ran away. Life has been much better since then.
Livin' in Seattle
Joined: Nov 2000
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To answer the question though itll be a restriction but as for bolting it up who knows till you try. If the bolt holes match then just slap on the gasket and torque the bolts down. If the holes dont match see if you cant enlarge them enough (on the cat) to allow proper placement.
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Since your exhaust has a 60mm opening and the cat pipe has an ID of 2.5 use a grinder to slightly taper the exhaust flange so the flow is smothed out and also slightly increase flow velocity. If you cant get the bolts to line up you could buy a flange from jcwhitney for $2 and cut and weld it to your exhaust.
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Gyms in Clearwater, St. Pete and Port Richeypm me if you are interested in trying a free class at any of the gyms.
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Originally posted by "Someone"
Originally posted by KJ
Since your exhaust has a 60mm opening and the cat pipe has an ID of 2.5 use a grinder to slightly taper the exhaust flange so the flow is smothed out and also slightly increase flow velocity. If you cant get the bolts to line up you could buy a flange from jcwhitney for $2 and cut and weld it to your exhaust.
Originally posted by KJ
Since your exhaust has a 60mm opening and the cat pipe has an ID of 2.5 use a grinder to slightly taper the exhaust flange so the flow is smothed out and also slightly increase flow velocity. If you cant get the bolts to line up you could buy a flange from jcwhitney for $2 and cut and weld it to your exhaust.
