Random tech cat 2.5" inlet to 2.25" manifold
08-23-2015
#1
Registered!!
Thread Starter
Join Date: Aug 2015
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
Rep Power: 0 
Random tech cat 2.5" inlet to 2.25" manifold
Hoping you guys can help me out with this one. I bought a Random Technology cat for my '03 EX. It came with a 2.5" inlet & 2.5" gasket, but my manifold has a 2.25" outlet. Anybody ran across this before? What's the best way to adapt? Thanks!!
08-24-2015
#3
Prelude Owner
iTrader: (7)
Re: Random tech cat 2.5" inlet to 2.25" manifold
Did you verify the part number from Random Techs website matches your vehicle?
The flanges probably still fit together. No harm in going from a smaller diameter to a larger.
The flanges probably still fit together. No harm in going from a smaller diameter to a larger.
08-25-2015
#4
Administrator
Hey! Look At Me!! I'm a Supporting Member!!
Administrator
iTrader: (22)
Join Date: Aug 2003
Location: Las Vegas, NV
Age: 39
Posts: 21,462
Received 1,156 Likes
on
806 Posts
Rep Power: 486 
Re: Random tech cat 2.5" inlet to 2.25" manifold
I replied to your profile message you left me. The flared inlet on the downpipe should mate properly with the doughnut gasket on the exhaust mani
08-25-2015
#5
Registered!!
Thread Starter
Join Date: Aug 2015
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
Rep Power: 0 Re: Random tech cat 2.5" inlet to 2.25" manifold
08-25-2015
#6
Administrator
Hey! Look At Me!! I'm a Supporting Member!!
Administrator
iTrader: (22)
Join Date: Aug 2003
Location: Las Vegas, NV
Age: 39
Posts: 21,462
Received 1,156 Likes
on
806 Posts
Rep Power: 486 Re: Random tech cat 2.5" inlet to 2.25" manifold
I just used whatever was included in the random tech install kit... 
http://www.dezod.com/random-technolo.../i-244103.aspx
Comes with doughnut gasket, downpipe to midpipe gasket, hardware for both inlet and outlet connections.
http://www.dezod.com/random-technolo.../i-244103.aspx
Comes with doughnut gasket, downpipe to midpipe gasket, hardware for both inlet and outlet connections.
08-26-2015
#7
Registered!!
Thread Starter
Join Date: Aug 2015
Posts: 14
Likes: 0
Received 0 Likes
on
0 Posts
Rep Power: 0 Re: Random tech cat 2.5" inlet to 2.25" manifold
I just used whatever was included in the random tech install kit...
http://www.dezod.com/random-technolo.../i-244103.aspx
Comes with doughnut gasket, downpipe to midpipe gasket, hardware for both inlet and outlet connections.
http://www.dezod.com/random-technolo.../i-244103.aspx
Comes with doughnut gasket, downpipe to midpipe gasket, hardware for both inlet and outlet connections.
Thread
Thread Starter
Honda Civic Forum
Replies
Last Post
PierrePierre
6th Generation Civic 1996 - 2000
1
08-12-2015 02:42 PM
adamdrives
Mechanical Problems/Vehicle Issues and Fix-it Forum
15
08-08-2015 08:53 PM
Dangerousjordan
Mechanical Problems/Vehicle Issues and Fix-it Forum
6
07-30-2015 11:19 AM
