i have an espelier cat back and DC header. the piping on the cat back's 60mm --> 2.36in. but all the high flow cats are either 2.25in or 2.5in in/out...i'm confused as to which size would fit. thanks

 

I would suggest going with the 2.25" cat. Keep in mind that cats are measured using inner diameter, while exhausts are measured using outer diameter, so a 2.25" cat is approximately 60mm (2.36") OD, depending upon the tubing thickness.

 

hey get a random techonolgy cat...there a hi flow cat, w/3inch in/out.....work awesome........i had one...bought it with it already on the car...after a yr, it rattled, so, me didnt know much on cats, went to the muffler store to pick up a cat, and they gave me a 2.25 cat....ok?...lost my power...i checked my records, and they took off a random cat that was on the car........so they deff. work..im going to replace, my *new* cat, w/ a new random..cuz it took my power.......they r 270 tho.....but its well worth it, cuz they deff. work....they should work w/ur setup...i have dc headers 4-2-1..and rsr cat back ..........

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Padawan &raquo;</TD></TR><TR><TD CLASS="quote">I would suggest going with the 2.25" cat. Keep in mind that cats are measured using inner diameter, while exhausts are measured using outer diameter, so a 2.25" cat is approximately 60mm (2.36") OD, depending upon the tubing thickness. </TD></TR></TABLE>

thanks

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by acura_9485 &raquo;</TD></TR><TR><TD CLASS="quote">hey get a random techonolgy cat...there a hi flow cat, w/3inch in/out.....work awesome........i had one...bought it with it already on the car...after a yr, it rattled, so, me didnt know much on cats, went to the muffler store to pick up a cat, and they gave me a 2.25 cat....ok?...lost my power...i checked my records, and they took off a random cat that was on the car........so they deff. work..im going to replace, my *new* cat, w/ a new random..cuz it took my power.......they r 270 tho.....but its well worth it, cuz they deff. work....they should work w/ur setup...i have dc headers 4-2-1..and rsr cat back ..........</TD></TR></TABLE>

so the 3' fit?

 

Virtually any size will fit if the correct flanges are welded to it.

Contact Dave at SMSP. He has had flow-testing done on a number of different cats, and he continually revises his offerings to provide the best in terms of durability and flow rate.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Padawan &raquo;</TD></TR><TR><TD CLASS="quote">Virtually any size will fit if the correct flanges are welded to it.

Contact Dave at SMSP. He has had flow-testing done on a number of different cats, and he continually revises his offerings to provide the best in terms of durability and flow rate.</TD></TR></TABLE>

do you have a link for SMSP?

 

http://SMS-Products.com/

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Padawan &raquo;</TD></TR><TR><TD CLASS="quote">
http://SMS-Products.com/</TD></TR></TABLE>

thanks