Anyone know where I can order a high flow direct fit cat for a Prelude SH?

 

I just ordered one from Random Technology for a 4th gen Lude. All I can say is direct fit my A@*. The outlet flange was much smaller than the stock flange and the slotted holes weren't exactly lined up. I had to cut the stock flange off and weld it on to the new Random Technology cat. I ended up spending more money trying to go direct fit. Be cautious with Random Technology.

 

The whole reason its called a "High-Flow" Cat is because the inlet/outlet are larger. ( for most N/A setups people choose 2.5inch )

 

i bought a rt one and i regret getting it. its the same size as the stock cat and its cost $200+. i would just buy a 2.5 one from cat co and get it welded. it would be alot cheaper and better flow.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 98TypeSH &raquo;</TD></TR><TR><TD CLASS="quote">The whole reason its called a "High-Flow" Cat is because the inlet/outlet are larger. ( for most N/A setups people choose 2.5inch )</TD></TR></TABLE>

The flange size has nothing to do with the diameter of the outlet and inlet. You can fabricate a flange of equal size no matter what the diameter of the pipe is. The increase from the stock pipe size to the hi-flow pipe size is not significant enough to say that the flange size between the two should be different.

 

Therefore the fabrication of the ONE that I purchased basically was not good.