is it true that cats restrict horse power cause i broke mine and it makes this rateling sound but one of the guys i ride with said **** it off and weld a pipe there it will help with horses and you do not need it since you just pasted emissions... what do you all think

 

As far as a HP drain there is a minimal difference. Maybe 5.

However if it is rattling, the small "honeycomb" material inside has broken and it can potentially block your exhaust and cause a ping or other probs.

 

wrong board but ok

to be honest its not worth the power its really small amount that you gain, the hp vs the penalties for removing it is just too severe just replace it

with a medium to large size cat converter you can get a high flowing one on ebay for pretty cheap and have an exhaust shop put it on for 30 bucks usually

 

no why I would get a cat off ebay, get a REAL cat(magnaflow, dynomax, etc) and a cat out flows a muffler so the HP loss will be very low

 

you can get a magna flow or dynomax cat for dirt cheap my brother got a full size for $60 shipped

 

How did you break it?
A common rattling is just the outside protective piece that can become loose.

 

maybe he flew over a speed bump to fast? heh

 

oka weill i broke it when i was leaving m girl friends house and when i was backing up from the drvie way i hit my dual exhaust pipes on the asphalt and i noticed the noise like 30 seconds later at a slow speed. i am not going to fix it because i am going to put a 408 small block and change the whole exhaust system so i do not really care at this point does that make sense