i have a 1988 iroc z 350 tpi and this winter i put a new muffler and chrome tips on it but i alos noticed that the exhaust has been there awhile and the car has lost some horse power so i was wondering if it could be possible that the cat could be clogged my car has bad injectors and has been burning realy rich could that had of plugged it the exhaust coming out the back isn't that intense or loud i can' plug one tip with bairly any push at all.

 

i say gut it you can always straight pipe it later or get a high flow one