What is the stock size pipe for my 91 RS? I am asking this because i just bought an RS but it does not have a muffler, also would i need to weld the muffler on or can i bolt it with the clamps i am thinking of the summit muffler until i get money for a cat back system.

 

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and if you want to get a head start run a 3 inch pipe from the cat - use a 31 inch 3 inch internal chambered exhaust as the mid pipe, then you can add a new 3 in cat and a set of 2055 headers.
the exhaust will cost you about 80.00 and another 50.00 for the pipes. then later add the cat and headers.

 

So i could go into 3in from the cat would the muffler shop do that or can i do that my self, because i was thinking of just adding a glasspack or muffler on it until i put my 350 and put the complete exhaust from headers to muffler

 

I was seeing in summit the magnaflow muffler with 3in inlet or should i just save up until i have enough for the cat back

 

dont waste you money there are cheaper places to get a nice catback system. go here http://banditexhaust.com/catalog/adv...16829&x=11&y=8 and make them a bid of 275.00 and they will come back at 315 or so.

 

Ok thank you i will go their when i have the money would you happen to know how to do a tbi swap into a tpi that you could help me in

 

You were right they do sell them that cheap thank you i am gonna make a post for people to get this exhaust at that price