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Old 07-15-2003, 11:47 PM   #1
Sub25RSDTown
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Join Date: Jul 2002
Location: Dallas , TX
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99RS 57 Chevy Truck,
88 BMW 325i *For Sale*

Question 99RS exhaust ?

Just lookin for some advice on gettin a new exhaust system..whats the best to do, replace the pipeing from the cat. all the way back with 2.25 pipin? or replace the cats ? sorry for the dumb ? noob (what all do i have to deal with .. CEL?) I have a N1 muffler to put on just lookin for the best set up

also what size is the stock piping?
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Old 07-16-2003, 09:47 AM   #2
nySulli
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i think stock piping is 1 7/8", and since you already have a motor, try vivid racing for the mrt headerback, but have them take off the muffler, thats the budget route to go and should give you some nice gains
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Old 07-16-2003, 10:21 AM   #3
DanzBorin
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Quote:
Originally posted by nySulli
i think stock piping is 1 7/8", and since you already have a motor, try vivid racing for the mrt headerback, but have them take off the muffler, thats the budget route to go and should give you some nice gains
i think you mean muffler, not motor...

didn't want anybody confused
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Old 07-16-2003, 01:27 PM   #4
Sub25RSDTown
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Originally posted by nySulli
i think stock piping is 1 7/8", and since you already have a motor, try vivid racing for the mrt headerback, but have them take off the muffler, thats the budget route to go and should give you some nice gains

........
and boy was I Thanks ..... anyone else got some more answers? did he mean have them take off the cats? cause i am going to of course have them take off the Stock muffler to replace it with the Straight threw N1 2.5 inlet .... either way , was just looking to see if i should replace the cat or just the intermedate pipein with 2.25 pipe
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Old 07-16-2003, 01:59 PM   #5
DanzBorin
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Quote:
Originally posted by Sub25RSDTown
and boy was I Thanks ..... anyone else got some more answers? did he mean have them take off the cats? cause i am going to of course have them take off the Stock muffler to replace it with the Straight threw N1 2.5 inlet .... either way , was just looking to see if i should replace the cat or just the intermedate pipein with 2.25 pipe
He means you should order the MRT system (headers, High flow cat, mid pipe and muffler), but tell them to leave off the muffler section. This will save you some money, and let you use your N1 muffler... You will have to have an exhaust shop mate the muffler to the MRT mid pipe. Make sure they use 2.25" piping and have them put on a flange to bolt to the MRT mid pipe...

Hope this helps...
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