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Old 01-23-2012, 09:52 PM   #1
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Exhaust questions

I'm looking to upgrade my exhaust and have a few questions. Are there any disadvantages to just having 2 flowmaster 40s welded into the stock catback as opposed to replacing the entire system? My current system is in good shape and I recently polished the tips so I would like to keep it if possible. Also is the stock pipe size 2.5 or 2.25 on a 98 gt? Thanks in advance for any replies
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Old 01-24-2012, 01:31 AM   #2
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Originally Posted by Tarheel8613
I'm looking to upgrade my exhaust and have a few questions. Are there any disadvantages to just having 2 flowmaster 40s welded into the stock catback as opposed to replacing the entire system? My current system is in good shape and I recently polished the tips so I would like to keep it if possible. Also is the stock pipe size 2.5 or 2.25 on a 98 gt? Thanks in advance for any replies
Well the entire system would help put a few extra ponies to the wheels, like 25ish maybe more, stock pipes are pretty restrictive, the welding thing I would say not to do because if you do it and then decided to change pipes and all that you would have to cut them off and risk damaging them and having to get new ones, but if you ever do plan on changing them and just getting new flow masters or what have you then go ahead. It will make it sound better and gain a little more ponies, now the size of stock pipes that one I don't know
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Old 01-24-2012, 02:58 AM   #3
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The stock size is 2.25 inches. However, I recommend getting the full catback. The tips look just like stock ones but nicely polished. (minus the little "FLOWMASTER" engraving). It will give you more HP as well because of the larger size being less restrictive.
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Old 01-24-2012, 03:05 PM   #4
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Re: Exhaust questions

Thanks for the responses. Im also trying to decide between the 40s or 44s. I guess its all personal preference. Ive been listening to clips for the last week and cant decide.
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Old 01-24-2012, 03:11 PM   #5
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Originally Posted by Tarheel8613
Thanks for the responses. Im also trying to decide between the 40s or 44s. I guess its all personal preference. Ive been listening to clips for the last week and cant decide.
I really enjoy my 40s, catless system, H-pipe. I think it scares away too many ricers though.
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Old 01-24-2012, 03:21 PM   #6
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If you just want to improve sound then just do a cat back setup!.. But if you want more hp then you need to do a H or X-pipe with performance cats, or just go with and off road mid pipe!..

---------- Post added at 04:21 PM ---------- Previous post was at 04:18 PM ----------

I would also suggest not to weld them on!..
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Old 01-25-2012, 08:15 AM   #7
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Re: Exhaust questions

+11 I agree with "Eturner" 100%.
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