aftermarket exhaust
12-03-2005, 12:52 PM
#1
7th Gear
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aftermarket exhaust
just wondering if anyone out there can make any recommendations for my 1997 tt as im looking for an exhaust system. Also i want to by-pass cats would a high-flo cat work better or a straight through pipe many thanks 
12-03-2005, 01:15 PM
#2
Nordschleife Master
ATA,
What sort of smog laws do they have over there in the UK? Is this a concern? Do you still have the stock ECU? Will a "check-engine-light" bother you?
What sort of smog laws do they have over there in the UK? Is this a concern? Do you still have the stock ECU? Will a "check-engine-light" bother you?
12-03-2005, 01:45 PM
#4
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Better off with 100 cells, with the new computerised MOT your car won't pass with a cat bypass.
If you want loud and free flow get 100 cell cats and muffler bypass pipes.
FYI - MOT is kind of like the US inspection/smog
If you want loud and free flow get 100 cell cats and muffler bypass pipes.
FYI - MOT is kind of like the US inspection/smog
12-03-2005, 03:25 PM
#6
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True 130mm cartridges.. Many 100 cell manufactures have some flow restrictions that net out the benifit of moving to a 100 cell system. That's why I have decided to do/make the 100 cell conversion.
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12-03-2005, 03:45 PM
#10
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My 100 cell cats with the Gemballa is not loud at all 
. I had RSR with OEM cats before and it was louder. 
I'll have to give it a little more time with the new set up to better compare them.
. I had RSR with OEM cats before and it was louder. I'll have to give it a little more time with the new set up to better compare them.
12-03-2005, 04:23 PM
#12
Originally Posted by strato58
Kevin, can you tell me how your 100 cells would work with an RSR muffler? Also how much louder are the 100 cells from stock cats?
Regards
Bob
Regards
Bob
http://media.putfile.com/RSR-Mufflers-97-993TT
With no cats it was way too loud. With 100 cell cats I'd bet it'd be perfect. Cool thing about RSR's is you can send them back if you don't like what you hear.