What purpose does a racepipe serve?

schlepperock

Member
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07 ms3
Found a corksport racepipe for 50$
Was curious if it's worth it. Will I need a tune to run it?
Mods are: Cobb sri,hks bpv, tip that I'm not sure what brand,(previous owner left it on)
Thanks.
 
It's a great way to add a little oomph. No tune needed, no CEL either. It basically replaces the stock mid-pipe which has a restrictive cat with a nice open pipe. Will make exhaust a little louder.
 
definitely worth $50. Louder? probably a little bit, yes.
Before you get a TP, I would recommend getting an accessport. This way you can monitor your fuel pressure. Oh, and you get good power from the accessport, too.
 
If you remove a cat and replace it with an open pipe, it absolutely will be louder. Cats dampen sound remarkably well, they are basically little chambers with grid-shaped material, situated across the flow. My Mustang (GT, the Cobra is just loud) exhaust without a catback (as in NO catback exhaust at all) was quieter with the stock catted H-pipe, than it was with a fully muffled catback and an Off-Road X-pipe (no cats). It was considerably louder without the cats.
 
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