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View Full Version : Downpipe and exhaust advice for my turbo project



SubaruKenny_d
08-30-2014, 09:24 PM
Alright so I recently bought a TD04 turbo off a wrx that I will be adding to my 01 legacy. I was snooping around on nasioc abut catless downpipes and some other minor things about the project. What is your input on downpipes? I was going to try to cut on cost and possibly go with an ebay special, OR go with a higher end dp ie: Invidia, Cobb, Grimm Speed, etc. Secondly, should I buy a bell mouth or divorced, I want as much turbo whistle as possible out of it. *I plan on running headers w/ catless up pipe to the catless dp then to a 3" straight pipe back. Give me some feedback on your setups!

Here is the post I was reading regarding dp's: http://forums.nasioc.com/forums/showthread.php?t=445812

anothernord
09-03-2014, 11:17 PM
eBay specials are fine. I've run one of the $80 ones for years. The difference between bellmouth and divorced is so little that it's not worth the extra price. Just grab an eBay special and be done.

vinceftlc
03-13-2015, 02:33 AM
you should feel a good difference with any aftermarket whether it be ebay or invidia

Cervantes
03-19-2015, 09:33 AM
I like the divorce style DP. When you go aftermarket DP, specially catless, you'll need a way to control boost. Catless can cause boost spike and over boosting. That can cut down the life of your turbo or cause your car to go into limp mode.

lord flashheart
03-19-2015, 03:08 PM
I bought an used eBay bell mouth for $15 and have had zero issues with it in the 5 years I've had it. The guy before me had it for years as well.