I have an 04' WRX with Prodrive Intake and SPT Cat Back.

I am looking to add a Down Pipe here soon. And get the Snowmann Tuning!!!

I want to get some advice on Down Pipes.

Right now I am looking at the Invidia WRX STI V3 Divorced Wastegate Downpipe Catless, but I am not sure if running catless is ok.

Also some people have told me that I cant run a DP on an 04 WRX with out Full EM (due to OL/CL problems).

Also whats with the divorced wastegate?

Any and all information would help a lot. I am new to the whole DP topic!!

Thanks,

Mike

 

Catted or non is really a personal choice the benefit of running catless isnt really that great over a Hi-flo catted DP. I would suggest getting a belmouth design though, such as the Helix or Cobb. FWIW: you would have full EM at that point.

 

go with the helix v3 catless with the option to have external wastegate. theres a plate that goes on the dp so if you dont want to have external waste gate then you dont have to but if you get a new turbo and its set up for external you dont have to buy a new dp you just remove the plate and there you go. go to GRUPPE-S its $199 shipped you cant beat that price

 

Thats a great price!

Do I have to worry about that Wastegate provision leaking while I am not using it?

And I am still not sure if I want to go catted or not. Lots of debates on using hi-flow or not.

Side Question: With the catless DP and my SPT Cat Back is there a chance of flames?

 

Look into Megan Racing if you're worrying about spending too much money. Helix is going down the crapper, fast. Gruppe-s is always sold out of helix stuff anyways. I know for a FACT that Megan Racing is quality stuff. I think the DP is like 150. Check out boostbuddy dot com. But, MR doesn't have a cat. Any catted DP is going to cost you around 1-200 more dollars.

 

i have the helix v3 catless on now ive had for a month and half and no leaks go catless were in florida... if you want flames get a bov if you dont already have one. i shoot flames all the time now it gets annoying but its funny when you scare the ish out of peolpe in traffic

 

Sounds good. Think im going to pick up the V3 Helix.

Thanks!

 

good choice

 

Yeah with that DP, SPT Cat-Back and the Prodrive Intake. After my Snowman tune I should be running pretty good!!!

- Mike

 

if youre interested in a nice stock sti tmic before your tune i got one