Have an 06 wagon, Stage 1’d for about a week before getting a Perrin catless dp and trying to go Stage 2….the key word there being “trying.”

My car doesn’t like the catless with my Hush, boosts crazy and fuel cuts with the quickness. I’ve tried a larger diameter pill and was going to have it tuned out but for the last month I’ve been reading and reading for possible solutions. I’ve been thinking about my options and would like to know how you guys would handle this.

Coworker tells me to just go back to Stage 1 but I've gotten a taste of Stage 2 and I just can't go back.

Not sure if you’ve read my other thread regarding how loud I think my Hush is with the Perrin catless. Yesterday was pulled over, not ticketed but pulled over for loud exhaust. Besides always having to watch out for cops, my trunk rattles from the exhaust vibrations. Don’t get me wrong, it sounds sick as hell but I’m down to lose hp for a quieter ride. I don’t track or race, just the occasional mashing onto freeways in the morning heading to work.

I’m thinking about going Stage 2 with the Perrin catless and stock cbe, sell the Hush and get some gauges (have read with aftermarket dp and stock exhaust should monitor EGTs). I realize that the Cobb maps were designed with a full TBE in mind but many run with the stock cbe and aftermarket dp without problems.

In spirit of saving dough and getting other things, and as I’ve said earlier, a little slower is okay. Another possibility I was thinking about is going Stage 2, trading my Perrin catless for a Helix catted, sticking with the Hush, no gauges, and sometime soon, a protune.

Basically the monies for the gauges would be coming from the sale of the Hush. Also, keeping the catless on instead of trading would mean I wouldn’t have to spend $75 to get it taken off.

Thanks for reading.

 

Definitely get a Protune. IMO, you should make that your next mod. My 07 had really, really bad AFRs with a catless DP and stock CBE. Untune, with DP and CBE I was having the same issues you described (fuel cut and boost creep). I got tuned in Jan 07 and haven't seen those issues since.

 

Oh great, I was hoping going back to my stock exhaust with the catless would solve the fuel cut/boost creep issue.

I'd think there'd be enough backpressure from the stock exhaust though.

Maybe I'm not reading your reponse correctly? Your catless dp and stock cbe still gave you those problems?

Thanks for the reply, man.

 

Sorry, With the stock CBE and catless DP I didn't get any fuel cut, but when I had my car dyno'd at GST with that set up my AFR readings were not good/safe.

 

Gotcha. Then I will put the stock CBE back on and see if I get the same results as you. Ultimately, I will get a tune. Just holding off for a bit until money is not as tight. Guess I'll sell the Hush to get tuned by Mike or Paul.

Appreciate your help.

 

get your setup to something supported by a stock cobb map. save money and get a pro-tune.

As for boost control, get an MBC for the pro-tune and get rid of all the pill nonsense. Ask Ed @ EQ Tuning about your setup and he will help you out. all he does is tuning. he tunes his daily driver and many others. i've been extremely happy with the results from Ed's work on my car. i've put over 40K miles on my car with his maps and zero problems.

 

If I'm gonna get a protune, would I still need to have parts supported by a stock Cobb map?

I've read that a MBC on an 06 isn't really worth it though. With a protune, wouldn't that eliminate the use of an MBC?

 

Why do you need gauges? I had an FP Green and daily drove for a year without gauges.

Like Mattsn0w said, just pay 90 bucks for a hallman MBC and get tuned.

Tuning is way better than throwing mods on.

 

if you get tuned you can run anything you want. MBC is generally thought of as better than a solenoid based boost control for boost stability and response (i dunno the technical details) You'll notice most drag racers run MBCs or electronically controlled MBCs (not to be confused with an EBC which is solenoid based)

EQ tuning's IM is EQtuning. He's online right now. Add him to your buddy list and consult him.
Or GST motorsports, IM is GSTMikeW.... and he's not online right now lol.

 

LOL, thanks!

 

Also, the catted DP isn't much quieter than the catless. Waste of money in california since it doesn't pass visual . Only reason you'd buy a catted DP is for states with sniffers but no visual smog.

 

No. But.... you will need to make sure that when you install these parts you drive like a granny until you get tuned.

you need to read more.
The stock boost control is garbage. It uses a T-splitter, a pill, and a solenoid controlling the waste gate. This is OK for factory tuning, but if you want to get more power with after market mods you need a more consistent boost control for a solid tune.

 

If you wanted to sell the hush, I might be willing to buy it back from you.

 

you don't have to drive like a granny if you have a turboback without a protune.. just don't smash the hell out of it is all, thus why i didn't drive my car last week for the drive up north(plus i'm close to an oil change)

It's best to get a tune however b/c it does run like crap(i have an 06 wrx), how do i know? cuz i have a perrin catless dp and greddy catback untuned. If i try to push it there's a 10% chance my engine jumps b/c i also have an aftermarket BOV, engine running alittle rich, a friend of mine had an 04 wrx with turboback for 9months(untuned) then upgrading turbo with supporting mods and got a tune and the car was fine.

next paycheck i will be getting a tune, and i can't wait

 

if you are interested in a trade for a more quiet i am willing to trade you my greddy evo 2 for the borla hush