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Old 09-18-2003, 04:32 PM   #1
FuelCutOff
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Thumbs up Scooby Sport Catless Turbo Back

I am so impressed with this thing that I just had to put in a good word. This system rocks!!!! The car has this beautiful low rumble, not at all ricey or raspy, and it has not cracked or popped yet either (on for a week). It took two days before my CEL went off, but that'll get fixed with the reflash. Also, The torque on this thing has jumped drastically, rough estimate at around 2500, I start feeling the turbo kick in. I also have this sweet trubo whistle. Great job rally preformance!!!

-Rami.
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Old 10-04-2003, 10:37 PM   #2
BIGSKYWRX
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It's a great setup for sure. Get an uppipe (maybe you already have) and a reflash and your in for another big surprise.

Spoolup- 16.5 psi @ 2900 rpms, 200 ft lbs of torque @ ~ 3000 rpms.

Just perfect for autox/rallyx, makes for a good daily driver as well-very good manners and getting 26mpg @ 80mph on our interstate-not too shabby.

Rallyperformance has a winner here.

Big Sky
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Old 10-06-2003, 02:40 PM   #3
peepshow
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Yup, I have to agree. I have the catless turbo back on my car (still the Hayward & Scott version) and I love it. It will start popping on decel after a couple of months, but I like it. Just as a heads up, it will get noticeably louder after a while. I'm thinking of throwing a stainless 14" resonator in the midpipe to quiet it down some.

- Trent
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Old 10-07-2003, 03:56 PM   #4
tubbytreat
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I agree as well! JUST put on my ScoobySport uppipe, downpipe, and muffler this past Saturday and it really has such a wonderful sound! It's starting to get cold here in Ohio, but I'm driving with the windows down!!

I made a neat DIY with lots of pics after my install. You can see it here: http://www.clubwrx.net/forums/showth...threadid=39284

I DO notice a bit of backfiring when I really rev the car up high (>6k) at a stoplight or something when it's in neutral. I kinda like it, but know it's running rich. Do you think the ECU reset trick would fix my A/F ratio?

Enjoy!
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Old 10-07-2003, 05:00 PM   #5
capt.sensible
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Default Volume Question

Tubbytreat,

If you don't mind, I've got a quick question: does your setup retain the stock exhaust resonator/front midpipe and rear midpipe with cat? If so, does the resonator tame the volume of the muffler a bit?

I ask because I'm about to buy the ScoobySport/Rally Performance Stage 2 package, which is your exact setup plus an ECU reflash. However, as much as I love the SS sound, I just moved to Southern California and the cops around here are unbelievably nuts about really loud exhausts -- I see imports pulled over constantly.

Thanks, and enjoy your SS mods.

Paul
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Old 10-07-2003, 05:15 PM   #6
capt.sensible
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Default One More Thing

Tubbytreat,

Wow -- I just looked over your install instructions for the up-pipe, downpipe and muffler -- I am very impressed. I've never seen such detailed, lucid instructions for an install before. Anyone about to install this hardware should take a look.

My compliments.

PH
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Old 10-07-2003, 07:57 PM   #7
BIGSKYWRX
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If your concerned w/ sound, I'd reccomend keeping both the 3rd cat and resonator sections as they will "tone" down things a bit.

You'll still make plenty of power w/ these sections in.

Also I have friend who has the dual tip SS muffler and it is a little quieter than the traditional single tip- same nice boxer gurgle, just a smidge quieter.

BTW the SS system isn't that loud, louder than stock obviously, but much quieter than F&F crowd w/ their cantelope shooters.

tubby- restting the ECU won't help the A/F ratios- the reflash will however. Resetting the ECU will bring the advacned multiplier to 8, which could be bad or good depending on where it was at before resetting. If the engine was very "happy" it could be as high as 16, "unhappy" as low as 0. That's where a delta dash is handy- you can quickly deteremine the advanced multiplier- among a whole host of other things.

Big Sky
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Old 10-07-2003, 08:15 PM   #8
tubbytreats
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Hey guys, thanks for the positive comments on the DIY. I poured a good afternoon into that one, but feel it was so worth it!!

I have the ScoobySport dp, up, and muffler. I DID keep the stock midpipe and center pipe with resonator in it. I think the sound is perfect!! I live in a rich neighborhood (the Beverly Hills of Dayton, OH) and people don't even seem to notice. SS stuff has a nice DEEP rumble and isn't annoying at highway speeds either.

Personally, the sound is WONDERFUL, and I ALMOST got the dual tip just to be the 1st to get it Oh well, someone else can post their review of it, I'd be willing to compare my exhaust to anyone else's.

I think I'm making about 260 HP at the crank now, it's crazy! I can squeal all 4 tires from a launch with little effort. I used to have to abuse the tranny (only did this twice), but it's easy now. Great, now I'll have to buy new tires soon!

I'm going for Stage 2 Cobb Reflash sometime soon, so I know my A/F ratios will get better than. I'm just wondering if a reflash would help my ECU re-coop faster and learn the new exhaust so I can get better gas mileage. (Mine has dropped significantly, but I'm sure that's cause I'm driving it hard now)

I've got 93 even 94 Octane here in Ohio, should I try the ECU reset trick to set my multiplier at 16? I'm thinking I could get even more power with a little advanced ignition timing.
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Old 10-07-2003, 09:04 PM   #9
CirrusWRX
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OH MY GOD THOSE DIRECTIONS ARE AMAZING!

I think I had a few bloody knuckles after reading it! Great writeup and great review all.
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Old 10-07-2003, 09:27 PM   #10
BIGSKYWRX
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If you reset your ECU you get 8, it's possible your lower than that now however. It will got to 16 if you put the right loads on it, if not it can take quite awhile to get there and sometimes it will go down.

One of the many advantages of the delta dash. You should also consider RallyPerformance's ecutek reflash- it's more than the Cobb, but they have considerable experience w/ the ScoobySport setup. The ecutek also works hand in hand w/ delta dash- pulls cel codes, resets ecu, user tuning capability, road dyno- on and on. Just another option to consider.

BTW- I don't know if you have a boost gauge, but w/ that setup (no reflash) + a couple of Samco bits- I was boosting 15.5 psi- it was a little spikey, but not terrible.

Big Sky
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Old 10-07-2003, 09:30 PM   #11
tubbytreats
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I have the Stock Subaru Performance Gauge Pack and haven't noticed a difference in the amount of boost pressure I'm making. I know about a trick to set the timing multiplier to 16, involving 2600 rpm in 3rd gear for 10 seconds or something.

I'm gonna give it a shot and see what happens.
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Old 08-12-2005, 10:06 PM   #12
WRXedUSA
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Bump from hell, but here goes....


Just installed the straight midpipe and the H&S classic ScoobySport muffer (2.5") on the stock STi.


Wow. This is the best exhaust system you can buy. To describe it, it's like a well behaved kid. It likes to play, but it know's it's place. It's quieter than the stock muffler under 4k and burbles real nice above. I feel some mid range power increase, nothing crazy though.

Hayward & Scott, nice product.
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Old 08-23-2005, 05:39 PM   #13
maho4807
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I need a scoobysport and cannot get through to rallyperformance. Help I need a vendor.
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Old 08-23-2005, 07:50 PM   #14
Psydotek
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Old 08-24-2005, 04:28 AM   #15
Subaruman5
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yeah I got one on my car NA and it's such an awesome muffler. Great investment!
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Old 08-24-2005, 01:07 PM   #16
Siper2
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Quote:
Originally Posted by Psydotek
Definitely. Rich is a great guy, and runs a tight ship at Daddy's.

=S2=
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Old 08-25-2005, 04:24 PM   #17
WRXedUSA
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You can go to Daddies or directly to Hayward & Scott.
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Old 08-25-2005, 04:48 PM   #18
Subaruman5
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go through daddy's and save 150 for shipping. go directly with h and s and pay 150 to get it in a week. I'd go with daddys since it will be cheaper and you have to only weight a month. i'm patient and rather save money
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Old 08-29-2005, 05:59 PM   #19
Sperm
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I've been running a catless H&S Scoobysport turbo back for a year now and I love it.
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Old 09-01-2005, 02:14 PM   #20
Goose013
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I've been running just the back box on my 03' WRX and I love the sound. Looking to add the rest soon.
FYI I think daddysscp.com had a up pipe and 2 down pipes in stock last week. Good luck. I'm trying to find a used set up myself.... I'm broke!
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Old 09-02-2005, 01:54 PM   #21
tcrown
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I've been trying to find an instance or information of the scoobysport rallye on an STI. Anyone seen/heard anything about it?

Btw, I've sent 2 emails to rallyperformance but they haven't responded in almost 10 days. I guess they don't need business.
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