Back box if you want to make a noise, downpipe if you want power increase.

Will pass MOT emission test with just centre or just dp cat in place.

[Edited by pob on the job - 3/2/2002 4:39:13 PM]

 

Hi folks, new here so please assume I'm an idiot....

I just avoided redundancy by a gnat's chuff & want to treat myself. Have approx £350 to spend on my MY97 bog standard Impreza. ITG air filter is in the post, but I can't decide between SS (or PE) downpipe or backbox as my first mod. I'm after oomph 1st, burble 2nd....

I'm unlikely to have funds for any other mods for at least 6 months, so smiles per gallon is a priority.

Advice please!!

Tommo

 

From what I hear the down pipe mod allows the turbo to spin sooner and avoids troublesome back pressure which nauses up response.

If you fit a scoobysport d-pipe you should pull hard all the way to red line in all gears ! - wat u want !!!

 

Rather than go for the SS or PE d/p why not try the scoobymania one ive got one fitted to my scoob and she pulls great! (remembering that its bigger than both the PE and SS in diameter all the way thru and its a twin dump )

Sounds great too!

Tony

 

I've got a full Scoobysport system, I did the backbox first, then the d/p, and then the centre, I would say that the downpipe made the biggest difference in the way the car drives, it just makes everything work better, and I don't think the sound would be that intrusive with just a downpipe either, I know that if I were doing it again, I'd do the d/p first, and what's more, from the back of the car, no-one will know!
Ron

 

Hadn't heard of scoobymania. Will do some research.

Thanks everyone.

Wot's this 'redline' thing - I used to bang my nose on the windscreen in my Renault 19 16V from time to time, but don't seem to do it anymore in the Scoob......

 

Personnally I'd got for a backbox first...

the down pipe is only going to have limited effect as your backbox will still be restricting the flow of exhaust gas out of the engine.

Also looks nice and so you can see your money!

A lot of people go for the Scoobysport but I think they are all worth considering...

 

Persoanlly i'd sort the brakes out first, then do the power mods. but then I'm a bit odd

If you're doing the zorst, then I'd go for backbox first, then wait a little while and get the DP done.

 

Keeping in mind when u fit the DP it will fail its MOT

 

That's a fair point about the MOT fail when you have a fully catless system, but you can always refit a center/dp with cat (or cats) in them to pass.

I know that my car passes with just the DP cat in it, but am told it should pass even with decat, but will drop the DP back on if problems.

 

Downpipe

MD.

 

Do the D/P first. You could look in FOR SALE on here for 2nd hand & that way get D/P + b/box. For yumf you need IMHO an open neck type such as SS but I think the performance differences between the best are not large. OR post in WANTED. Hope this helps.

 

get a second hand back box & see if you can get the DP in the money you have left.

 

Never thought of 2nd hand. Duh!

thanks.

Interested in the brake mods tho' what do you recommend?

 

scoobysport downpipe

 

I'm with barge on this one - 2nd hand BB will be what, £150-£160? £200 left buys you a new Scoobysport downpipe. You might even get one 2nd hand, which will leave you enough to pay someone to fit it, as it can be a pain to do yourself.

I did BB first (s/h WR Sport) and just done DP (new Scoobysport). I think I'd probably do it in the same order again.

Cheers
Tim

 

oh just to confirm as I saw a post, if u go SS DP and SS or other backbox, and keep the centre cat, it will pass the MOT emission test? pls say yes some1

 

Yes it should,
I had a ss backbox with decat downpipe in my last uk impreza, passed with flying colours, just get the cat nice and hot first....

Alan