New exhaust to complement supercharger?

[VehiGAZ]

Hey Cyrk,

Yes, I remember your ugly muffler job and it's replacement! (I'm glad it all worked out in the end). It sounds to me like I wouldn't be able to get more than a small boost in power from a custom exhaust job. Hmm... I think I'm unsold on that idea.


Tone,

Other than a high-flow air filter, are there any significant performance-enhancing mods you would recommend I do concurrently with the S/C install?

Zooper-Trooper said that the S/C kit uses the stock injectors, fuel pump, and fuel pressure regulator. I almost can't believe that the stock bits are capable of keeping up with the S/C! Is it really true?

[Cyrk]

Mine is going in for a larger fuel pump and a SAFC to hopefully tune the motor a bit since I have been running lean as of late and blew out my last muffler.

will have it dyno'd to see what else we can squeeze from it.

But yes the SC runs great with all the stock bits. About 75hp over stock with intake and some sorta of custom exhaust/muffler.

[Ascinder]

Yeah, you only really need higher flow injectors if you're doing some really serious boosting as I am sure any heavily modded WRX owner will tell you. For the amount of gain you'd be getting out of the supercharger, the stock injectors should be plenty. Once you run high boost(lots more air), an intercooler, etc. and are turning a couple hundred horespower more is when injectors come into play. I don't even think the transmission would be able to take that.