Originally Posted by Boyswrx
Hey guys, im new to this forum
recently picked up a 06 wrx. my plans are to try and keep it as stock as possible considering its my everyday driver including canada's winters. my plans
1. spark plugs- NGK Laser Iridium- what do you think? good plugs yes no?
2.exhuast- all sounds aside what should i do for best performance. eg. header or cat back..
3. Blow off valve- wondering what ones the best for performance and noise. what is needed to tune your car afterwards.
4. Air intake- what is the best one and what do i need to do when im done installing
5. anythiny else?- should i consider fuel filter ect.??
Please let me know what you think.
First of all, welcome! I'm always happy to see another hawkeye around here.
1. I did a bunch of research on spark plugs a little while back and here's what I found: http://www.wrxtuners.com/forums/f103...ug-info-27782/
2. For absolute best performance, get a bellmouth style downpipe, any 3" cat back, and equal length headers OR Grimmspeed PnP w/ high-flow crosspipe (although you'll lose the signature subaru boxer rumble if you get equal length headers - but to some, the performance gains are worth it... since you want to remain mostly stock, the grimmspeed pnp/coated option might be the way to go along with a nice tbe and stage 2 tune)
3. Honestly, don't worry about the blow off valve - atmospheric, hybrid, or full recirc. Just do the intake silencer delete (a.k.a. snorkus mod) and get a K&N or other drop in panel filter and call it a day.
4. See #3. Otherwise, if you MUST have an intake, get an SPT intake with a heat shield. I don't believe Cobb makes theirs any more, but I could be wrong or maybe you can find one somewhere if you look around.
5. If I were you, I'd just buy a nice turbo back exhaust and get a stage 2 tune and that should probably keep you happy for a while. That can be done on somewhat of a budget if that's a concern, or you can go all out and get some really nice equipment. Either way, I'd suggest that setup and try it out for a while while you save up because the next step above that is to upgrade your turbo (which means also a bigger intercooler, injectors, fuel pump, and usually some other goodies... and a tune)
Read the Manifesto and see if you have any other questions. And again, welcome!
In my opinion, Cobb makes the best downpipe for 02-07 WRXs and STis. Get the Street version with a high-flow cayalytic converter. You'll only lose several (5 +/-) hp because of it, but you'll remain slightly more legal, pollute less, etc.