changing exhaust, want to be able to turbo in the future

[karioth]

I have a normally asperated KA24 engine and my friend and I are gonan tune it up (new spark plugs and wires, exhaust, and intake). Exhaust being a fairly big ticket item i wanted some advice on this. We we discussing whether or not to get 2.5 or 2.25 inch piping and i was told to ask you guys about it. I want piping that will give me a performance boost with my stock KA, but also give me the ability to turbocharge it without having to change the exhaust again. Is this possible? Any help is appreciated.

[zachosz]

2.5 would be the best solution for now, you won't loose too much down low and your turbo will be comfortable with it.

[silviaNE]

just go with 80mm piping. If your car is a 5spd then the loss will be barley noticable. much better for when you go turbo. If you have the money, i suggest going all stainless steel.

[240SXedUp]

Bigger is good for turbo. If you have 400-500 bucks get an Apex N1 or GP Sports Spec D. Good for both N/A and Turbo. Look good too

[SloS13]

If you're seriously entertaining the idea of going turbo, start saving for turbo instead. I/H/E gains are nothing.

Want to beat a stock 240?Get I/H/E

Want to beat just about anything?Get a turbo, buy 2.5" mandrel bends and have a muffler shop weld it together for you. Ive heard that welding pre-made bends arent exactly perfect, but if you're talking about a turboed motor, you might end up losing like 2hp or something because of it, but you'll easily save $175-$253.14

Thats just my input because i try to do good mods, but for cheap.