Flowmaster Exhaust

[serega12]

ok i was planing on getting the muffler and pipes from summit racing, its like 45 mins from my house, they probably have some sort of universal kit.

That's not a bad idea if you have an access to a welding machine. I'd up to at least 2.25... 2" is what you already have there (according to the guys who did my exhaust).

[petrified.rabbit]

if you are eliminating all the other restrictions, but not doing engine work. you kind of want to keep the same diameter for velocity. If you are putting all the restriction back in, then you could do 2 1/4 as long as they are not too free flowing.

If you are doing other engine work to increase air flow through the engine, (turbo, cams, etc) then you can increase it to match the engine..

[screech985]

yea i have a MIG welder.

other than a cone filter my engine is stock, are you saying that i should just stick to 2" pipe.

[thehunterooo]

yup, 2" is good, but if you do some crazy mods, then you need it to be bigger

but for example, if you had vtec, then you would need a 6" tip, but you will be fine with 2"

[screech985]

so since they don't make the muffler in a 2" inlet would it be okay to put a 2" to 2.25" adapter on before the muffler.

[thehunterooo]

yeah you will be fine, little things like that dont really matter on such a small engine

[serega12]

So what' you're saying if I'm going with 3" CAI and xiaogary's cat-delete header, one straight through resonator, straight through muffler, and 2.25" pipe I'm doing my car more harm than good on all stock internals? Because if everything goes well, God willing, I will be picking up xiaogary's header from the post office tomorrow (they missed me today trying to deliver it while I was picking up updated sway bar bushings at a dealer 40 miles away) and once that's installed - I will have pretty much what I described at the beginning of the post. All of it is already in except for the header.

[serega12]

Also, what would I need to do with cams and how much would that run me? Is it just for performance or would it increase MPG too if my driving habits stay moderate?

this is just a question for now, since I was planning on stopping after the header install, but now that you guys say something I may need to re-consider my set-up. Will I actually loose HP from all that?

[Daox]

If I were going to stop after the header (no cams), I would stay with 2" exhaust piping myself. It has nothing to do with being good or bad for the internals. It just has to do with where (what rpm) you make your power at.

A new cam will give you more peak horsepower. However, you will loose some low rpm power to gain it at higher rpms. It will also reduce your mpg. How much you gain/loose all depends on how aggressive of a cam you go with.

[reddemonx92]

Doesnt Xiaogary make alot of performance parts for us? I know he makes something else besides headers.