Will a high flow cat and a cat back exhaust cause a over boost condition . Thanks for the help

 

Generally no...add a DP and maybe.

 

Most likely, no...But I think it depends on other conditions as well. With a cat converter though, it's more likely to have over boost condition. For future mods, why not just spend a lil more and have a boost controller installed anyway? EVC would make it safe for sure.

 

Add a dp, mbc, intake, and get her tuned!

 

tune it...no

 

No tune? No life..

 

I have intake and tbe no cat and just put in apporiate map with my accessport, no one mentioned anything to me about over boosting should i be worried, and if i need a tune why did i bother with and accessport, im not logging or anything with it, just put in map and threw it in glove box.

 

Before I got my car tuned, I had a HFC but the car did overboosted. So if you planning just to do some mild mods, then get yourself a cat-back and an intake, you will have fun for a little while

 

That's the conclusion I came to when I opted for the ECU tuning method.

Except... you got it ***-backward. An "Off the Shelf" map will not compare with a "Pro Tune". Just won't. Look on the various forums for the gains from a professional tune. I suppose if you were swapping parts every weekend and you wanted to experiment with your "butt-Dyno", you could randomly flash maps and see how it felt.

For myself, the go-fast parts and the tune are being installed 1-2. I didn't see the point in paying upwards of $600 for a device that would only be used by a tuner once (or twice, if I upgrade turbo and cams and God-only-knows-what) - especially if I had to pay the tuner for his time and expertise, too. Unless Cobb Access Port tuners work for free? Nope, didn't think so.

 

i have a cobb a/p stage 2 oct 93, tbe, injen intake and icp and hit boost creep.

 

What HFC did you have? Was it 100cell, 200/300? I'm thinking of a 300cell HFC with CBE as my first "real" performance mod and I'm curious how safe it would be to do this without a tune.

I do plan on getting tuned, I'm just curious if it would be risky with that kind of a setup. (not really trying to hijack the thread, it's mostly on topic..)