Cat Back Exhaust Systems

[Arok22]

Anyone out there know much about the MSP Greddy SP2 catback exhaust system? I'm looking to upgrade my exhaust a little and want to keep it legal. I know there are choices...magnaflow, Perrin and Vibrant..... Any insights?

I want a good look with a nice sound and only have a couple options.

(help)

 

[BOOSTR]

I've had it on mine for 4 years. Its a great choice. Not loud at all under normal driving but has an agressive sound when your foot gets heavy.

 

[Matrix]

Yeah, I bought mine used in January 2007.
It looks, sounds, and fits great.

 

[Swerny]

I love mine and will never change it.

I have tried several exhaust before it but am finally happy.

 

[Arok22]

It sounds as if the Greddy SP2 is a winner!! yipee! Thanks for the input. Any others have comments on the SP2 exhaust?

 

[Random_Zer0]

so just greddy cat back all the rest of your piping stock? and how would that sound compared to what cat back system it already has? myself i want it louder but not cackling and obnoxious.
i dont think the stock msp exhaust sounds bad but almost too quiet. sorry for asking questions from your questions.

 

[Matrix]

so just greddy cat back all the rest of your piping stock? and how would that sound compared to what cat back system it already has? myself i want it louder but not cackling and obnoxious.
i dont think the stock msp exhaust sounds bad but almost too quiet. sorry for asking questions from your questions.

Hell no. It's recommended that you get a J+mid pipe setup also.

 

[livelyjay]

The Vibrant exhaust sounds good, but can be too loud for long drives, even with the silencer in place. The build quality is very good as well.

 

[1moreMPH]

without replacing the j-midpipe or gutting your cats, you will see virtually no gains from a cat-back exhaust. Maybe a teeny tiny bit of +sound, but i doubt it'll be that much.

The GHL & Vibrant i think have proven themselves to be 2 of the best exhausts money can buy for the MSP. I have the vibrant and love it, though at times it can be a bit loud.

The Greddy will sound great and probably not too loud if you combo it with a J-midpipe or gut a cat or 2. my .02...

oh yea, and no matter what exhaust you get, it will not sound cackling and obnoxious. msps have a good sounding tone, and the turbo helps with that a lot. It's not going to be a fart-canned honda.

 

[Random_Zer0]

ok so why not just change the j pipe or gut one or two cats and leave the rest? and by gutting the cats wont that lead to more black funk? sorry im showing my noobness but really dont want to make a costly mistake. i dont have alot of cash to do much but would like to do the exhaust and really want a BOV but have read it is not as easy as just bolting on. dont want to get off subject. im really interested in the exhausts and what to do and not to do.

 

[1moreMPH]

gutting the cats and leaving the exhaust as is, is a fine solution. The cats are the main culprit of clogging up your exhaust. Now keep in mind, you will not pass emissions if you gut both of them; gutting 1 should be fine with emissions, but won't yield a whole lot of gain...

if you need to pass emissions but want a cheap solution and a nice exhaust, get a catless J-midpipe from protegegarage/SLSperformance/apexi and swap it out for your stocker. That will give a very nice tone, and good performance...then you can just put the stock back in for emissions testing. All for less than $200. or you can custom a straight pipe for even cheaper.

 

[503MSP]

I got the j-pipe back mid-pipe with a cat from SLS there were some gains, although i'm not sure how since I haven't dynoed the car but there was a difference in throttle response. The sound is just a tad bit louder than the stock exhaust with a deeper tone to it once u get on the gas. I say go with the mid pipe first and then upgrade to the cat-back to see how you like the sound. I plan to get the sp2 after I get the fmic from CS and that should be nice.

 

[Random_Zer0]

ok sls has a j midpipe(one piece) and protege garage has just a midpipe. not alot of difference in price so which is the better option?

 

[livelyjay]

SLS uses aluminized pipe while I believe ProtegeGarage uses stainless. If you live in the rust belt of the northeast, stainless steel is your best bet. You could paint the aluminized with engine temp paint though to give it some protection.

 

[Matrix]

In my opinion, all things being equal (i.e., material, size, weight, etc.), the less joints/pieces there are, the better it is.

The increased number of pieces in the exhaust is just more gaskets and opportunities for leaks.

 

[livelyjay]

I agree with what Matrix says, but I've never had a problem with leaks. The only leak I had with my Vibrant exhaust was where the J-pipe meets the S-pipe. With the increased pipe diameter it was damn near impossible to put the bolts in. Many people went with allen bolts to fix this problem, but I never got around to it.

I also like slip joints, much like the GHL and I often wonder why not more manufacturers use this method. It seems like it would be less likely to leak and then there isn't the effort of welding flanges on.