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GMPP or SLP PowerFlow Cat-Back Exhaust?


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Posted

So, my exhaust keeps getting louder and louder. Its too the point now where i cant stand to drive my car and it needs fixed before i get pulled over. I crawled under the car after work last night and upon a first inspection it appears that the back of the resonator is rusted off...soo, i'm thinking about buying a catback system instead of trying to splice mine back together. I'm debating between the GMPP System or the SLP PowerFlow system. Summit has both and i can go pick them up to avoid crazy shipping costs. The SLP has no resonator where the GMPP system does...i'm thinking i'm gonna want the resonator to quiet it down a bit more and reduce interior noise, but if i get the SLP system i dont wanna have to hack it apart to put one in. Basically, what i'm asking is for opinions between the two...i can't seem to find any sound clips of the GMPP kit which would really make my decision easier...if anyone has any clips that would help alot, otherwise, if you've heard them both i'd like opinions on which sounds better. Thanks! :high5:

 

EDIT: Sound Clips

 

SLP:

GMPP:

Posted

I'd personally go with the GMPP, but it's up to you as far as the money is involved. GMPP kit is expensive as hell.

Posted

The gmpp kit is one of the cheapest kits for our cars...

 

For you... GMPP is frequently more on the pricey side for us in Canada.

 

Jamie

Posted

The resonator has been removed from my Intrigue and i can hear no difference whatsoever.

Posted

I like the the Powerflo better myself.

Kinda biased considering you've got one. :razz:

Posted

Buy my ZZP catback.........I'm looken to get rid of it and go back to a stock catback on the GTP honestly.

Posted

Ended up ordering the SLP system today...need to get it installed this weekend!

Posted

I like the the Powerflo better myself.

Kinda biased considering you've got one. :razz:

 

Nope, I've got stock :)

Posted

Stock or bust on the 3800's! Anything else sounds like crap!

 

stock w/ no res & no CAT w/ headers sounds amazing imo.

Posted

I like the the Powerflo better myself.

Kinda biased considering you've got one. :razz:

 

Nope, I've got stock :)

D'OH!

Posted

Buy my ZZP catback.........I'm looken to get rid of it and go back to a stock catback on the GTP honestly.

 

Should of taken him up on that... His GTP is the best sounding 3800 exhaust I have ever heard! Only one I can honestly say I have liked the sound of.

 

Jamie

Posted

But the thing is I need to fix my car ASAP and I had already placed my order!

Posted

Buy my ZZP catback.........I'm looken to get rid of it and go back to a stock catback on the GTP honestly.

 

Should of taken him up on that... His GTP is the best sounding 3800 exhaust I have ever heard! Only one I can honestly say I have liked the sound of.

 

Jamie

 

I actually might hang on to it.....The guy I was supposed to trade that for his GMPP catback kinda backed down and wnted to keep it.....I might just put in a 3'' magnaflow high flow CAT into the DP to quiet it down a tad...(or at least try to get rid of the drone from around town driving....its frikn LOUD)

Posted

Mine is too loud too!

I will be looking to get rid of my magnaflow mufflers, go to something that is baffled and then put an electric cut out ahead of the cat.

 

Jamie

Posted

SLP's fit and installation instructions are a fucking joke! I have to move a mount (which it doesn't explain which one) and then hopefully shit will start to line up. Right now it doesn't even look close! I'm not impressed at all...so much for being a "bolt on" system.

Posted

Buy my ZZP catback.........I'm looken to get rid of it and go back to a stock catback on the GTP honestly.

Keep me in mind

Posted

SLP's fit and installation instructions are a fucking joke! I have to move a mount (which it doesn't explain which one) and then hopefully shit will start to line up. Right now it doesn't even look close! I'm not impressed at all...so much for being a "bolt on" system.

 

Stock FTW.

Posted

Buy my ZZP catback.........I'm looken to get rid of it and go back to a stock catback on the GTP honestly.

Keep me in mind

 

You'll need a ZZP 3'' DP w/ a 3'' outlet for this catback to bolt up.

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