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Tomorrow the yellow beast gets its GMPP tune kit, from a GM dealer. I hope I like the results, since my GXP is running perfectly. Does "If it ain't broke, don't fix it" apply in this situation? I hope not.
Mean Yellow Roadster
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3,485 Posts
I have it and love it on my Mean GXP. No problems.:thumbs:
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8,143 Posts
Just MAKE SURE THEY SOLDER THE CONNECTIONS to the MAP sensors!
Do NOT accept crimps, they WILL fail.
Do NOT accept crimps, they WILL fail.
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3,485 Posts
:agree::agree: I had them solder mine.
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616 Posts
I bought the Crate Engines tune, so I hope no soldering or crimping is needed. Tom at Crate described it as "plug & play".
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3,485 Posts
They came out with that after I bought mine from Crate.:devil: You have the latest version so you are good to go! You will love the extra power you get with this tune. It really kicks!!!:thumbs:
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616 Posts
I am looking forward to the increased power and TORQUE !
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1,068 Posts
Question: With an auto, is there any reason to do the GMPP upgrade prior to a quality tune from Vince/Trifecta? I know the no-lift shift is a nice feature for the manuals, but wondered if the Stage Two, as it used to be called, was a prerequisite for a better aftermarket tune. Thanks much, S
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616 Posts
The tune is being installed right now???? Hope all goes well. Next mod is a club racer mean yellow hardtop. Then maybe a new exhaut to improve the engibe sound.
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616 Posts
The GMPP tune is in. Delivers smootg increase in power. Love it. Time to go out & play...
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616 Posts
OK... the GMPP tune is great. Very smooth power curve, and lots of it. Unless I decide to race, this enough power. Period. Now i need a new exhaust to sound cool. Suggestions?
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3,485 Posts
Solo GXP Mach is what I have. You should also get the Solo Hi Flow Cat while you are at it....combined you get a nice rumble but not overwhelming....plus you pick up some HP with Solo Cat. All comes together now that you have the tune.:thumbs:
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616 Posts
Where do I go to get these items. Will a GM shop do the install? Some idea of cost. I really appreciate any suggestions.
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3,485 Posts
Google "Solo Performance" they ship everywhere. Not sure where you are located but they have a shop near Buffalo NY. If you go to them they will install for free. I went to their CDN location just outside of Toronto. If you can't get to them find a good performance or muffler shop in your area and have the items shipped to them for install.
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616 Posts
I looked up the muffler & cat. They look good. Will they really give the horsepower and torque increases Solo claims? Combined with the GMPP tune, that would be horsepower beyond 300.
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2,727 Posts
On my old Gxp we dynoed just the hi flo cat and the race exhaust and saw 29 hp increase
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3,485 Posts
Yep!!! I am configured that way and I figure I am 300hp or so.
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616 Posts
Ireally appreciate all the help. Another question; if I have the Solo Mach free flow exhaust system, and the solo free flow CAT installed on my GXP, will the engine need to be adjusted or re tuned. I already had my GM dealer install the GMPP tune? And what are realistic expectations from this modification?
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