GMPP Exaust systems; how much HP (really)
#1
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GMPP Exaust systems; how much HP (really)
Hi guys, I was wondering if the GMPP exaust systems (touring or performance) really gives 12 HP on a 2.2L Cobalt... I want to get this and the GMPP intake as well but don't want to spend all that money for 2-5 HP...
What your opinion or experience with this?
What your opinion or experience with this?
#6
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on speed channel there was a a 2.2 or 2.4 forget and did a before and after dyno with exhaust and intake and together it was 12 hp ... I think its 10-12 for all balts
#7
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12hp has only been proven on the 2.0sc that ive seen.
I doubt it would give that much on a 2.2/2.4 but ive been wrong before
Id love to be proved wrong in this. cuz it would be great for a 2.2 to get 12whp from an exhaust.
I doubt it would give that much on a 2.2/2.4 but ive been wrong before
Id love to be proved wrong in this. cuz it would be great for a 2.2 to get 12whp from an exhaust.
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All the info I can offer is that it made my car more responsive. Feels like it pulls a tiny bit harder higher up, but I have an automatic so I dont experience the fun in full.
Touring is a softer low toned sound just fyi.
Touring is a softer low toned sound just fyi.
#14
Redline TV had an 06 Cobalt LS and dyno'd it stock at 125HP
then they installed the GMPP Performance Exaust and dyno'd it at 133HP (+8)
then they installed an Injen intake and dyno'd at 140HP (+7)
then they installed the GMPP Performance Exaust and dyno'd it at 133HP (+8)
then they installed an Injen intake and dyno'd at 140HP (+7)
#17
I have it on disc -- and NO I'm not going to download it. It's copyrighted material. I'll watch it again when I get the chance and get the Tq figures.
Funny thing is that it is an SAI equipped car but they didn't say what they did with the end of the SAI intake tube when they installed the Injen intake. You can see the installer holding the tube and then he just lets it go
Funny thing is that it is an SAI equipped car but they didn't say what they did with the end of the SAI intake tube when they installed the Injen intake. You can see the installer holding the tube and then he just lets it go
#22
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