Quote:
Originally Posted by Bad70supreme
What I see is 10 more HP at peak revs, and a tade more tq! Even though peak numbers are the same, you can see that up top the engine is breathing and pulling a tad stronger! I would not say it does nothing for power when it clearly does... Add some mods and that top end with the NPP exhaust will start to show even more! So if you want to keep a bone stock car it's fine, but add standard boltons I would want the NPP as I think it would clearly perform better.
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Making a bit more power past the shift point does not mean much to me. I am all for non-stock cars, but kind of like to see a bit more bang for the buck. I am not knocking anyone that went the NPP route, I just can not justify it. I do see your point if cam and head mods are made and shift points are going to be raised. It may make a difference at that point, but then I would think a complete exhaust system would be in order.