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Hey, i just bought a C5 about 2 months ago, and im going to put LG pro long tubed headers, and a borla catback system into my car. But i'm just curious as to how much HP im looking to gain doing these mods, and also would doing a tune after these mods make a big difference too? any input is appreciated, thanks =)
I'm 18 btw, just sold my 3000GT and bought this car and i can't wait to see what people are going to say at my High School.
I know the feeling. I wanna do heads or gears but the pocketbook ain't willing.
I saw a dyno chart where with just LG LTs and a tune there was a 27 HP gain. Doing headers and cat-back that number should be possible, sometimes the tuning alone can net you some good numbers.
You should probably go with a tune, and for HP, maybe 15-20. That is, however, WITH the tune.
20 maybe 25 with a tune. The headers are good for 15 and the tune is good for 5-10. Not much but sound from the catback. Are you installing a X-pipe or using the stock H pipe?
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