Deciding on Mufflers

[gman697]

Hey guys, well I finally decided im going to get some duals. I was looking a flowmaster, hmmm a little bit too expensive. Dynomax is kinda high too. I was wondering, does just a $25 glasspack decrease HP at all? I plan on taking out the one muffler, putting two mufflers on and making it true duals. Ive also heard that my model truck gets a lot of HP from back pressure. So will doing this decrease my HP at all?

[silveradoHO]

Hey guys, well I finally decided im going to get some duals. I was looking a flowmaster, hmmm a little bit too expensive. Dynomax is kinda high too. I was wondering, does just a $25 glasspack decrease HP at all? I plan on taking out the one muffler, putting two mufflers on and making it true duals. Ive also heard that my model truck gets a lot of HP from back pressure. So will doing this decrease my HP at all?

 

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The back pressure affects your low end torque more than your hp. Your top end hp will go up with duel exhaust, but low end it may feel a little sluggish. I've never used glasspacks, so I don't know how they compare to flowmaster.