kw05silverado

iTrader: (1)

I bought 2 27" magnaflows(6" round) and a X pipe all 2.5" piping. Tomorrow I'm going to a muffler shop, then on monday im taking it to this other shop (they're booked for tomorrow)and getting my cats removed(hes the only guy who does it). I know im going to feel some midrange and top end, especially when i remove the cats. about how much hp increase will this give me? Im guessing not much until i get the LTs on there.

TheChronic

iTrader: (5)

Yeah, not much. In fact, true duals on a 5.3 will make for a loss of low end torque which will probably be the biggest difference you notice.

kw05silverado

iTrader: (1)

yea i don't tow or anything, im more concerned about mid range and top end.

kw05silverado

iTrader: (1)

yea the exhaust shop was booked today. I have an appointment with them on monday. I hope it sounds good. Will the long tubes make much of a difference in sound?

KevinF56

iTrader: (9)

you'll feel a gain in the mid-range and top end, but in my opinion you don't need true duals. but, it will sound good.

brodystruck

iTrader: (6)

I want to see proof of this, a noticeable loss in low-end power. Who sees 2000rpms during a race anyways?

kw05silverado

iTrader: (1)

yea If I had not already purchased the magnaflows and x pipe, i woulda probably bought the header and y pipe combo. Oh well this won't hurt. I am going to cam it and spray.

RoosterMcCandles

iTrader: (4)

Read up on back pressure and such and you will see that it is true. Not many people see 2000 rpms during a race but I'm guessing you see 2000 rpms around town ALOT more than 5000. How many races are decided by dual exhaust? Dual exhaust isn't really a power adder but more of a mod only used to say you have it. Some people think true duals sound cool. I don't have true duals but I would bet I could outrun quite a few trucks with 'true duals'...

brodystruck

iTrader: (6)

When you see 2000rpms around town you're <50% throttle probably.

My point being: Going slightly too big on your exhaust pipe size (dual 3" on a mild 5.3L) isn't going to kill you, or even hurt you enough to notice much.

kw05silverado

iTrader: (1)

dual 3" will hurt u, but dual 2.5" won't.I'm almost thinking about backing out now and buying pacesetter headers and y pipe? what do u guys think? I could put one magnaflow on and have a single 3" pipe coming infront of the rear passager tire.