tatasta

iTrader: (24)

Hey,

Based on the mods in my sig, would going to LTs be worth doing???

Thanks

corvet786c

iTrader: (6)

I think u might get about 10rwhp up top.IMO I had macs on my auto 2002 WS6 and wished I had longtubes. With this car in sig I have long tubes now and great tone and feel the trq up top.

Assman

iTrader: (2)

I would also like to know about this, I've been thinking of making the change too.

SSNISTR

iTrader: (10)

My friend gained 13 RWHP, Macs to Kooks. And it will sound better too.

ScreaminRedZ

iTrader: (3)

Damn! 13 RWHP! I only gained 12 going from my stock manifolds to Dynatech LT's!

Zach@MTI

iTrader: (3)

We went from some mid lengths on an 04 GTO to some Kooks longtube 1 7/8" primary and the car picked up a solid 10-15 throughout the powerband...

AINT SKEERED

iTrader: (2)

I picked up on the dyno but not on the track. THe sound difference is worth it though.

gruntwork

iTrader: (2)

We have similar setups, and I personally wouldn't go through the money or trouble to swap my macs for long tubes. It's your call dude.

ScreaminRedZ

iTrader: (3)

^It all comes down to the money. For 13 rwhp I'd do it, but if you're only gonna see 5 or 6 then no way.

98camaroLS1M6

iTrader: (35)

how bad do you want that 10-15 rwhp??? Honestly, you could sell the macs and then get some lts for 400+dollars.

JS

iTrader: (4)

Is it worth the trouble of changing them out?
I dont know that answer but I can tell u I went 11.30's@119 with Macs
THEY WORK

Hennytime

iTrader: (33)

they work pretty well. you might see a tenth and a mph from switching. scavenging might look like a great deal on paper but like communism it falls short in the real world. now on a stroker i would go with anything with larger primaries, but i got my macs for 200 bucks and so far ive trapped 111mph with that and a hotcam with a tci ssf3800. first time out. ran a 12.4 with a 1.85 60' so its far from ideal

ScreaminRedZ

iTrader: (3)

Do the midlengths only gain 5 hp over the stock manifolds? It seems like the long tubes are good for 17-22ish over the stockers, and everyone is gaining like 10-15 over the mid lengths...

NHRAMAN

iTrader: (1)

The sound alone will be worth it. Period.

Spartan

You can do the primary mod and collector mod to a set of MAC and all you'll gain from a LT is the midrange trq.
See ls1howto.com for details

MikeG

iTrader: (33)

Here are some new and interesting results...

https://ls1tech.com/forums/florida-members/831128-ar-headers-tomorrow.html

PewterScreaminMach

iTrader: (7)

Wow, that's an extremely impressive gain. Time to research the 1 7/8" headers...

jhanner

i made the swap from the macs with the 80 series flowmaster to jet hots and flowmaster's dumped and gained 15 hp and 21 tq and they went in alot easier than the macs too

JBIRD02

iTrader: (4)

Yep, sure did! I figured it'd pick up about 10-12hp, but didnt think it'd pick up that much torque.
I helped with the install, and he's right, for some reason the LT's were a lot easier to slide in and out compared to the mac's

Benjamin Russick

iTrader: (1)

I'd keep the MACs. You will only pick up around 5rwhp up top with LTs if you have done the collector mod and cleaned up the welds on the MACs. The LTs will make more TQ and mid-range, tho...