going from MACS to LT's is it worth it?
https://ls1tech.com/forums/showthrea...45#post9136045
MACs, MAC Y-pipe with HF cats', canned tune - 334
Standard QTPs, QTP catd' Y-pipe and HF cats', dyno' tune - 354
QTP HVMCs, QTP catd' Y-pipe and HF cats', dyno' tune - 366
These were on the same dyno' and the same tuner. They were on different days though.
My point - it certainly won't hurt to go long tubes. Is it worth the blood, sweat, and tears? That's up to you. The sound is certainly better, IMHO, but the difference in power was enough for me.
Good luck either way. Just make sure you go with a set that you know you'll be happy with.
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-Joel
After seeing the input from these guys, I'm getting more and more excited about getting these things off of my car.
After seeing the input from these guys, I'm getting more and more excited about getting these things off of my car.

-Joel
Macs with the MAC cats, MAYBE but their ORY and mids are a decent mod. IMHO, I made 399RWHP with mac mids and I think they are fine. Is it worth it for me to switch to LT's? Nah, i'd probably only gain 5-10 MAYBE so the cost and labor isn't worth it.
Macs with the MAC cats, MAYBE but their ORY and mids are a decent mod. IMHO, I made 399RWHP with mac mids and I think they are fine. Is it worth it for me to switch to LT's? Nah, i'd probably only gain 5-10 MAYBE so the cost and labor isn't worth it.
might jet keep em till i get the 408 and do a before/after to see how they are on a big cube motor, they are just as good as lt's on stock cubes





