Blackvenom01

well i was messin round looking at stuff and saw some granatelli plugs claiming they add 15 hp n/a and 35hp for forced...i know that plugs and coils and ignitions and stuff like that help out on the older ones like 5.0's...so do they really help us that much

Timspony

If Plugs add those kind of #'s ...post a link and I'll look at them!

Blackvenom01

well there it is let me know what you think

http://www.americanmuscle.com/gms-co...s-4v-9904.html

cobraetti

I have the summit hi-po coils(chk summits website) I really don't know what gains they gave, I think I noticed a little better mid-range

Blackvenom01

ya i might check that out idk if you looked at the link but it also said throttle response so idk if its a load of bs or not

MAD SVT

I bought these and installed them, i'd love to tell you how good they work BUT
Heres the problem, 2 of the 8 came faulty, 1 came completely defective, i ended up putting my stock ones back on while im waiting for some type of customer service to take care of me. My performance shop pretty much suggested that i take these off and try and get a refund.

HEY YOU WANNA BUY MINE!?!?! HAHA

Theres better ways to spend $500.

Blackvenom01

wow thats some bad luck there man and sorry im not interested haha

OzzDOA

Aftermarket COPs are worthless, keep the stockers.

Timspony

+1 On the Coil Packs ^^^....My friend bought those and picked-up nothing! Waste of $$$ ...I thought you were talking spark plugs....

Blackvenom01

not spark plugs lol my bad with my abbreviation....but thanks for the info i thought it was way to good to be true