therealcreeper

iTrader: (37)

looking to buy some cats soon, and probably going with thunderbolts. anyone have any experience with these? i've read pretty much all positive reviews

also, is there a major difference in flow between the ceramic and metallic brick ones? any pros/cons besides price and ceramics generally blowing out faster?

spudnick3119

I have two of the metallic ones and they are fine. The inside of them look identical to the Magnaflow 59959 cats.

bgblockelcamino

iTrader: (9)

i sell and install a lot of thunderbolts. seems to hold well unless raw fuel is sent through then they will break up easy.

therealcreeper

iTrader: (37)

my car is tuned so it shouldn't be sending through much raw fuel. does this go for all cats?

bgblockelcamino

iTrader: (9)

pretty much goes for all cats. the OE ones will take most abuse. the thunderbolts are nice since they are compact. and they pass inspection.

therealcreeper

iTrader: (37)

thanks for the replies. ordering them tonight.

SOMbitch

iTrader: (8)

Get metallic cores. The ceramcs are much more brittle and I have seen the insides break up after being scraped or bottomed out.

therealcreeper

iTrader: (37)

yep those are the ones i ordered. need to quiet my car down a tad and it's just nice to know i'm pretty legal.