Listen to this contraversy

[Hilikus Funkin]

I work at Auto Zone and I heard more crap (literally) about cars than I could even think up. I was talking to one of my fellow employees about how I may get a custom exhaust and a flowmaster muffler. Then everyone makes faces at me and says that flowmasters are only for domestics and I'm like what the hell, any part can be used on any car. Just like how the brand of spark plugs you use doesnt matter. They were trying to say that you cant use denso's in domestics because they wont work as well, and how boschs arent good for imports because the way theyre made. Mufflers are mufflers and spark plugs are spark plugs. The make and how theyre made and what theyre made of is what matters. I'm planning on getting Denso Iridiums in my civic and if not I'm getting Bosch Platinum +4's and theyre all like boschs wont work in your car. I'm sick of hearing all this crap. Plus most of the people I work with make fun of me because i bought a civic (theyre all rednecks). On sunday I sold 8 Denso Iridiums to a guy with a 96 Crown Victoria with a police engine at 12.99 a plug. He wanted the best and i gave him the best. Plugs are plugs, mufflers are mufflers. What works best works best no matter what kinda car.

[91civicDXdude]

just a heads up, platinum 4s suck dick. platinum isnt as good of a conductor as some, its just made to last a long time. plus, unless you have some MAJOR mods and i mean major as like 20+ psi, then just use NGK V-Power spark plugs. you will not notice any difference from the super expensive plugs besides about $15 more in your wallet.

[T-Mo]

I saw a big difference in plugs. Platinum 4's made my Prelude run like crap so I went back with NGK's.
I work at Advance and I disagree with you on the spark plugs issue. Muffler wise I don't know or care.

[FourthGenHatch]

The reason those Bosch platinums make your car run like crap is because most of them are non-gap type plugs. They have multiple electrodes and the power of the spark is just random. With a stock NGK plug you gap it to a certain amount and the spark is consistent and will run nicely. Most hardcore drag racers still run stock plugs. Anyone who is a slightly good mechanic can change a set of plugs. I would never leave plugs in my car for 30,000 miles or whatever the platinums are supposed to go to. I change my plugs about once a year and keep them fairly fresh. Its like $4 for a new set so not a big deal.

[Posey88cvic4dr]

I agree in that some parts are more for domestics and vise versa. Like when I see a domestic with something rice on it, it makes it a millon times worse. a mustang with an aluminum wing is just asking for it. But this is just me, do what you want with your car, after all, it is yours

[Kunundrum]

yeah I ran Bosch Plat's for about 10 mins... the car ran like crap. NGK-R work well and I been using Zex Plugs in my B16 and that works real well I find.

bosche is good for Euro cars

[vesper]

dunno what your talking about bosch plat's work great for me. i dont think its much of a big deal they are just plugs. not gonna really make to much of a difference.
i just dont think flow masters belong on imports. and the same for domestics.
no real reason just always kinda though it was rule of thumb.

[90civicracer]

Originally Posted by Posey88cvic4dr

I agree in that some parts are more for domestics and vise versa. Like when I see a domestic with something rice on it, it makes it a millon times worse. a mustang with an aluminum wing is just asking for it. But this is just me, do what you want with your car, after all, it is yours

Hell when i see an import with a aluminum wing i think he is asking for it. I hate alluminum wings, lol. Import, Domestic, whatever it may be on, lol.

[doug294]

I agree I put the bosh plat 4 in mine and they work great. It feels like my throttle response is better and I get a smoother idle. I guess it varies from engine to engine like every other mod. No two engines are the same.

[Jay eS Iye]

Flowmaster makes all different types of mufflers, for all different types of cars. The 50 series was the type used by people driving Ford Tempo's (I was a Tempo guy) and other smaller domestics. I think the 60 series is the import model, go to www.flowmaster.com it will show all the types

[Ace$nyper]

sum it up people who don't know there shit make shit up. morons like that also tend to spread there B/S as info to even lesser informed therefore getting many to belive crap like that.

[kris]

OEM all the way.

[CZ-R]

Originally Posted by kris

OEM all the way.

W3rd...

And when your Bosch plugs fuse themselves to your aluminum head from burning too hot you'll switch back to the NGK's you should've put in to begin with.

Been there, done that...

[crxlvr]

i ran the +4's also in my d15 and they actually improved my gas mileage and acceleration, just like the box said, ive not had a problem at all with them.

but it is true that some plugs will work better in different cars, cause of the conductor materials.

[Autocratic_1st_Gen]

Precious metal plugs tend to not run well in Honda's (except newer coil on plug types) with stock ignition systems because the stock ignition is not very powerfull.

It may have a high voltage with the regular plugs, but if you switch there may be too much V drop (or dampning of the high side or any other thing) across the coil to get a good spark.