for that money i would love to try it. i might take the jump next week and get them. i was going to spend that money on camber arms but this sounds better!

 

on sale i suggest you call and talk to them so the order goes thru faster http://www.ebay.com/itm/Lexus-IS250-...8e3a6d&vxp=mtr

 

Hi,

We are not sure about the fitment on Lexus IS350 or the performance gains incase these Header fits.

Its all sold to IS250 applications

Thank you !

John

- topspeed-pro1-performance

 

Headers for a RWD 250 should physically fit a RWD 350

that said, the pipes will be sized for one engine, not the other, so I wouldn't recommend putting 250 headers on a 350 if performance is your concern (and vice versa)

 

CHEAP
FAST
RELIABLE

you get 2 out of 3....never all three.

 

That's a bummer...

 

Yep, thus the reason I was concerned about getting close-ups of those iffy welds.

 

What kind of r&d do they do? There is more to making parts than just making them fit. Their website is under construction. I find it hard to believe at the price they are charging they can be the quality of PPE.

 

Ppe are alot more due to being longtube headers these are shortys they make tons of parts for alot of cars put in google topspeed review or topspeed pro1 review you can find from porsche down to honda the is300 guys have reviews too actual before i put them on i measured the outlets same size as ppe .. i would love to gotten ppe but due to cash flow i couldnt but at a 3rd of the price of ppe i got my headers o2 sims and install and i love them the power is there !!! Theres people always skeptical with these parts just like hks replica exhaust for the z guys i had both and the topspeed pro 1 sounded better and cost 1/4th of hks

 

The cobalt ss has all 3 lmao

 

Fixed for you

 

I'm sorry, but a 13.5 - 14.2 second car is not fast......hell, even high 12 second cars arent that fast.

so, now we're back to cheap and reliable cause it isnt fast....and I give you the reliable portion graciously.

 

Do you consider a isf fast ?? Because with a proper tune the ss will leave it in the dust ... also im talking about 09+ not the s/c ive witnessd the ss take out alot of cars there isnt another car that can almost get you 30mpg in city and with a couple grand run 12s/11s ... no there not exactly fast but compared to the is250 they are

 

I remember back in the 90's when 14's was quick XD

 

my dad goes on and on about how his plymouth duster was the fastest thing in town back then. I asked him what it ran in the quarter and he said (very proudly) 13.8!!!

Back on to subject though, those headers are iffy at best and I think the really cut corners by making it a two piece setup. You'll probably get a better sound but I wouldnt be too hopeful on performance.