pnoygil

nan88

iTrader: (1)

The PPE downpipe from FIGS Engineering is ~$520 right now.
Is the downpipe worth it without a tune?

http://www.shopfigs.com/v3/CAT-G3-LEXUS-IS/PPE200tDP

Sheddy

I saw an increase of around +10whp with an upgraded downpipe. If you are going to get one without a tune just make sure you are getting a good O2 sensor spacer to avoid a CEL.

Sheddy

https://www.ebay.com/i/283366531223?chn=ps




https://www.ebay.com/itm/OBX-Stainle...~Mn:rk:11:pf:0



OBX is making down-pipes as well.

Quillo

just ordered my down pipe!!! 😁😁😁😁😁 also ordered some drilled and slotted rotors. Will post pics of everything and let you guys know. Ill also be buying forsure a CEL eliminator. Will definitely let you guys know.

WhyHateTho

Downpipe is on my list. I've narrowed my choice down to PPE, which did you get??

Quillo

Got the obx dp. Contacted the sellers. Got all the specs, compared them to all the ones on the threads and all the ones i can find online period. Was happy with overall obx specs and bought them after the rotors. Lol i need to buy an cel eliminator for sure, but im very excited for the purchase and ofcourse the savings.

Quillo

Hey, just curious, did you have a sort of raspy tone on cold start ups or when you turn on the ac or at specific high idles??

mvaldez24

Hey guys, I kind of decided and gave up on performance for this platform but still curious if a downpipe is worth it.
Which downpipe do you guys recommend? PPE the best out there?
Anybody out there having issues with CEL even after installing the O2 sensor spacer? Would this void warranty and are you guys reverting back to stock downpipe when getting serviced?
Thanks!

SWXF

I can't answer all of your questions but I can answer a few.

IMO a downpipe is worth it with a tune. I'm running a TTi catted downpipe and i can definitely feel the difference over the stock one.

Regarding the CEL, after installing the TTi downpipe and driving around for awhile, it threw a p0420 code (not sure why it did). Installing a 90 degree spacer with a smaller opening got rid of the P0420 code but triggered a P0137 code. I tried drilling a 1/2" hole on the spacer but it did not help. After clearing the code and driving just less than 50 miles, CEL with the same code appeared again. I'm going to test out other spacers next and hopefully the CEL will be gone for good.

Bastrd6

Been wanting to do a downpipe. But considering how much the shop foreman flipped out on my injen intake I've been a bit reluctant to make the jump. Especially with 6 years of warranty left.

WhyHateTho

Flipped out? What Happened??

Bastrd6

Took pics of the engine bay. Blamed the boost issue I was having on the intake. Even said the car was lowered (its not) and just went on and on about aftermarket mods causing my issues. All the car had was the intake. Lol ok and window tint. He showed me a non f sport 250 and told me to look at how much higher it sat etc etc etc.. if the next closest Lexus dealer wasnt another hour + out I'd go to that one instead.

So due to that I've held back on some mods.

WhyHateTho

Don't f-sports sit lower or have a smaller wheel gap? Either way That sucks, sorry for your troubles.

tnilc

I have a 2018 RC300 F Sport.

I installed a PPE Decatted Downpipe. I went through a few different O2 spacers before combining a 90 degree angled spacer with a longer spacer to get rid of my CEL. So far it hasn't returned since then, I think this was since July. I only have 7k miles on the car tho but all is good. I also have a BMS Stage 1 tune.

And yes, downpipe is worth it IMO.