So after decided to hold on to the 06 xB rather than going for the 08 xB, we are still wanting to try to boost the power of the car.

I recently installed a Fujita SRI and notice a bit of an improvement from a stop and during accelleration, but I'm hoping for a bit more.

Now, I don't think I'm going to mess with anything like a turbo or a supercharger, but I'm thinking of going the route of an aftermarket exhaust, a pulley and perhaps a header.

We have Tanabe springs on the car, so it's sitting quite low to the ground. So I would need to have an exhaust that isn't going to hang much lower than the factory system or I'll risk scraping it in some areas. Any suggestions? Not looking for something that's going to sound like a lawn mower, just add a couple HP and help open up the SRI and so on.

Would you guys suggest starting with a new exhaust? Would a new pulley and header make any difference? Basically, what would the next step be for me now that we've got the Fujita SRI installed...

Thx

 

get the strup v2 exaust much better clearance as opposed to the v2. if you want something that is a little quieter, check out the 5zigen or the Blitz... Deffinatly get a good 4-1 or 4-2-1 header if you want to really maximize the gains from the intake and exaust. the pully is also a good idea, but will not get you any more HP, although it will free up some lost HP due to the lower rotational mass of the pulley. the engine will rev up and down quicker, but not actually be any more powerfull. also, you can try to lighten the box as much as possible by removing things like the spare tire, jack, seats, etc if that is an option.

 

After looking around I like the look of this Borla catback exhaust...

http://www.trdsparks.com/displaypart...2&parts_id=427

If you look at the install instructions on TRDSparks, it looks like the muffler part sits up under the rear section where the factory one sits, so it wouldn't be any lower.

Looking at the TRD Exhaust, it looks like the muffler is much closer to the tip, and lower...which I think would risk scraping.

http://www.newscionparts.com/photos/...dat?1129207712

The looks like the muffler would sit lower than the tip...where the Borla seems like the muffler is up higher and back under the rear end...so it wouldn't.



Thoughts?

 

You said strup v2 twice there...

 

Just by looking at this, I think it would scrape when my wife leaves her office. there's a steep drop out of her parking lot and believe it or not, her old exhaust tip (something we got at some store) would scrape. We ended up getting the tip you can get from dealers for the scion, and it doesn't scrap.

I think this thing would end up scraping because of how the muffler is right behind the tip and would sit down lower than the tip itself...which is also quite large.

 

See how in this pic, the borla muffler sits up higher, up behind the tip...and out of the way...

 

you wont scrape with any exhaust except the greddy evo2. im on tanabe springs as well and with the greddy evo2 exhaust, the muffler sits like 4" off the ground. the strup and other exhaust systems dont have the big muffler like the greddy does so you will be fine with the strup v2.

 

What about the Tanabe exhaust?





this looks like it has decent clearance. i called a local shop and they said they carry these. also the guy there has a r3.0 as well and he said it sounds nice.

 

I'm still leaning toward the Borla...just becuase of the fact it's got the same style oval tip I have now, which isn't as large as the round of the Tanabe.

 

i run the 5zigen exuast, and i am lowered, no scraping issues at all, it sits up as high as stock, the only ones that you will scrape with is the greedy evo 2 and the strup v1,those 2 sit lower then stock, thats why strup redesigned the exasut and came out with the v2.
just remember one key thing, more bends = more restriction = less overall performance, if its performance you are after, i would go with a high performance cannister type set up, but it's really up to your preference on look and sound. the difference in HP would probobly be 1-3 hp, which to me is negligable..
happy motoring!

 

I'm running the TRD dropped on Goldlines. I've scraped it once, but that was with 5 guys in the car backing out of a driveway. I think anything would've scraped in that situation.

 

yeah, i never ride with more then 3 peeps in the box at any time... ok, well a few times i had 4 people in there, but we didn't scrape... i'm very good about taking driveways and speed bumps slowly and at angles.

 

i have the evo 2 on drop 2 2/1 back and 3 in the front and my muffler scraps every were i go ..need a better muffler too

 

if you want a mod you will feel the difference, go with the pulley, you wont notice any gains with the exhaust, do it for the looks and sounds... as far as a header, if you want more off the line grunt, go with a 4-2-1 header, it will improve the low and mid range, a 4-1 will improve the high but you will loose a little in the low...

 

Decided to say screw it and just leave it be. This thing is never going to really feel any different. It's not worth spending the $$ on.

After reading about headers...a 4-1 isn't going to help the low end, which is where it needs it. And a 4-2-1 doesn't work on the xB for whatever reason, which is why companies like DC don't offer one.

And the exhaust isn't really going to make a difference that I'd notice in accelleration. A pulley might, but for the money it would cost plus having it installed, probably not worth it.

also, the car shimmies and the steering wheel vibrates at 70+ anyways, even tho they tell me the wheels are balanced and aligned, so I've just about accepted the fact this car was built for economy and not any type of performance, even in the slightest of ways.

So that's that...it's great for driving in town and whatnot, but on the highway it's just always going to be annoying.