TRD supercharger

Just finished spec u headers and exhaust. Initial impressions are meh. We will see once I have more time with it on and allow for break in time.

 

Really? Supercharged or NA? I wasn't a fan of the sound clips from the Spec U

 

Supercharged 2.85 and intake

 

I wish there were some clips of just the Spec-U exhaust without headers.

 

Well, I'm sure youll see some power gains. Coming from stock headers/exhaust?

 

Probably about the same, only difference is front cats. I sat around and listened to a bunch of sound bits back in the day and just wasn't a fan of the Spec U sound, sounded a hair to Euro to me. Granted its got good power and URD seemed to have put more love in to that exhaust than any others, but I have to run shorties because California, and I wanted the 3" exhaust with a good sound

 

The Spec-U headers seem very well designed since they report you don't lose low end torque/power unlike a lot of headers. I share your pain on the shorties. Stupid VA emissions...

 

Yup

 

I seriously considered Spec U headers and just become competant at swapping them out for Smog, but the Total Chaos Coil Bucket Gussets dont fit with those headers, and Id rather gusset shit that needs it than add another 10 hp over my Doug Thorlet shorties lol

 

Oh yeah man, you'll see a bump. Did you pull off your battery cable and let the ECU reset?

 

Fair point haha. I'm thinking of changing over to a full spec U setup once I am out of this emissions hellhole. I skipped bucket gussets.

 

Nope, how long should i do that

 

Well, LT truck needs them lol, but anyhoo, If you're looking for straigjt performance, the full Spec U system is probably about as good as you can get for our trucks. Combined with a URD SC youll probably be pretty happy lol. and yeah, emissions sucks ass. I resigned myself to shorties and swapping out my Y pipe and Intake in 5 years for Smog testing lol

 

Did you lose low end power??

 

20-30 minute IIRC? Id just remove the battery cables, go watch a show or something, put it back on whenever. Just remember that if you're in an auto, itll relearn your shift point so if you want it to shift more aggressively, drive aggressively after doing this

 

Just the negative terminal or both.

 

He shouldnt have, AFAIK URD had a good dyno on the URD system and showed gains throughout the entire RPM band

 

Just the negative should be fine

 

Maybe. I drove it for 30 min, I need alot more driving time

 

I'm still waiting to I see reviews on the AFE headers.....with the high flow cats. I just like the idea of the cats already being on and not having to get em welded on. Plus I like the idea of high flow cats.....how do you guys think those cats would be power wise????