Hey guys, just registered here at Honda Tech. I have a 2007 Fiji Blue Si w/ Navi. I was wondering which upgrades I should go with first, and if you had any brand name suggestions. Thanks

 

I wouldnt void my warranty on a car less than a year old but if you're determined, check out kingmotorsports.com- the Mugen stuff is pricey but everyone else loves it

Most people start out with an intake, exhaust, and then do springs/shocks or coilovers and better wheels/tires.

Personally i'd mess only wiht the suspension and wheels/tires right now. They won't really hurt your warranty too much and a better handling car with better tires and lighter wheels will give you better acceleration, handling, and braking.

When the warranty's up i'd go nuts with Hondata and a turbo/supercharger but once you do that your drivetrain warranty's pretty much shot.

 

i'd too get some wheels/tires dropped with springs combo first then intake exhaust. 18's sound nice 225/40 series with eibach springs

 

First thing should be UPGRADED TIRES.

 

Type X my respect to you but if tires and wheels are combo you get discounted deals > plus on top of that with springs .....

 

Okay. Suspension, wheels/tires sounds good. Although I have had bad experiences with lowered cars previously, (98 Eclipse GS, 92 DX Hatch) I would like to look into some springs that are good quality, and will lower my car enough to improve handling, but at the same time not own the ride on bumpier roads and elevated driveways. Suggestions? Also, I heard intake/exhaust wont void the warranty if the problem is unrelated, are factory upgrades worth looking into? Thanks

 

factory upgardes are ok but i would get Eibach lowering pro kit its about 1 inch drop and 1.2 on rear . i dont know whY???? factory does it like that , the ride handle is great and is stiffer on bumps as any lowering kit . and if you go with a 2'' drop which are sportline then your asking to feel more the road . neatherless both are great . checkout my cardomain/myspace 4 pix ..... back to the factory upgardes your paying more for the brand then what your getting so i decided not to go that route.

 

Honda factory performance offers a spring/shock combo that drops it a bit and tightens it up while maintaining ride quality, I believe TRE was the one with a writeup on it in here recently. It can be installed at the dealer and will fall under warranty.

Eibach, Tein, and H&R are good brands for just springs. Tokico, KYB, and Koni are good shock brands. Coilovers would cost more but you gain adjustability which is good with dropping the ride height and corner weighting.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 2007SiNister &raquo;</TD></TR><TR><TD CLASS="quote"> Also, I heard intake/exhaust wont void the warranty if the problem is unrelated, are factory upgrades worth looking into? Thanks </TD></TR></TABLE>

Correct, as long as it doesn't cause the issue in which you are trying to get fixed. For intake, I would loook at the Injen CAI.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by accordselux &raquo;</TD></TR><TR><TD CLASS="quote">Honda factory performance offers a spring/shock combo that drops it a bit and tightens it up while maintaining ride quality, I believe TRE was the one with a writeup on it in here recently. It can be installed at the dealer and will fall under warranty.

Eibach, Tein, and H&R are good brands for just springs. Tokico, KYB, and Koni are good shock brands. Coilovers would cost more but you gain adjustability which is good with dropping the ride height and corner weighting.</TD></TR></TABLE>

Agreed...
Also once you have that squared away get the Progress rear sway bar.
Then Intake, Header, Exhaust and reflash....should be good to go...
well thats at least what i want to do.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Si 4 Life &raquo;</TD></TR><TR><TD CLASS="quote">Correct, as long as it doesn't cause the issue in which you are trying to get fixed. For intake, I would loook at the Injen CAI. </TD></TR></TABLE>

The big thing with intakes are:

Oil from the filters clogging up sensors (AEM Dryflow fixes this)
Hydrolock from having a CAI that sucks up water
CARB ratings.

I'd avoid it for a while. There are problems currently with the DBW system, so once that problem gets fixed they won't pretend the problem was because of the intake

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by accordselux &raquo;</TD></TR><TR><TD CLASS="quote">The big thing with intakes are:

Oil from the filters clogging up sensors (AEM Dryflow fixes this)
Hydrolock from having a CAI that sucks up water
CARB ratings.</TD></TR></TABLE>

No issues here, but I do remember others talking about it. That is why I didn't go with AEM. They also make filter covers to block water from getting sucked in.

 

I've actually had a car hydrolock on me before (1998 Civic EX Coupe. Mugen CAI). Isn't there a bypass valve to avoid this? Also, what is DBW?

 

Hit up Tre_ for some nice HFP suspension for 550 plus shipping i believe and have the dealer install it. If they install after purchase i think it falls into a 12 month, 12k category, but dont quote me on that. I rode in an Si with the HFP suspension and the ride quality was amazing. I also saw someone on here that was running 14.2's on just intake alone. I can only imagine how quick you would be running with I/H/E and a reflash. High 13's maybe for a little less than 2k? Then again im a noob.

 

Haha EJ1 im pretty noob myself. Is reflash referring to the rev hang problem in the computer? If so, i thought that was only an issue for 2006 and they had fixed the problem for 07.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95ProjectEJ1 &raquo;</TD></TR><TR><TD CLASS="quote">Hit up Tre_ for some nice HFP suspension for 550 plus shipping i believe and have the dealer install it. If they install after purchase i think it falls into a 12 month, 12k category, but dont quote me on that. I rode in an Si with the HFP suspension and the ride quality was amazing. I also saw someone on here that was running 14.2's on just intake alone. I can only imagine how quick you would be running with I/H/E and a reflash. High 13's maybe for a little less than 2k? Then again im a noob. </TD></TR></TABLE>

No it's entirely possible to get some really low times with a reflashed bolton. on k20a.org i've seen some crazy numbers from little work. Intake, a good header, exhaust, and a specially designed intake manifold (with central throttle body so air is distributed equally through all ports) with a Hondata reflash gave some crazy numbers with just some light cams.

The only thing I'm recommending against right now is doing any sort of reflash. They're having problems iwth the DBW (Drive by Wire, using electronics instead of a throttle cable) right now and if they issue a service bulletin and they catch the reflash they'll probably be pissed off at you.

AEM dryflow filters are great, I have one, they filter better than the oiled ones and they look pretty nice, and they do offer bypass valves. I used to say cheapest is the best way to go, but if you want to have the best stuff, AEM is at the top.

 

From what i hear, dont quote me on this, they (hondata) will re-map your air/fuel and raise the redline to 8500 *shrugs*. Then again im noob and i don't know much. I know the reflash definitely helps. I guess for the rev-hang the dealerships have an update for that. The 06/07 Si are by far the nicest civic i have seen in a while. Thank god for 197hp and LSD. Oh, and the 6 spd is sweet too. Revs up to 8k so so smooth. Like a babies butt.

 

Bypass valves won't work on 8th gens.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95ProjectEJ1 &raquo;</TD></TR><TR><TD CLASS="quote">From what i hear, dont quote me on this, they (hondata) will re-map your air/fuel and raise the redline to 8500 *shrugs*. Then again im noob and i don't know much. I know the reflash definitely helps. I guess for the rev-hang the dealerships have an update for that. The 06/07 Si are by far the nicest civic i have seen in a while. Thank god for 197hp and LSD. Oh, and the 6 spd is sweet too. Revs up to 8k so so smooth. Like a babies butt. </TD></TR></TABLE>

Wrong, Hondata hasn't touched the a/f settings at all in the reflash. They just changed the rev limiter to 8600rpm, advanced the cam angle, and lowered the vtec crossover point to 4500rpm. Honda's reflash is just an update to fix rev hang and 1st gear hesitation. Hondata's reflash has also incorporated this, so no worries about trouble from Honda.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Fa1 &raquo;</TD></TR><TR><TD CLASS="quote">

Wrong, Hondata hasn't touched the a/f settings at all in the reflash. They just changed the rev limiter to 8600rpm, advanced the cam angle, and lowered the vtec crossover point to 4500rpm. Honda's reflash is just an update to fix rev hang and 1st gear hesitation. Hondata's reflash has also incorporated this, so no worries about trouble from Honda.</TD></TR></TABLE>

I see, good to know. Like i said im a noob when it comes to the 06+. Thank you for clearing that up and for not flaming me . Once i purchase my SI, i think i will just do some suspension work and maybe just intake at first. I really liked the ride quality of the HFP suspension and maybe a progress sway would be in order. Then again thats when i get my car. Maybe in a few months