What are the best power mods?
I was thinking of the following:
JHM Tune
Fast Intentions Down Pipe with Cats
Fast Intentions Cat-Back exhaust
Is there actually a good intake available?
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What are the best power mods?
I was thinking of the following:
JHM Tune
Fast Intentions Down Pipe with Cats
Fast Intentions Cat-Back exhaust
Is there actually a good intake available?
There is no good intake available. But I'm sure someone will disagree with me.
Best bet is to get everything you listed and the JHM intake manifold and call it a day.
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Should I go with the resonated exhaust or will that be too quiet since I want cats?
Is just about to link that Q, I am almost done gathering all the parts for this build as well.
Is just about to link that Q, I am almost done gathering all the parts for this build as well. Intake spacers, ported intake manifold..
dont waste time on intake...Audi got it right the first time around.
Downpipes and catback are a must to unlock cars full potential. Dont waste money on new DP's, just get piggies...you'll still pass emissions and only spend about 3-4 hundred bucks (unless you want to gut yourself which cost you nothing but an afternoon. After you've done exhaust then get a tune and maybe ported manifold and call it a day.
If you plan on pulling the motor for any repairs (such as timing chain) then splurge and get the exhaust headers as well and install while motor is out. Car becomes a torque monster with these, so I've heard.
no, no they didn't.Quote:
Originally Posted by Fourpoint282
2.5" Fullback + tune. By the looks of it, you've already done your homework[up] Keep stock air box as nothing aftermarket has proven to be more efficient just yet.
Explain please...what did Audi get wrong?Quote:
Originally Posted by q_dubz
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For instance the intake flapper that switches to short runner mode to enhance top end performance but it also is in the way causing turbulent airflow.Quote:
Originally Posted by Fourpoint282
I thought the flapper was separate from the intake system. Per the issue you mentioned, is there a known fix for flapper issue?Quote:
Originally Posted by q_dubz
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Best power modification for the B6 S4, is either it's turbocharged, or the entire 4.2 V8 is yanked in favour of a much more robust (and tuneable) 2.7T.
I like your thinking..lolQuote:
Originally Posted by Nollywood
Without going FI or doing a swap...Headers with high flow downstream cats (upstream ones gone with headers), LW crank pulley, K&N drop in, JHM Intake spacers, and JHM Tune are my suggestions.
Timing chain service, hone/new rings, and valve guides/seals : ) Runs waaay better once those are done!!
The best performance mod: Maintenance
Not sexy and frequently overlooked, nonetheless more important for the long run than any after market work.
Op I did FI downpipes with cats and I like the results. Due to Avant with tip, I did not do 2.5 CBs.
Someone say turbo!? [:D]Quote:
Originally Posted by Nollywood
What was the reason for not doing the 2.5 cb's? I have a avant tip as well and I'm just curiousQuote:
Originally Posted by s4ski
In a word: drone. Avant tips are notorious for this. Sedan cabins are more sealed from exhaust resonance than Avants. Our cars tend to hit the harmonic frequency of "drone" around 1800-2200 RPM. As you know, the shift point for tips live in this range while those with MT can shift around it. In truth all exhausts drone, it's just whether it registers on your tolerance scale. While it is subjective, my research indicated a significant incidence of complaint regarding 2.5 x pipe setups on this configuration. I am sensitive about sound quality and could not tolerate a droning and obnoxiously loud exhaust. Anyway, I reasoned the biggest performance gains were in addressing the restrictive downpipes, which 2.5 pipes sans pre cats do. Hi flow cats act as additional mufflers in containing sound, while piggies are essentially echo chambers that possibly increase drone. 2.25 H pipe with resonators seem to control the drone and sound volume in addition to the cats. My exhaust flies under the radar when I want it to, and makes a statement when I want it to. Yes I left some performance potential on the table, but it does not drone, maybe some slight cabin ambience on cold mornings, which I enjoy. IMHO this exhaust hits the goldilocks zone for this model configuration in performance upgrade and OEM+ sound quality without drone.Quote:
Originally Posted by ILVTRANCE