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Hello everyone, I’m seriously struggling to figure out what’s wrong with my car. It’s got a P0171 with long term fuel trims peaking into the mid +30s. I’ve checked the purge system, PCV system, replaced the MAF sensor, smoked the intake and had no leaks at all, O2 sensors appear to operate...

Selling my TurboTech motor mount. It has a bit over 1k miles on it so it’s partially broken in already. I deliver food so it was just too rough for me. $150 + shipping or best offer

Looking to buy a stock intake manifold. I messed up installing the fix kit on my car (see link) so I need to get another manifold and redo it. It can have the check valve (or preferably not). I'll cover shipping and all that...

I just got TTR mounts for my car and tried installing the nylon spacers to help the vibration. When I tried to tighten the bolt on the spacer it just squished the nylon up and over the bolt. How did you guys get it to work? I used the measurements that Preloader posted and it was a big fail lol...

So I finally got an UltraGauge to monitor my car about 2 days ago, and my KR has been super all over the place every time I do a pull. Just cruising around town it shows no KR at all, but the second I give it the beans the KR jumps. Most times when I do a pull it will have KR in the teens, but...

Currently there are three brands making mounts (that I know of) to help control the 3 poor mounts tasked with holding this engine and trans in place. I'm trying to find who makes the best ones. I don't want a ton of vibration in the cabin, she runs very smoothly right now. From most to least...

Hey there, so I just checked my check valve to see if the nipple was still hanging on (it was I think) and I noticed there is a lot of crap built up on the walls. The residue smells like fuel for some reason, but I'm guessing it's caked on oil? Just looked under my spark plugs as well and the...

Ever since I was a kid I’ve been in love with the rumble from a flat 4 and from some of the exhaust vids I’ve heard, the Sonic gets pretty close! What would be your guys’ recommendations for a deep rumble like a Subaru? I don’t really care how loud it is. Favorite one so far is a tie between the...

I saw on their website there’s two versions, 1.2 and 1.4. The main things I’m trying to monitor is boost pressure, knock retard, possibly 0-60 or 1/4 mile time, true fuel level, and temps. Which one should I get?

I'm in the market for a downpipe and straight pipe catback. I can't find any straight pipe catbacks at all :/ Thanks!

Hey everyone, I just got my Sonic last month and changed the spark plugs today. All of the cylinders (not sure the right term, but where the coils and plugs are housed) have a nice mirror shine to them. Except one. The cylinder (wall?) closest to the driver is corroded along with the metal on...